gem - User contributions [en]

2019 GEM-CEDAR Joint Workshop and GEM Workshop

2019-06-25T14:08:01Z

Kylemurphy: /* [Joint] MAPS/DIP */

'''Detailed Schedule'''

Below is a detailed session schedule for the 2019 GEM Summer Workshop. The schedule of the Joint GEM-CEDAR Workshop on June 22 can be found in the [https://docs.google.com/document/d/13tgjUAhRmpw7kK1W08p7ntRbYQhURdlAVB3JSH1MN-I/edit?usp=sharing Google Doc].

In this page, the tentative speakers and titles in Focus Group sessions are provided by Focus Group Leaders, and other information is taken from the [https://gemworkshop.org/ Workshop Coordinator Website]. Due to the dynamic nature of the Workshop, Focus Groups may continue to revise their session agenda as needed.

'''Poster Sessions''' will be held during 17:00 - 20:00 on Tuesday and Thursday. Poster titles can be found in the [https://gemworkshop.org/pages/gem2019/2019_GEM_poster_0613.pdf Poster Information] page at the Workshop Coordinator website.

All other information about the 2019 GEM Summer Workshop can be found at the [https://gemworkshop.org/ GEM Workshop Coordinator website].

== Monday, June 24 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

* '''Welcome/Intro''': ''J. Bortnik, P. Cassak, R. Millan''

* '''RA MIC Tutorial''': ''W. Li''

* '''RAC SWMI Tutorial''': ''K. Goodrich''

* '''NSF REU Program''': ''D. Baker''

=== 1030-1200: Splinter Sessions ===

==== [FG] IEMIT ====

Location: Lumpkins Ballroom

# Olga Verkhoglyadova: Summary of CEDAR MIT coupling efforts
# Hyunju Connor: Relation between reconnection and cross polar cap potential during the sudden enhancement of solar wind pressure; SMILE mission for the MIT coupling study.
# Doga Ozturk: What is the role of meso-scale electric fields in M-I-T Coupling?
# Kevin Pham: CMIT model
# Dong Wei: The magnetospheric driving source of double-peak subauroral ion drifts (DSAIDs): Double ring current pressure peak
# Qianli Ma: diffusion coefficients due to chorus waves and electron precipitation features
# Dmytro Sydorenko: Development of a photoelectron effects module for a comprehensive model of coupled ionosphere and magnetosphere
# Zihan Wang: SED segmentation due to boundary flows

==== [FG] MMV ====

Location: New Mexico

Natalia Ganjushkina - ''Metrics for Minute-Scale Variations of keV Electrons in the Inner Magnetosphere'' 
Adam Kellerman - ''Validation of 3D electron radiation belt modeling using in situ measurements: Implemented at the CCMC'' 
Lutz Rastaetter - ''CCMC update + 2D validation and 2D to 1D timeline validation'' 
Katherine Garcia-Sage - ''Focus group update and planning'' 

==== [FG] BSH ====
Location: Santa Fe

# Steve Schwartz (Tutorial on quasi-potential fields in shocks)
# Li-Jen Chen (Quasi-potential fields or not: MMS perspectives)
# Jonathan Ng (Simulations of microinstabilities leading to electron heating at the bow shock)
# Shan Wang (Reconnection in the shock transition region)

=== 1200 - 1230: LWS Discussion ===

Location: New Mexico

=== 1330-1500: Splinter Sessions ===

==== [FG] IEMIT ====

Location: Lumpkins Ballroom North

# Christine Garbrielse: Storm Time Mesoscale Plasma Flows in the Nightside High‐Latitude Ionosphere
# Jiang Liu: SWARM & DMSP observations of the eastward plasma flows in the dawnside ionosphere and their comparison with THEMIS ASI observations.
# Ying Zou: effects of substorms in high-latitude upper thermospheric winds
# Sebastijan Mrak : Storm-time MI-coupling at mid-latitudes: Highly structured plasmapause boundary layer
# Brian Anderson: Observed GIC Events in the Pacific Northwest and Corresponding Ionospheric Electrodynamics: Beyond Substorms as the Dominant Cause of GICs
# Denny Oliveira: A historical finding of a sporadic aurora sighting in Rio de Janeiro, Brazil, on 15 Feb 1875
# Colby Lemon: Role of ion precipitation in plasmasphere erosion
# Naomi Maruyama: Cold plume plasma coupling between the magnetosphere, plasmasphere and ionosphere

==== [FG] BSH ====

Location: Lumpkins Ballroom South

# Naoki Bessho (PIC simulations of shocks and reconnection)
# Ilya Kuzichev (PIC simulation of the whistler heat flux instability in the interplanetary shocks)
# Anton Artemyev (Nonlinear wave-particle interaction in application to bow shock physics)
# Terry Liu (Particle acceleration by magnetosheath jet-driven bow waves)

==== [Joint] TAIL/MMV ====

Location: New Mexico room

1. '''Natalia Ganjushkina''', "Magnetotail structure inferred from observations of isotropic boundaries at NOAA satellites and global MHD modeling"

2. '''Modeling challenge''': An event (06-11 UT of 2017-07-09) will be presented and dicussed to understand the global response of the tail, from near-Earth to mid-tail, and the ionosphere to an IMF southward turning, and an IMF northward turning. This is an midnight conjunction of ERG (r < 5), GOES, Geotail (X = -11), MMS (X = -23), and ARTEMIS (X = -63). The observations will be compared with the BATS-R-US, OpenGGCM, and LFM runs conducted on NASA CCMC. The global models will be compared with ionosphere observations/empirical models, including SuperDARN, Ovation Prime, AMPERE, equivalent current, and ground magnetometers.

Tail (Chih-Ping Wang)

SuperDARN (Xueling Shi)

Ovation Prime (Betsey Mitchell)

AMPERE (Brian Anderson, Sarah Vines)

Spheric elementary current (James Weygand)

==== [FG] GBMAB ====

Location: Santa Fe
*Mike Hartinger - Updates on ground magnetometer advisory board activities
*Mark Engebretson - Summary of information gathering report
*Lisa Winter - NSF updates
*Hyomin Kim - DRUM/DASI updates and future plans, discussion
*Jesper Gjerloev - SuperMAG updates
*Josh Rigler - USGS updates, updates from other magnetometer arrays

=== 1530-1700: Splinter Sessions ===

==== [FG] IHMIC ====

Location: Lumpkins Ballroom North
* Denny Oliveira: Asymmetric satellite orbital drag effects during magnetic storms
* Zhonghua Xu: Inter-hemispheric asymmetries in the ground magnetic response to interplanetary shocks: The role of shock impact angle
* Brian Anderson: Update on simultaneous northern and southern hemisphere measures of latitudes and intensities of Birkeland currents from AMPERE
* Shini Ohtani: Dependence of the auroral electrojet intensity on the solar illumination and dipole tilt
* Christine Gabrielse: The difference between meso-scale flow speeds between summer and winter hemispheres
* Tetsuo Motoba: Asymmetric SC/Pc5 amplitudes at the Syowa–Iceland conjugate pair
* Discussion on asymmetry issues and community input (campaign(s), future Antarctic project(s), etc)

==== [FG] RX ====
Local and Kinetic Physics of Reconnection 
Location: Lumpkins Ballroom South 
1. Binbin Tang – Crescent shaped electron distributions at the non-reconnecting magnetopause 
2. Jason Shuster – MMS measurements of the Vlasov Equation 
3. Yi-Hsin Liu – The Dawn-Dusk asymmetry at Earth vs. Mercury 
4. Lijen Chen – Electron dynamics driven by nonlinear waves in a guide-field reconnection layer 
5. Jonathan Ng – Three dimensional instabilities in the symmetric reconnection layer with a moderate guide field. 
6. Rick Wilder - Open discussion on potential challenges!

==== [Joint] UMEA/MMV ====

Location: New Mexico

Recent advances in ULF wave research: Modeling

*Mike Hartinger, FG updates
*Jesper Gjerloev, SuperMAG ULF updates
*Tetsuo Motoba, High-time resolution SuperMAG ULF data products
*Lutz Rastaetter, ULF wave modeling challenge
*Maulik Patel, MHD test particle simulations of the 16 July 2017 shock compression of the dayside magnetopause
*Bob McPherron, Pi 2 pulsations during the storm of May 27-29 2017, The Statistics of Pi 2 Pulsation Occurrence during a Major Magnetic Storm
*Dong Lin, LFM simulations of surface waves during challenge event

==== Python ====

Location: Santa Fe

=== 1700-1800: Town Hall - Decadal midterm assessment ===

== Tuesday, June 25 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

'''Agency Talks'''

* NSF GS: M. Wiltberger
* NSF GEO: L. Winter
* NASA: M. Kessel
* NOAA: H. Singer
* Air Force: J. McCollough
* CSSP: H. Singer, T. Pulkkinen

=== 1030-1200: Splinter Sessions ===

==== [Joint] IHMIC/MAPS ====

Location: Lumpkins Ballroom
* Toshi Nishimura: Magnetospheric source and inter-hemispheric conjugacy of STEVE arc
* Larry Lyons: Outstanding questions on the role of meso-scale flow channels in the coupled M-I system
* Anders Ohma: How asymmetries in geospace evolve during increased tail reconnection
* Mike Hartinger: Possible experiments/observational campaigns to explore IH asymmetries during the upcoming 2020/2021 southern hemisphere solar eclipses
* Shane Coyle: An experimental approach to inter-hemispheric asymmetries in the ground magnetic response of magnetospheric ULF waves
* Discussion on asymmetry issues and community input (campaign(s), future Antarctic project(s), etc)

==== [FG] RB ====

Location: New Mexico

1. Chairs: Introduction of New Focus Group

2. Seth Claudepierre: Recent Advances and Open Questions in Radiation Belt Studies

3. Wen Li: Review and Challenges of Multi-Point Measurements to Radiation Belt Modeling

4. Open Discussions

==== [FG] RX ====
Local and Kinetic Physics of Reconnection 
Location: Santa Fe Room 
1. Misha Sitnov – Kinetic dissipation in magnetotail reconnection 
2. Stefan Eriksson – Nascent flux rope observations at the earth’s dayside magnetopause 
3. Marty Goldman – Multibeam energy transport 
4. David Newman – Kinetic Current Sheet Equilibria with Agyrotropic Electron Crescent Populations 
5. Sanni Hoilijoki – Electron-scale Magnetic Structure Observed Adjacent to the EDR at the Dayside Magnetopause 
6. Daniel Graham - Lower hybrid waves and reconnection 

=== 1200 - 1230: CCMC Report ===

Location: New Mexico

=== 1330-1500: Splinter Sessions ===

==== [FG] M3-I2 ====

Location: Lumpkins Ballroom North

in collaboration with DIPS and MMV groups
*Chair: Rick Chappell -- Scribe: Barbara Giles
#'''Rick Chappell, Focus Group co-Chair:''' Overview and Updates
#'''Invited: Daniel Welling:''' A Three Fluid Approach to Comprehensive Outflow Modeling
#'''Invited: George Khazanov:''' The Electrostatic Potential Jumps Over the Sunlit Polar Cap Region
#'''Invited: Matina Gkioulidou:''' O+ circulation within the M-I coupled system
#'''Matthew Huddleston:''' Ion Trajectories Connecting the Ionosphere to the Magnetosphere
#'''Chih-Ping Wang:'''Magnetospheric Drivers for Ion Upflow and Outflow within Quiet-time Plasma Sheet: MMS and DMSP Observation
 

==== [FG] RB ====

Location: Lumpkins Ballroom South

1. Precipitation Conjunction Events

Mykhaylo Shumko and Ashley Greeley: Precipitation Conjunction Events Overview

Nithin Sivadas: Optical Signatures of the Radiation Belt Boundary

Wen Li: Direct Observation of Sub-Relativistic Electron Precipitation Driven by EMIC Waves

Questions and Discussions

2. Close Conjunction Events

Drew Turner and Ian Cohen: Close Conjunction Events between Van Allen Probes, MMS, and ARASE

Justin Lee: EMIC wave activity during MMS-RBSP Close Conjunctions

Questions and Discussions

3. General Contributions: Radiation Belt Particles

Geoff Reeves: Identifying the Magnitude and Occurrence Frequency of Radiation Belt Enhancement Events

Maulik Patel: Simulations using LFM and Test Particle Code to Reproduce Drift Echoes

Seth Claudiepierre: Electron Lifetimes from RBSP Observations and Comparison with Theoretical Estimates due to Pitch Angle Diffusion by Various Wave Modes

Sasha Drozdov: Depletion of Multi-MeV Electrons

Questions and Discussions

==== [FG] RX ====
Local and Kinetic Physics of Reconnection 
Location: New Mexico Room 
1. Rick Wilder – A survey of plasma waves associated with asymmetric EDR events 
2. Wenya Li (Presented by Daniel Graham) – Electron Bernstein waves driven by electron crescents near the electron diffusion region. 
3. San Lu – Turbulence and particle acceleration in magnetic reconnection obtained from PIC simulations. 
4. Pryash Sharma Pyakurel – 3D electron-only reconnection 
5. Matt Argall – Observations of kinetic entropy in the diffusion region of magnetic reconnection. 
6. Blake Wetherton – Scaling of electron-scale heating in the exhausts of guide-field reconnection events. 

==== [Joint] MMS: Turbulence ====

Location: Santa Fe

=== 1530-1700: Splinter Sessions ===

==== [FG] M3-I2 ====

Location: Lumpkins Ballroom North

*Chair: Barbara Giles -- Scribe: Rick Chappell
#'''Invited: Roger Varney:''' title tbd
#'''Invited: Naritoshi Kitamura:''' Solar Zenith Angle Dependence of Relationship Between Energy Inputs to the Ionosphere and Ion Outflow Fluxes
#'''Jonathan Krall:''' SAMI2 simulation of counterstreaming H+ outflows during refilling
#'''Meghan Burleigh:''' Transient ionospheric upflow driven by PMAFs observed during the RENU2 sounding rocket campaign
#'''Chao Yue (UCLA):''' Unexpected field-aligned PAD of energetic ions in the ring current region
#'''Mei-Yun Lin:''' Nitrogen Outflow in the Polar Wind Outflow Model (PWOM)
#'''Chu Xiangning:''''Identifying the Magnetospheric Driver of STEVE'

==== [Joint] MMV/IEMIT ====

Location: Lumpkins Ballroom South

# Overview from the CEDAR conductance challenge on the 17 Mar 2013 storm
# Shin Ohtani: Solar zenith angle dependence of the auroral electrojets and its impact on conductance.
# Toshi Nishimura: Ionospheric conductance observations of the 17 March 2013 event
# Doga Ozturk: GTIM empirical results.
# Gang Lu: AMIE results on the 17 Mar 2013 storm
# Bob Robinson: The 17 Mar 2013 storm results from a new empirical ionospheric electrodynamics model
# Hyunju Connor: OpenGGCM results on the 17 Mar 2013 storm
# Kevin Pham: CMIT-IPWM results on the 17 Mar 2013 storm
# Agnit Mukhopadhya: BATSRUS results on the 17 Mar 2013 storm
# Magaret Chen: Magnetosphere-Ionosphere Electron Precipitation Dynamics and Conductance during the 17 March 2013 Storm

See session description at the [http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_3D_Ionospheric_Electrodynamics_and_Its_Impact_on_the_Magnetosphere-Ionosphere-Thermosphere_Coupled_System#2019_GEM_Workshop_-_updated_on_Jun_17.2C_2019 FG page].

==== [FG] DIP ====

'''Location: New Mexico'''
 Point-of-contact: Christine Gabrielse (cgabrielse@ucla.edu)
 Co-chairs: Matina Gkioulidou, David Malaspina

'''Topic: Particle Energization/Injection'''

* '''Raluca Ilie''' - The role of inductive electric fields on particle energization 
* '''Jianghuai Liu''' - The role of inductive electric fields on particle energization (con'd) 
* '''Sam Bingham''' - Adiabatic Particle Energization using MMS 
* '''Wonde Eshetu''' - Simulations of electron energization and injection by BBFs using High-Resolution LFM MHD fields 
* '''Christine Gabrielse''' - Heliophysics System Observatory observations of small and large-scale injections: DFBs vs. large-scale dipolarization 
* '''Bob McPherron''' - MHD simulation of substorm including progressive approach of X-lines, flow channels, and flow penetration to the inner plasma sheet 
* '''Tetsuo Motoba''' - Azimuthally localized dispersionless injections inside GEO 
* '''Discussion on Particle Energization/Injection''' 
** ''Role of different fields?'' 
** ''Large vs. Small-scale?'' 
** ''This discussion will be inspired by the main points and questions presented.'' 
 
 
 

==== [Joint] MMS: Turbulence ====

Location: Santa Fe

=== 1700-2000: Poster Session ===

Please visit the [https://gemworkshop.org/pages/gem2019/2019_GEM_poster_0613.pdf Poster Information] page for details.

== Wednesday, June 26 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

* '''RA GSM Tutorial''': ''J. Burch''

* '''MMV Tutorial''': ''K. Garcia-Sage''

=== 1030-1200: Splinter Sessions ===

==== [FG] M3-I2 ====

Location: Lumpkins Ballroom

Joint with the MMS Science Working Team
*Chair: Barbara Giles -- Scribe: Rick Chappell
#'''Invited: Lynn Kistler:''' Investigating Sources of Plasma Sheet Plasma
#'''Invited: Stephen Fuselier:''' O+ in the Outer Magnetosphere: Effect on Magnetic Reconnection at the Magnetopause
#'''Naritoshi Kitamura:''' O+ Measurements by MMS Around the Near-Earth Plasma Sheet Boundary
#'''Li-Jen Chen:''' Can energetic O+ outflows preceding superstorms participate in the ring current directly?
#'''Christopher Mouikis:''' title soon to be supplied
#'''Justin Lee:''' MMS Measurements of Low-energy Plasma Composition and its Effects on EMIC Waves
#'''Andrei Runov:''' THEMIS observations of ionospheric oxygen outflow during the substorm growth phase

 

<h2>Session 1: Tuesday 1:30PM - Room tbd - Ionosphere/Magnetosphere Merged Models as a Context for the Observations</h2>
in collaboration with DIPS and MMV groups
*Chair: Rick Chappell -- Scribe: Barbara Giles
#'''Rick Chappell, Focus Group co-Chair:''' Overview and Updates
#'''Invited: Daniel Welling:''' A Three Fluid Approach to Comprehensive Outflow Modeling
#'''George Khazanov:''' The Electrostatic Potential Jumps Over the Sunlit Polar Cap Region
#'''Invited: Katie Garcia-Sage:''' title tbd
#'''Invited: Matina Gkioulidou:''' O+ circulation within the M-I coupled system
#'''Matthew Huddleston:''' Ion Trajectories Connecting the Ionosphere to the Magnetosphere
#additional participants welcome! you are welcome to add your contribution here or to email barbara.giles@nasa.gov and rick.chappell@vanderbilt.edu
 

==== [FG] MAPS ====

Location: New Mexico

General substorm session
* '''Kyle Murphy''' Tracking pre-onset aurora
* '''Toshi Nishimura''' Tracking pre-onset aurora
* '''Bea Gallardo-Lacourt (by Murphy)''' Tracking pre-onset aurora
* '''Jiang Liu''' Ionosphere flows during substorms
* '''Larry Lyons''' Substorm precursors and expansion phase activity
* '''Nithin Sivadas''' Energetic electron precipitation
 

==== [Joint] UMEA/DAYS/IHMIC ====

Location: Santa Fe

The ULF response to dayside transients with different temporal/spatial scales and asymmetries

* Tom Elsden - ''Session introduction and goals''

* Ferdinand Plaschke - ''An overview of dayside transients causing ULF waves''

* Tom Elsden - ''3D ULF wave modeling with MHD''

* Boyi Wang - ''The role of magnetosheath high-speed jets in triggering magnetospheric Pc5 ULF waves''

* Bob Lysak - ''Ionospheric asymmetries and quarter-wave modes''

* Xueling Shi - ''Conjugate Observations of ULF Waves during an Extended Period of Radial IMF''

* Michael Hartinger - ''Localized magnetopause surface wave activity and modeling challenges''

* Discussion

=== 1200 - 1230: URM Event ===

Location: New Mexico

=== 1330-1500: Splinter Sessions ===

==== [FG] M3-I2 ====

Location: Lumpkins Ballroom North

*Chair: Rick Chappell -- Scribe: Barbara Giles
#'''Invited: Andrew Yau: e-POP Ion Composition Observations of Topside Ion Upflows: Storm Challenge Events 1 and 2 and Statistical Study of Other Storms in 2014-2017
#'''Invited: Katie Garcia-Sage:''' Outflow Validation and Challenges
#'''Barbara Giles:''' Access to Polar TIDE outflow data base, new tools, new data products
#'''Rick Chappell:''' Summary of Progess:
#'''Discussion on the Storm Challenges
#Additional participants welcome! Email barbara.giles@nasa.gov and rick.chappell@vanderbilt.edu

==== [Joint] DAYS/BSH ====

Location: Lumpkins Ballroom South

* Andrew Dimmock - ''Introduction''

* Ian Cohen - ''High-resolution measurements of the cross-shock potential, ion reflection, and electron heating at an interplanetary shock by MMS''

* Xin An - ''Formation of foreshock transients and associated secondary shocks''

* Yann Pfau-Kempf - ''Transmission of foreshock ULF waves to the magnetosheath''

* Misha Balikhin - ''Nonstationarity of the quasi-perpendicular bow shock''

* Heli Hietala - ''Global 3D hybrid simulations of magnetosheath jets''

* Terry Liu - ''Statistical study of magnetosheath jet-driven bow waves''

==== [FG] DIP ====

'''Location: New Mexico'''
 Point-of-contact: Christine Gabrielse (cgabrielse@ucla.edu)
 Co-chairs: Matina Gkioulidou, David Malaspina

'''Topic: Energy Transfer and Dissipation'''
* '''Xiangning Chu''' - The generation of STEVE and penetration of fast flows to the plasmapause
* '''Misha Sitnov''' - Kinetic dissipation in dipolarization fronts and magnetic reconnection
* '''Rumi Nakamura''' - MMS observations of multi-scale field-aligned currents during dipolarization in the near-Earth plasma sheet
* '''Amy Keesee''' - Concurrent enhancements in ion temperatures and auroral brightenings seen by TWINS and ASIs
* '''Joachim Birn''' - Energy release and conversion and dynamo action in the tail on the basis of MHD simulation 
* '''Shin Ohtani''' - Dissipation and the ionosphere

* '''Discussion on energy dissipation'''
** Can we estimate a percentage that energy is dissipated into waves, direct ion heating, etc.?
** Can we determine if and to what extent a dynamo in the transition region (driven by pressure gradients or vorticity) converts energy dissipated from the tail into field aligned currents to drive dissipation in the ionosphere?
** What are the ways to estimate these values (simulation or theory or observational)?
 
 
 

=== 1530-1700: Splinter Sessions ===

==== [FG] DIP ====

'''Location: Lumpkins Ballroom North'''
 Point-of-contact: Christine Gabrielse (cgabrielse@ucla.edu)
 Co-chairs: Matina Gkioulidou, David Malaspina

'''Topic: Currents and Focus Group Discussion'''
* '''Continue discussion from previous session (limit to 30 min)'''
* '''Misha Sitnov''' - Dipolarizations and their connection to the ring current buildup and magnetic reconnection
* '''Shin Ohtani''' - Double-wedge current system based on the GOES-RBSP comparison of dipolarization signatures
* '''Yi-Hsin Liu''' - An explanation of the opposite dawn-dusk asymmetry at magnetotails of Earth vs. Mercury
* '''Olivier Le Contel(?)''' - Quasi-parallel ion flow and energetic particles in PSBL indicating acceleration region farther downtail 

* '''Continue discussion from previous sessions'''
** Updates from mini-GEM discussion?
** Future planning: Community Input
 
 
 

==== [Joint] UMEA/IEMIT ====

Location: Lumpkins Ballroom South

ULF wave modeling challenges associated with M-I-T Coupling

# (Invited) Boyi Wang: Ionospheric modulation by Pc5 ULF waves and wave structure detected by PFISR
# (Invited) Xiaojia Zhang / Anton Artemyev: ULF modulation of VLF waves and precipitation
# Doga Ozturk: Update from GEM/CEDAR joint session, PFISR E/ground magnetometer comparisons
# Anatoly Streltsov: ULF waves generated by the MI interactions near the plasmapause
# Mergen Aligabetov: ULF waves observed in space and on the ground at high and low latitudes
# Mark Engebretson: Multi-Instrument Observations of Nighttime Impulsive Magnetic Events
# Bob Lysak: Modeling ionospheric conductance and ground magnetic fields
# Yan Song: ULF wave, M-I coupling and Auroral formation.

==== [Joint] MMS: Bowshock ====

Location: New Mexico

==== [Joint] MMS: Inner M'sphere ====

Location: Santa Fe

== Thursday, June 27 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

* '''RA MPS Tutorial''': ''A. Runov''

* '''RA IMAG Tutorial''': ''H. Zhao''

* '''Mission/Modeling''': ''M. Gkioulidou, T. Nishimura''

=== 1030-1200: Splinter Sessions ===

==== [FG] Rx ====
Local and Kinetic Physics of Reconnection 
Location: Lumpkins Ballroom 
1. Anton Artemyev – MMS, Artemis and optic observations of the magnetotail reconnection 
2. Misha Sitnov – Global context of magnetotail reconnection and the global topology of the magnetic field during the July 11 2017 EDR event. 
3. Narges Ahmadi – Turbulence in magnetotail reconnection 
4. Chih-Ping Wang – Simultaneous earthward and tailward busty flows observed by the two ARTEMIS in mid-tail (60 Re) and comparisons with PIC simulations. 
5. Chris Bard - Hall MHD effects on tail reconnection for a Earth-like, miniature magnetosphere. 
6. Olivier Le Contel - Electron holes in the plasma sheet - related to reconnection? 

==== [Joint] UMEA/RB ====

Location: New Mexico

EMIC waves

*Robert Allen, Outer magnetospheric EMIC wave source regions characterized by Cluster
*Sarah Vines, EMIC waves in the outer magnetosphere: Observations of an off-equator source region
*Justin Lee, EMIC wave observations by MMS
*Chao Yue, The relationship between EMIC wave properties and proton distributions based on Van Allen Probes observations
*Kristine Sigsbee, Simultaneous EMIC Wave Observations During a Van Allen Probes Conjunction
*Hyomin Kim, Observations of Particle Loss due to Injection-Associated EMIC Waves
*Yuri Shprits, Dips in PSD and how they are related to EMIC wave scattering
*Richard Denton, Electromagnetic ion cyclotron waves in the dipole magnetosphere and pitch angle scattering of sub-MeV relativistic electrons by those waves
*Qianli Ma, Pitch angle scattering of radiation belt electrons due to statistical EMIC wave spectra

==== SPEDAS ====

Location: Santa Fe

=== 1330-1500: Splinter Sessions ===

==== [Joint] MAPS/DIP ====

Location: Lumpkins Ballroom North

Amy Keese - Twins observations of the inner magnetosphere during storms

Allison Jaynes - The effects of substorms on the inner magnetosphere

Andrei Runov - Do dipolarization contribute to ring current formation during storms?

Sam Bingham - Evolution of inner magnetospheric plasma during CME and CIR driven storms

Grant Stephens (by Misha Sitnov) - Emperical modelling of tail current systems

John Dorelli - Reconnection onset and bursty bulk flow (SWMF)

Anna DeJong - Defining intervals of steady magnetospheric convection

==== [Joint] RX/DAYS ====

Location: Lumpkins Ballroom South 
1. Katariina Nykyri – High latitude diamagnetic cavities 
2. Andrew Dimmock – The SMILE SXI instrument: a global imager for solar wind – dayside interactions 
3. Brian Walsh – Cubesat mission to study magnetic reconnection 
4. Xuanye Ma – Compairson between fluid simulations with test particles and hybrid simulations of the Kelvin-Helmholtz instability 
5. Karlheinz Trattner – Elongated Dayside X-lines 
6. Marcos Sylveira - Flux transfer events observed in the dayside magnetopause by MMS mission. 

==== [FG] UMEA ====

Location: New Mexico

Recent advances in ULF wave research: Observations

*Matina Gkioulidou/Seth Claudepierre, RBSP HGSO coordination
*Sarah Vines, Determining EMIC wave vector properties through multi-point measurements: The wave curl analysis
*Larry Kepko, Solar wind driven ULF waves
*Aaron Breneman, BARREL precipitation during solar wind driven ULF wave events
*Anatoly Streltsov, Effect of the Hall Conductivity on the generation of ULF waves
*Mohammad Barani, Estimating the Azimuthal Mode Structure of ULF Waves Based on Multiple GOES Satellite Observations
*Kazue Takahashi, L versus time structures of ground magnetic pulsations
*Chih-Ping Wang, Earthward propagation of Pi2 waves

=== 1530-1700: Splinter Sessions ===

==== [FG] TAIL ====

Location: Lumpkins Ballroom North

1.'''Anton Artemyev,''' Multicomponent ion population in the magnetotail

2. '''Sasha Lukin (presented by Anton),''' Plasma populations around the distant equatorial magnetopause: indication on selective mechanism of ion and electron transport

2. '''Olivier Le Contel,''' MMS/cluster joint observations during PSBL crossings

3. '''Jiang Liu,''' Field-aligned current carriers in the magnetotail

4. '''Steve Xu,''' Statistics of current sheets at lunar distance

5. '''San Lu,''' Reconnection in polarized thin current sheet

6. '''Chih-Ping Wang,''' Firehose instability within the recoonection exhaust observed in mid-tail

==== [FG] UMEA ====

Location: Lumpkins Ballroom South

ULF waves driven by wave-particle interactions and instabilities

*Xuzhi Zhou, Acceleration of relativistic electrons by global-scale ULF waves
*Tomotsugu Yamakawa, Simulation of the excitation of storm-time Pc5 ULF waves by ring current ions based on the drift-kinetic model
*Frank Toffoletto, Buoyancy Waves (TBD)
*Peter Chi, Observations of High-m Poloidal Waves along Magnetospheric Field Lines
*Mike Hartinger, Observations of wave-particle interactions using MagEIS ultra-high resolution energy channels
*Jiang Liu, Ultralow Frequency Waves Deep Inside the Inner Magnetosphere Driven by Dipolarizing Flux Bundles, and their interaction with electrons

==== [Joint] MMS: SPEDAS ====

Location: New Mexico

==== [Joint] DAYS/MMV ====

Location: Santa Fe

* Heli Hietala - ''Challenge progress summary''

* Sarah Vines - ''MMS observations during southward IMF: recap and update''

* Karlheinz Trattner - ''Maximum shear model results''

* Zhifang Guo - ''Global 3D hybrid simulation results''

* Marcos Silveira - Magnetopause transients seen in the challenge event: MMS vs MHD-EPIC comparison

* Discussion - including Special Issue manuscript coordination

=== 1700-2000: Poster Session ===

Please visit the [https://gemworkshop.org/pages/gem2019/2019_GEM_poster_0613.pdf Poster Information] page for details.

== Friday, June 28 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

* '''Students Awards, Student Invited Tutorial''': ''M. Argall''

* '''Mission/Modeling''': ''J. Sample''

=== 1030-1200: Splinter Sessions ===

==== [FG] TAIL ====

Location: Lumpkins Ballroom

This is the final year for Tail Environment FG, we will summary the major findings from this FG. We will discuss how we will proceed to maintain the discussion platform for the magnetotail physics in GEM community, including a proposal for a new FG.

==== [FG] RB ====

Location: New Mexico

1. General Contributions: Inner Belt and Slot Region

Xinlin Li: Source and Loss of Inner Belt Protons (10s of MeV) and Their Solar Cycle Variations Based on Multi-Point Measurements and Analysis

Zheng Xiang: On Trapped Electron Dynamics in Earth's Inner Radiation Belt due to Atmospheric Scattering Loss and Cosmic Ray Albedo Neutron Decay (CRAND) as the Source

Man Hua: Modeling Electron Acceleration and Butterfly Pitch Angle Distributions in the Earth's Inner Radiation Belt and Slot Region

Questions and Discussions

2. General Contributions: Radiation Belt Waves

Dave Hartley: The Angular Distribution of Chorus Waves and the Role of Plumes in the Chorus-to-Hiss Mechanism

Xin An: Nonlinear Wave Structures Driven by Whistler Waves

Shangchun Teng: Typical Characteristics of Whistler Mode Waves Categorized by Their Spectral Properties Using Van Allen Probes Observations

Ivan Vasko: Electrostatic Steepening of Whistler Waves in the Radiation Belts

Jinxing Li: Origin of two-band chorus waves in the Earth’s outer radiation belt

Homayon Aryan: Discrete Equatorial Magnetosonic Waves Observed by Cluster

Oleksiy Agapitov: TBD

Questions and Discussions

3. General Contributions: Radiation Belt Modeling

Anthony Chan: A New Technique for Radiation Belt Modeling: Theory

Scot Elkington: A New Technique for Radiation Belt Modeling: Results

Yihua Zheng: Model Validation

Liheng Zheng: Drift shell bifurcation effects on radiation belt electrons modeled by Markov chain

Questions and Discussions

2019 GEM-CEDAR Joint Workshop and GEM Workshop

2019-06-25T14:07:25Z

Kylemurphy: /* [Joint] MAPS/DIP */

'''Detailed Schedule'''

Below is a detailed session schedule for the 2019 GEM Summer Workshop. The schedule of the Joint GEM-CEDAR Workshop on June 22 can be found in the [https://docs.google.com/document/d/13tgjUAhRmpw7kK1W08p7ntRbYQhURdlAVB3JSH1MN-I/edit?usp=sharing Google Doc].

In this page, the tentative speakers and titles in Focus Group sessions are provided by Focus Group Leaders, and other information is taken from the [https://gemworkshop.org/ Workshop Coordinator Website]. Due to the dynamic nature of the Workshop, Focus Groups may continue to revise their session agenda as needed.

'''Poster Sessions''' will be held during 17:00 - 20:00 on Tuesday and Thursday. Poster titles can be found in the [https://gemworkshop.org/pages/gem2019/2019_GEM_poster_0613.pdf Poster Information] page at the Workshop Coordinator website.

All other information about the 2019 GEM Summer Workshop can be found at the [https://gemworkshop.org/ GEM Workshop Coordinator website].

== Monday, June 24 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

* '''Welcome/Intro''': ''J. Bortnik, P. Cassak, R. Millan''

* '''RA MIC Tutorial''': ''W. Li''

* '''RAC SWMI Tutorial''': ''K. Goodrich''

* '''NSF REU Program''': ''D. Baker''

=== 1030-1200: Splinter Sessions ===

==== [FG] IEMIT ====

Location: Lumpkins Ballroom

# Olga Verkhoglyadova: Summary of CEDAR MIT coupling efforts
# Hyunju Connor: Relation between reconnection and cross polar cap potential during the sudden enhancement of solar wind pressure; SMILE mission for the MIT coupling study.
# Doga Ozturk: What is the role of meso-scale electric fields in M-I-T Coupling?
# Kevin Pham: CMIT model
# Dong Wei: The magnetospheric driving source of double-peak subauroral ion drifts (DSAIDs): Double ring current pressure peak
# Qianli Ma: diffusion coefficients due to chorus waves and electron precipitation features
# Dmytro Sydorenko: Development of a photoelectron effects module for a comprehensive model of coupled ionosphere and magnetosphere
# Zihan Wang: SED segmentation due to boundary flows

==== [FG] MMV ====

Location: New Mexico

Natalia Ganjushkina - ''Metrics for Minute-Scale Variations of keV Electrons in the Inner Magnetosphere'' 
Adam Kellerman - ''Validation of 3D electron radiation belt modeling using in situ measurements: Implemented at the CCMC'' 
Lutz Rastaetter - ''CCMC update + 2D validation and 2D to 1D timeline validation'' 
Katherine Garcia-Sage - ''Focus group update and planning'' 

==== [FG] BSH ====
Location: Santa Fe

# Steve Schwartz (Tutorial on quasi-potential fields in shocks)
# Li-Jen Chen (Quasi-potential fields or not: MMS perspectives)
# Jonathan Ng (Simulations of microinstabilities leading to electron heating at the bow shock)
# Shan Wang (Reconnection in the shock transition region)

=== 1200 - 1230: LWS Discussion ===

Location: New Mexico

=== 1330-1500: Splinter Sessions ===

==== [FG] IEMIT ====

Location: Lumpkins Ballroom North

# Christine Garbrielse: Storm Time Mesoscale Plasma Flows in the Nightside High‐Latitude Ionosphere
# Jiang Liu: SWARM & DMSP observations of the eastward plasma flows in the dawnside ionosphere and their comparison with THEMIS ASI observations.
# Ying Zou: effects of substorms in high-latitude upper thermospheric winds
# Sebastijan Mrak : Storm-time MI-coupling at mid-latitudes: Highly structured plasmapause boundary layer
# Brian Anderson: Observed GIC Events in the Pacific Northwest and Corresponding Ionospheric Electrodynamics: Beyond Substorms as the Dominant Cause of GICs
# Denny Oliveira: A historical finding of a sporadic aurora sighting in Rio de Janeiro, Brazil, on 15 Feb 1875
# Colby Lemon: Role of ion precipitation in plasmasphere erosion
# Naomi Maruyama: Cold plume plasma coupling between the magnetosphere, plasmasphere and ionosphere

==== [FG] BSH ====

Location: Lumpkins Ballroom South

# Naoki Bessho (PIC simulations of shocks and reconnection)
# Ilya Kuzichev (PIC simulation of the whistler heat flux instability in the interplanetary shocks)
# Anton Artemyev (Nonlinear wave-particle interaction in application to bow shock physics)
# Terry Liu (Particle acceleration by magnetosheath jet-driven bow waves)

==== [Joint] TAIL/MMV ====

Location: New Mexico room

1. '''Natalia Ganjushkina''', "Magnetotail structure inferred from observations of isotropic boundaries at NOAA satellites and global MHD modeling"

2. '''Modeling challenge''': An event (06-11 UT of 2017-07-09) will be presented and dicussed to understand the global response of the tail, from near-Earth to mid-tail, and the ionosphere to an IMF southward turning, and an IMF northward turning. This is an midnight conjunction of ERG (r < 5), GOES, Geotail (X = -11), MMS (X = -23), and ARTEMIS (X = -63). The observations will be compared with the BATS-R-US, OpenGGCM, and LFM runs conducted on NASA CCMC. The global models will be compared with ionosphere observations/empirical models, including SuperDARN, Ovation Prime, AMPERE, equivalent current, and ground magnetometers.

Tail (Chih-Ping Wang)

SuperDARN (Xueling Shi)

Ovation Prime (Betsey Mitchell)

AMPERE (Brian Anderson, Sarah Vines)

Spheric elementary current (James Weygand)

==== [FG] GBMAB ====

Location: Santa Fe
*Mike Hartinger - Updates on ground magnetometer advisory board activities
*Mark Engebretson - Summary of information gathering report
*Lisa Winter - NSF updates
*Hyomin Kim - DRUM/DASI updates and future plans, discussion
*Jesper Gjerloev - SuperMAG updates
*Josh Rigler - USGS updates, updates from other magnetometer arrays

=== 1530-1700: Splinter Sessions ===

==== [FG] IHMIC ====

Location: Lumpkins Ballroom North
* Denny Oliveira: Asymmetric satellite orbital drag effects during magnetic storms
* Zhonghua Xu: Inter-hemispheric asymmetries in the ground magnetic response to interplanetary shocks: The role of shock impact angle
* Brian Anderson: Update on simultaneous northern and southern hemisphere measures of latitudes and intensities of Birkeland currents from AMPERE
* Shini Ohtani: Dependence of the auroral electrojet intensity on the solar illumination and dipole tilt
* Christine Gabrielse: The difference between meso-scale flow speeds between summer and winter hemispheres
* Tetsuo Motoba: Asymmetric SC/Pc5 amplitudes at the Syowa–Iceland conjugate pair
* Discussion on asymmetry issues and community input (campaign(s), future Antarctic project(s), etc)

==== [FG] RX ====
Local and Kinetic Physics of Reconnection 
Location: Lumpkins Ballroom South 
1. Binbin Tang – Crescent shaped electron distributions at the non-reconnecting magnetopause 
2. Jason Shuster – MMS measurements of the Vlasov Equation 
3. Yi-Hsin Liu – The Dawn-Dusk asymmetry at Earth vs. Mercury 
4. Lijen Chen – Electron dynamics driven by nonlinear waves in a guide-field reconnection layer 
5. Jonathan Ng – Three dimensional instabilities in the symmetric reconnection layer with a moderate guide field. 
6. Rick Wilder - Open discussion on potential challenges!

==== [Joint] UMEA/MMV ====

Location: New Mexico

Recent advances in ULF wave research: Modeling

*Mike Hartinger, FG updates
*Jesper Gjerloev, SuperMAG ULF updates
*Tetsuo Motoba, High-time resolution SuperMAG ULF data products
*Lutz Rastaetter, ULF wave modeling challenge
*Maulik Patel, MHD test particle simulations of the 16 July 2017 shock compression of the dayside magnetopause
*Bob McPherron, Pi 2 pulsations during the storm of May 27-29 2017, The Statistics of Pi 2 Pulsation Occurrence during a Major Magnetic Storm
*Dong Lin, LFM simulations of surface waves during challenge event

==== Python ====

Location: Santa Fe

=== 1700-1800: Town Hall - Decadal midterm assessment ===

== Tuesday, June 25 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

'''Agency Talks'''

* NSF GS: M. Wiltberger
* NSF GEO: L. Winter
* NASA: M. Kessel
* NOAA: H. Singer
* Air Force: J. McCollough
* CSSP: H. Singer, T. Pulkkinen

=== 1030-1200: Splinter Sessions ===

==== [Joint] IHMIC/MAPS ====

Location: Lumpkins Ballroom
* Toshi Nishimura: Magnetospheric source and inter-hemispheric conjugacy of STEVE arc
* Larry Lyons: Outstanding questions on the role of meso-scale flow channels in the coupled M-I system
* Anders Ohma: How asymmetries in geospace evolve during increased tail reconnection
* Mike Hartinger: Possible experiments/observational campaigns to explore IH asymmetries during the upcoming 2020/2021 southern hemisphere solar eclipses
* Shane Coyle: An experimental approach to inter-hemispheric asymmetries in the ground magnetic response of magnetospheric ULF waves
* Discussion on asymmetry issues and community input (campaign(s), future Antarctic project(s), etc)

==== [FG] RB ====

Location: New Mexico

1. Chairs: Introduction of New Focus Group

2. Seth Claudepierre: Recent Advances and Open Questions in Radiation Belt Studies

3. Wen Li: Review and Challenges of Multi-Point Measurements to Radiation Belt Modeling

4. Open Discussions

==== [FG] RX ====
Local and Kinetic Physics of Reconnection 
Location: Santa Fe Room 
1. Misha Sitnov – Kinetic dissipation in magnetotail reconnection 
2. Stefan Eriksson – Nascent flux rope observations at the earth’s dayside magnetopause 
3. Marty Goldman – Multibeam energy transport 
4. David Newman – Kinetic Current Sheet Equilibria with Agyrotropic Electron Crescent Populations 
5. Sanni Hoilijoki – Electron-scale Magnetic Structure Observed Adjacent to the EDR at the Dayside Magnetopause 
6. Daniel Graham - Lower hybrid waves and reconnection 

=== 1200 - 1230: CCMC Report ===

Location: New Mexico

=== 1330-1500: Splinter Sessions ===

==== [FG] M3-I2 ====

Location: Lumpkins Ballroom North

in collaboration with DIPS and MMV groups
*Chair: Rick Chappell -- Scribe: Barbara Giles
#'''Rick Chappell, Focus Group co-Chair:''' Overview and Updates
#'''Invited: Daniel Welling:''' A Three Fluid Approach to Comprehensive Outflow Modeling
#'''Invited: George Khazanov:''' The Electrostatic Potential Jumps Over the Sunlit Polar Cap Region
#'''Invited: Matina Gkioulidou:''' O+ circulation within the M-I coupled system
#'''Matthew Huddleston:''' Ion Trajectories Connecting the Ionosphere to the Magnetosphere
#'''Chih-Ping Wang:'''Magnetospheric Drivers for Ion Upflow and Outflow within Quiet-time Plasma Sheet: MMS and DMSP Observation
 

==== [FG] RB ====

Location: Lumpkins Ballroom South

1. Precipitation Conjunction Events

Mykhaylo Shumko and Ashley Greeley: Precipitation Conjunction Events Overview

Nithin Sivadas: Optical Signatures of the Radiation Belt Boundary

Wen Li: Direct Observation of Sub-Relativistic Electron Precipitation Driven by EMIC Waves

Questions and Discussions

2. Close Conjunction Events

Drew Turner and Ian Cohen: Close Conjunction Events between Van Allen Probes, MMS, and ARASE

Justin Lee: EMIC wave activity during MMS-RBSP Close Conjunctions

Questions and Discussions

3. General Contributions: Radiation Belt Particles

Geoff Reeves: Identifying the Magnitude and Occurrence Frequency of Radiation Belt Enhancement Events

Maulik Patel: Simulations using LFM and Test Particle Code to Reproduce Drift Echoes

Seth Claudiepierre: Electron Lifetimes from RBSP Observations and Comparison with Theoretical Estimates due to Pitch Angle Diffusion by Various Wave Modes

Sasha Drozdov: Depletion of Multi-MeV Electrons

Questions and Discussions

==== [FG] RX ====
Local and Kinetic Physics of Reconnection 
Location: New Mexico Room 
1. Rick Wilder – A survey of plasma waves associated with asymmetric EDR events 
2. Wenya Li (Presented by Daniel Graham) – Electron Bernstein waves driven by electron crescents near the electron diffusion region. 
3. San Lu – Turbulence and particle acceleration in magnetic reconnection obtained from PIC simulations. 
4. Pryash Sharma Pyakurel – 3D electron-only reconnection 
5. Matt Argall – Observations of kinetic entropy in the diffusion region of magnetic reconnection. 
6. Blake Wetherton – Scaling of electron-scale heating in the exhausts of guide-field reconnection events. 

==== [Joint] MMS: Turbulence ====

Location: Santa Fe

=== 1530-1700: Splinter Sessions ===

==== [FG] M3-I2 ====

Location: Lumpkins Ballroom North

*Chair: Barbara Giles -- Scribe: Rick Chappell
#'''Invited: Roger Varney:''' title tbd
#'''Invited: Naritoshi Kitamura:''' Solar Zenith Angle Dependence of Relationship Between Energy Inputs to the Ionosphere and Ion Outflow Fluxes
#'''Jonathan Krall:''' SAMI2 simulation of counterstreaming H+ outflows during refilling
#'''Meghan Burleigh:''' Transient ionospheric upflow driven by PMAFs observed during the RENU2 sounding rocket campaign
#'''Chao Yue (UCLA):''' Unexpected field-aligned PAD of energetic ions in the ring current region
#'''Mei-Yun Lin:''' Nitrogen Outflow in the Polar Wind Outflow Model (PWOM)
#'''Chu Xiangning:''''Identifying the Magnetospheric Driver of STEVE'

==== [Joint] MMV/IEMIT ====

Location: Lumpkins Ballroom South

# Overview from the CEDAR conductance challenge on the 17 Mar 2013 storm
# Shin Ohtani: Solar zenith angle dependence of the auroral electrojets and its impact on conductance.
# Toshi Nishimura: Ionospheric conductance observations of the 17 March 2013 event
# Doga Ozturk: GTIM empirical results.
# Gang Lu: AMIE results on the 17 Mar 2013 storm
# Bob Robinson: The 17 Mar 2013 storm results from a new empirical ionospheric electrodynamics model
# Hyunju Connor: OpenGGCM results on the 17 Mar 2013 storm
# Kevin Pham: CMIT-IPWM results on the 17 Mar 2013 storm
# Agnit Mukhopadhya: BATSRUS results on the 17 Mar 2013 storm
# Magaret Chen: Magnetosphere-Ionosphere Electron Precipitation Dynamics and Conductance during the 17 March 2013 Storm

See session description at the [http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_3D_Ionospheric_Electrodynamics_and_Its_Impact_on_the_Magnetosphere-Ionosphere-Thermosphere_Coupled_System#2019_GEM_Workshop_-_updated_on_Jun_17.2C_2019 FG page].

==== [FG] DIP ====

'''Location: New Mexico'''
 Point-of-contact: Christine Gabrielse (cgabrielse@ucla.edu)
 Co-chairs: Matina Gkioulidou, David Malaspina

'''Topic: Particle Energization/Injection'''

* '''Raluca Ilie''' - The role of inductive electric fields on particle energization 
* '''Jianghuai Liu''' - The role of inductive electric fields on particle energization (con'd) 
* '''Sam Bingham''' - Adiabatic Particle Energization using MMS 
* '''Wonde Eshetu''' - Simulations of electron energization and injection by BBFs using High-Resolution LFM MHD fields 
* '''Christine Gabrielse''' - Heliophysics System Observatory observations of small and large-scale injections: DFBs vs. large-scale dipolarization 
* '''Bob McPherron''' - MHD simulation of substorm including progressive approach of X-lines, flow channels, and flow penetration to the inner plasma sheet 
* '''Tetsuo Motoba''' - Azimuthally localized dispersionless injections inside GEO 
* '''Discussion on Particle Energization/Injection''' 
** ''Role of different fields?'' 
** ''Large vs. Small-scale?'' 
** ''This discussion will be inspired by the main points and questions presented.'' 
 
 
 

==== [Joint] MMS: Turbulence ====

Location: Santa Fe

=== 1700-2000: Poster Session ===

Please visit the [https://gemworkshop.org/pages/gem2019/2019_GEM_poster_0613.pdf Poster Information] page for details.

== Wednesday, June 26 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

* '''RA GSM Tutorial''': ''J. Burch''

* '''MMV Tutorial''': ''K. Garcia-Sage''

=== 1030-1200: Splinter Sessions ===

==== [FG] M3-I2 ====

Location: Lumpkins Ballroom

Joint with the MMS Science Working Team
*Chair: Barbara Giles -- Scribe: Rick Chappell
#'''Invited: Lynn Kistler:''' Investigating Sources of Plasma Sheet Plasma
#'''Invited: Stephen Fuselier:''' O+ in the Outer Magnetosphere: Effect on Magnetic Reconnection at the Magnetopause
#'''Naritoshi Kitamura:''' O+ Measurements by MMS Around the Near-Earth Plasma Sheet Boundary
#'''Li-Jen Chen:''' Can energetic O+ outflows preceding superstorms participate in the ring current directly?
#'''Christopher Mouikis:''' title soon to be supplied
#'''Justin Lee:''' MMS Measurements of Low-energy Plasma Composition and its Effects on EMIC Waves
#'''Andrei Runov:''' THEMIS observations of ionospheric oxygen outflow during the substorm growth phase

 

<h2>Session 1: Tuesday 1:30PM - Room tbd - Ionosphere/Magnetosphere Merged Models as a Context for the Observations</h2>
in collaboration with DIPS and MMV groups
*Chair: Rick Chappell -- Scribe: Barbara Giles
#'''Rick Chappell, Focus Group co-Chair:''' Overview and Updates
#'''Invited: Daniel Welling:''' A Three Fluid Approach to Comprehensive Outflow Modeling
#'''George Khazanov:''' The Electrostatic Potential Jumps Over the Sunlit Polar Cap Region
#'''Invited: Katie Garcia-Sage:''' title tbd
#'''Invited: Matina Gkioulidou:''' O+ circulation within the M-I coupled system
#'''Matthew Huddleston:''' Ion Trajectories Connecting the Ionosphere to the Magnetosphere
#additional participants welcome! you are welcome to add your contribution here or to email barbara.giles@nasa.gov and rick.chappell@vanderbilt.edu
 

==== [FG] MAPS ====

Location: New Mexico

General substorm session
* '''Kyle Murphy''' Tracking pre-onset aurora
* '''Toshi Nishimura''' Tracking pre-onset aurora
* '''Bea Gallardo-Lacourt (by Murphy)''' Tracking pre-onset aurora
* '''Jiang Liu''' Ionosphere flows during substorms
* '''Larry Lyons''' Substorm precursors and expansion phase activity
* '''Nithin Sivadas''' Energetic electron precipitation
 

==== [Joint] UMEA/DAYS/IHMIC ====

Location: Santa Fe

The ULF response to dayside transients with different temporal/spatial scales and asymmetries

* Tom Elsden - ''Session introduction and goals''

* Ferdinand Plaschke - ''An overview of dayside transients causing ULF waves''

* Tom Elsden - ''3D ULF wave modeling with MHD''

* Boyi Wang - ''The role of magnetosheath high-speed jets in triggering magnetospheric Pc5 ULF waves''

* Bob Lysak - ''Ionospheric asymmetries and quarter-wave modes''

* Xueling Shi - ''Conjugate Observations of ULF Waves during an Extended Period of Radial IMF''

* Michael Hartinger - ''Localized magnetopause surface wave activity and modeling challenges''

* Discussion

=== 1200 - 1230: URM Event ===

Location: New Mexico

=== 1330-1500: Splinter Sessions ===

==== [FG] M3-I2 ====

Location: Lumpkins Ballroom North

*Chair: Rick Chappell -- Scribe: Barbara Giles
#'''Invited: Andrew Yau: e-POP Ion Composition Observations of Topside Ion Upflows: Storm Challenge Events 1 and 2 and Statistical Study of Other Storms in 2014-2017
#'''Invited: Katie Garcia-Sage:''' Outflow Validation and Challenges
#'''Barbara Giles:''' Access to Polar TIDE outflow data base, new tools, new data products
#'''Rick Chappell:''' Summary of Progess:
#'''Discussion on the Storm Challenges
#Additional participants welcome! Email barbara.giles@nasa.gov and rick.chappell@vanderbilt.edu

==== [Joint] DAYS/BSH ====

Location: Lumpkins Ballroom South

* Andrew Dimmock - ''Introduction''

* Ian Cohen - ''High-resolution measurements of the cross-shock potential, ion reflection, and electron heating at an interplanetary shock by MMS''

* Xin An - ''Formation of foreshock transients and associated secondary shocks''

* Yann Pfau-Kempf - ''Transmission of foreshock ULF waves to the magnetosheath''

* Misha Balikhin - ''Nonstationarity of the quasi-perpendicular bow shock''

* Heli Hietala - ''Global 3D hybrid simulations of magnetosheath jets''

* Terry Liu - ''Statistical study of magnetosheath jet-driven bow waves''

==== [FG] DIP ====

'''Location: New Mexico'''
 Point-of-contact: Christine Gabrielse (cgabrielse@ucla.edu)
 Co-chairs: Matina Gkioulidou, David Malaspina

'''Topic: Energy Transfer and Dissipation'''
* '''Xiangning Chu''' - The generation of STEVE and penetration of fast flows to the plasmapause
* '''Misha Sitnov''' - Kinetic dissipation in dipolarization fronts and magnetic reconnection
* '''Rumi Nakamura''' - MMS observations of multi-scale field-aligned currents during dipolarization in the near-Earth plasma sheet
* '''Amy Keesee''' - Concurrent enhancements in ion temperatures and auroral brightenings seen by TWINS and ASIs
* '''Joachim Birn''' - Energy release and conversion and dynamo action in the tail on the basis of MHD simulation 
* '''Shin Ohtani''' - Dissipation and the ionosphere

* '''Discussion on energy dissipation'''
** Can we estimate a percentage that energy is dissipated into waves, direct ion heating, etc.?
** Can we determine if and to what extent a dynamo in the transition region (driven by pressure gradients or vorticity) converts energy dissipated from the tail into field aligned currents to drive dissipation in the ionosphere?
** What are the ways to estimate these values (simulation or theory or observational)?
 
 
 

=== 1530-1700: Splinter Sessions ===

==== [FG] DIP ====

'''Location: Lumpkins Ballroom North'''
 Point-of-contact: Christine Gabrielse (cgabrielse@ucla.edu)
 Co-chairs: Matina Gkioulidou, David Malaspina

'''Topic: Currents and Focus Group Discussion'''
* '''Continue discussion from previous session (limit to 30 min)'''
* '''Misha Sitnov''' - Dipolarizations and their connection to the ring current buildup and magnetic reconnection
* '''Shin Ohtani''' - Double-wedge current system based on the GOES-RBSP comparison of dipolarization signatures
* '''Yi-Hsin Liu''' - An explanation of the opposite dawn-dusk asymmetry at magnetotails of Earth vs. Mercury
* '''Olivier Le Contel(?)''' - Quasi-parallel ion flow and energetic particles in PSBL indicating acceleration region farther downtail 

* '''Continue discussion from previous sessions'''
** Updates from mini-GEM discussion?
** Future planning: Community Input
 
 
 

==== [Joint] UMEA/IEMIT ====

Location: Lumpkins Ballroom South

ULF wave modeling challenges associated with M-I-T Coupling

# (Invited) Boyi Wang: Ionospheric modulation by Pc5 ULF waves and wave structure detected by PFISR
# (Invited) Xiaojia Zhang / Anton Artemyev: ULF modulation of VLF waves and precipitation
# Doga Ozturk: Update from GEM/CEDAR joint session, PFISR E/ground magnetometer comparisons
# Anatoly Streltsov: ULF waves generated by the MI interactions near the plasmapause
# Mergen Aligabetov: ULF waves observed in space and on the ground at high and low latitudes
# Mark Engebretson: Multi-Instrument Observations of Nighttime Impulsive Magnetic Events
# Bob Lysak: Modeling ionospheric conductance and ground magnetic fields
# Yan Song: ULF wave, M-I coupling and Auroral formation.

==== [Joint] MMS: Bowshock ====

Location: New Mexico

==== [Joint] MMS: Inner M'sphere ====

Location: Santa Fe

== Thursday, June 27 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

* '''RA MPS Tutorial''': ''A. Runov''

* '''RA IMAG Tutorial''': ''H. Zhao''

* '''Mission/Modeling''': ''M. Gkioulidou, T. Nishimura''

=== 1030-1200: Splinter Sessions ===

==== [FG] Rx ====
Local and Kinetic Physics of Reconnection 
Location: Lumpkins Ballroom 
1. Anton Artemyev – MMS, Artemis and optic observations of the magnetotail reconnection 
2. Misha Sitnov – Global context of magnetotail reconnection and the global topology of the magnetic field during the July 11 2017 EDR event. 
3. Narges Ahmadi – Turbulence in magnetotail reconnection 
4. Chih-Ping Wang – Simultaneous earthward and tailward busty flows observed by the two ARTEMIS in mid-tail (60 Re) and comparisons with PIC simulations. 
5. Chris Bard - Hall MHD effects on tail reconnection for a Earth-like, miniature magnetosphere. 
6. Olivier Le Contel - Electron holes in the plasma sheet - related to reconnection? 

==== [Joint] UMEA/RB ====

Location: New Mexico

EMIC waves

*Robert Allen, Outer magnetospheric EMIC wave source regions characterized by Cluster
*Sarah Vines, EMIC waves in the outer magnetosphere: Observations of an off-equator source region
*Justin Lee, EMIC wave observations by MMS
*Chao Yue, The relationship between EMIC wave properties and proton distributions based on Van Allen Probes observations
*Kristine Sigsbee, Simultaneous EMIC Wave Observations During a Van Allen Probes Conjunction
*Hyomin Kim, Observations of Particle Loss due to Injection-Associated EMIC Waves
*Yuri Shprits, Dips in PSD and how they are related to EMIC wave scattering
*Richard Denton, Electromagnetic ion cyclotron waves in the dipole magnetosphere and pitch angle scattering of sub-MeV relativistic electrons by those waves
*Qianli Ma, Pitch angle scattering of radiation belt electrons due to statistical EMIC wave spectra

==== SPEDAS ====

Location: Santa Fe

=== 1330-1500: Splinter Sessions ===

==== [Joint] MAPS/DIP ====

Location: Lumpkins Ballroom North

Amy Keese - Twins observations of the inner magnetosphere during storms
Allison Jaynes - The effects of substorms on the inner magnetosphere
Andrei Runov - Do dipolarization contribute to ring current formation during storms?
Sam Bingham - Evolution of inner magnetospheric plasma during CME and CIR driven storms
Grant Stephens (by Misha Sitnov) - Emperical modelling of tail current systems
John Dorelli - Reconnection onset and bursty bulk flow (SWMF)
Anna DeJong - Defining intervals of steady magnetospheric convection

==== [Joint] RX/DAYS ====

Location: Lumpkins Ballroom South 
1. Katariina Nykyri – High latitude diamagnetic cavities 
2. Andrew Dimmock – The SMILE SXI instrument: a global imager for solar wind – dayside interactions 
3. Brian Walsh – Cubesat mission to study magnetic reconnection 
4. Xuanye Ma – Compairson between fluid simulations with test particles and hybrid simulations of the Kelvin-Helmholtz instability 
5. Karlheinz Trattner – Elongated Dayside X-lines 
6. Marcos Sylveira - Flux transfer events observed in the dayside magnetopause by MMS mission. 

==== [FG] UMEA ====

Location: New Mexico

Recent advances in ULF wave research: Observations

*Matina Gkioulidou/Seth Claudepierre, RBSP HGSO coordination
*Sarah Vines, Determining EMIC wave vector properties through multi-point measurements: The wave curl analysis
*Larry Kepko, Solar wind driven ULF waves
*Aaron Breneman, BARREL precipitation during solar wind driven ULF wave events
*Anatoly Streltsov, Effect of the Hall Conductivity on the generation of ULF waves
*Mohammad Barani, Estimating the Azimuthal Mode Structure of ULF Waves Based on Multiple GOES Satellite Observations
*Kazue Takahashi, L versus time structures of ground magnetic pulsations
*Chih-Ping Wang, Earthward propagation of Pi2 waves

=== 1530-1700: Splinter Sessions ===

==== [FG] TAIL ====

Location: Lumpkins Ballroom North

1.'''Anton Artemyev,''' Multicomponent ion population in the magnetotail

2. '''Sasha Lukin (presented by Anton),''' Plasma populations around the distant equatorial magnetopause: indication on selective mechanism of ion and electron transport

2. '''Olivier Le Contel,''' MMS/cluster joint observations during PSBL crossings

3. '''Jiang Liu,''' Field-aligned current carriers in the magnetotail

4. '''Steve Xu,''' Statistics of current sheets at lunar distance

5. '''San Lu,''' Reconnection in polarized thin current sheet

6. '''Chih-Ping Wang,''' Firehose instability within the recoonection exhaust observed in mid-tail

==== [FG] UMEA ====

Location: Lumpkins Ballroom South

ULF waves driven by wave-particle interactions and instabilities

*Xuzhi Zhou, Acceleration of relativistic electrons by global-scale ULF waves
*Tomotsugu Yamakawa, Simulation of the excitation of storm-time Pc5 ULF waves by ring current ions based on the drift-kinetic model
*Frank Toffoletto, Buoyancy Waves (TBD)
*Peter Chi, Observations of High-m Poloidal Waves along Magnetospheric Field Lines
*Mike Hartinger, Observations of wave-particle interactions using MagEIS ultra-high resolution energy channels
*Jiang Liu, Ultralow Frequency Waves Deep Inside the Inner Magnetosphere Driven by Dipolarizing Flux Bundles, and their interaction with electrons

==== [Joint] MMS: SPEDAS ====

Location: New Mexico

==== [Joint] DAYS/MMV ====

Location: Santa Fe

* Heli Hietala - ''Challenge progress summary''

* Sarah Vines - ''MMS observations during southward IMF: recap and update''

* Karlheinz Trattner - ''Maximum shear model results''

* Zhifang Guo - ''Global 3D hybrid simulation results''

* Marcos Silveira - Magnetopause transients seen in the challenge event: MMS vs MHD-EPIC comparison

* Discussion - including Special Issue manuscript coordination

=== 1700-2000: Poster Session ===

Please visit the [https://gemworkshop.org/pages/gem2019/2019_GEM_poster_0613.pdf Poster Information] page for details.

== Friday, June 28 ==

=== 0830-1000: Plenary Session ===

Location: Lumpkins Ballroom

* '''Students Awards, Student Invited Tutorial''': ''M. Argall''

* '''Mission/Modeling''': ''J. Sample''

=== 1030-1200: Splinter Sessions ===

==== [FG] TAIL ====

Location: Lumpkins Ballroom

This is the final year for Tail Environment FG, we will summary the major findings from this FG. We will discuss how we will proceed to maintain the discussion platform for the magnetotail physics in GEM community, including a proposal for a new FG.

==== [FG] RB ====

Location: New Mexico

1. General Contributions: Inner Belt and Slot Region

Xinlin Li: Source and Loss of Inner Belt Protons (10s of MeV) and Their Solar Cycle Variations Based on Multi-Point Measurements and Analysis

Zheng Xiang: On Trapped Electron Dynamics in Earth's Inner Radiation Belt due to Atmospheric Scattering Loss and Cosmic Ray Albedo Neutron Decay (CRAND) as the Source

Man Hua: Modeling Electron Acceleration and Butterfly Pitch Angle Distributions in the Earth's Inner Radiation Belt and Slot Region

Questions and Discussions

2. General Contributions: Radiation Belt Waves

Dave Hartley: The Angular Distribution of Chorus Waves and the Role of Plumes in the Chorus-to-Hiss Mechanism

Xin An: Nonlinear Wave Structures Driven by Whistler Waves

Shangchun Teng: Typical Characteristics of Whistler Mode Waves Categorized by Their Spectral Properties Using Van Allen Probes Observations

Ivan Vasko: Electrostatic Steepening of Whistler Waves in the Radiation Belts

Jinxing Li: Origin of two-band chorus waves in the Earth’s outer radiation belt

Homayon Aryan: Discrete Equatorial Magnetosonic Waves Observed by Cluster

Oleksiy Agapitov: TBD

Questions and Discussions

3. General Contributions: Radiation Belt Modeling

Anthony Chan: A New Technique for Radiation Belt Modeling: Theory

Scot Elkington: A New Technique for Radiation Belt Modeling: Results

Yihua Zheng: Model Validation

Liheng Zheng: Drift shell bifurcation effects on radiation belt electrons modeled by Markov chain

Questions and Discussions

2018 GEM Workshop and GEM-CEDAR Joint Workshop

2018-06-16T18:42:05Z

Kylemurphy: /* [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms */

'''Detailed Schedule'''

Below is a detailed session schedule with names of tentative speakers provided by Focus Group Leaders and Research Area Coordinators. The information here serves as a rough guide for those who wish to know the most updated session plans. Due to the dynamic nature of the Workshop, Focus Groups may continue to revise their agenda as needed.

All other information about the 2018 GEM Summer Workshop can be found at the [http://www.cpe.vt.edu/gem/index.html GEM Workshop Coordinator site].

== Monday, June 18 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Opening and welcome''': ''Jacob Bortnik'' (15 min)

* '''SWMI panel''': ''Katariina Nykyri'' (moderator), ''Bob McPherron, Vassilis Angelopoulos, Toshi Nishimura, Jay Johnson, Heli Hietala'' (45 min)

* '''Mission talks''': RBSP - ''Sasha Ukhorskiy''; THEMIS - ''Vassilis Angelopoulos''; MMS - ''Li-Jen Chen/Rick Wilder''; NSF Ground-based - ''Mark Engebretson/Eftyhia Zesta'' (30 min)

=== 1030-1200: Splinter Sessions ===

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [Joint] ULF wave Modeling, Effects, and Applications + Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====
'''ULF waves during particle injections and dipolarizations'''
This session focuses on the relationship between particle injections/dipolarizations and Pc4-5/Pi2/EMIC waves - e.g., Why are waves driven in only some events? Do waves impact the ring current/radiation belts?

*1. Discussion of Session Topic

*2. Bob Lysak -- Ionospheric Conductivity Effects on Pi2 Pulsations

*3. Mike Hartinger -- Pi2 waves during an extended period with stable plasmapause location and variable geomagnetic activity

*4. Toshi Nishimura -- Ionosphere observations of Pc5 ULF waves during 2018 HGSO conjunctions

*5. Xueling Shi -- Long-lasting poloidal ULF waves observed by multiple satellite and SuperDARN HF radars

*6. Jian Yang -- New RCM-I simulation results for buoyancy waves

*7. Dick Wolf -- Theory of Buoyancy Waves

*8. Yan Song -- What Causes the Substorm Expansion Phase and Associated ULF Waves?

=== 1330-1500: Splinter Sessions ===

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

This session will focus on observations of the challenge events, discussion of steady magnetospheric convection, storm-time substorms, and isolated substorms and their effects on the inner magnetosphere.

* 1. Introduction to Event Studies: [http://gem.epss.ucla.edu/mediawikiwiki/images/5/59/GEM_2018_DipolarizationSubstorm_ChallengeEvents.pdf Challenge Events]
* 2. Christine Gabrielse (Riometers/THEMIS)
* 3. Toshi Nishimura (ASI)
* 4. Drew Turner (MMS, Van Allen)
* 5. Amy Keese (Twins)
* 6. Lauren Blum (Van Allen, EMIC)
* 7. Colin Komar (SWMF)
* 8. Kyle Murphy (LANL, ULF, SuperDARN)

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''Recent advances in ULF wave research'''

*1. Overview of focus group goals and recent progress

*2. Brief ULF wave poster overviews (Tuesday posters)

*3. Kazue Takahashi -- Observation of nightside ULF waves by RBSP and Arase

*4. Tom Elsden -- Broadband Excitation of 3D Alfven Resonances (FLRs) in an MHD Waveguide

*5. Boyi Wang -- 2-D structure of foreshock driven Pc5 ULF waves observed by the THEMIS satellites and South Pole imager

*6. Xiaochen Shen -- Foreshock transient-driven ultra-low frequency (ULF) waves with dawn-dusk asymmetry of wave power

*7. Chih-Ping Wang -- ULF waves possibly driven by tailward propagation of foreshock perturbations

*8. Allison Jaynes -- Fast diffusion of ultra-relativistic electrons in the outer radiation belt: 17 March 2015 storm event

*9. Rualdo Soto -- The Drift-Mirror instability in Earth's inner magnetosphere

*10. Martin Archer/Mike Hartinger -- Results from Sonification and Citizen Science of Magnetospheric ULF waves

=== 1530-1700: Splinter Sessions ===

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''EMIC wave generation, propagation, and interactions''': Discussion leaders Alexander Drozdov and Maria Usanova

The generation mechanisms of EMIC waves, their effects on trapped particles, and their propagation through the M-I system are challenging topics that involve multiple GEM research areas. Despite several years of observations and improved global wave statistics, there are many unresolved questions that limit further investigation, modeling and prediction of processes in the inner magnetosphere involving EMIC waves. This session includes presentations and discussion that unites recent findings in different areas of EMIC wave research and identifies observations/models most needed to address unresolved questions.

*1. Dedong Wang -- EMIC wave observations from Van Allen Probes and MMS

*2. Mark Engebretson -- MMS, Van Allen Probes, and ground based magnetometer observations of EMIC waves associated with a modest interplanetary shock

*3. Maria Usanova -- MMS Observations of Harmonic Electromagnetic Cyclotron Waves

*4. Naritoshi Kitamura -- Direct measurements of energy transfer from hot H+ to EMIC waves by MMS

*5. Bruce Fritz -- ELF Whistler Dependence on a Sunlit Ionosphere

*6. Chae-Woo Jun -- EMIC waves associated with/without the injection inside/outside the plasmapause

*7. Hyomin Kim -- Injection-associated EMIC waves

*8. Sebastian Cervantes -- EMIC wave parameterization in radiation belt reanalysis

*9. Maria Usanova -- Long-term correlation of EMIC wave activity and radiation belt flux variations

*10. Alexander Drozdov -- The effects due to the EMIC waves in the VERB code modeling

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

This session will summarize the previous sessions presentations and will discuss new observations and modelling regarding tail dyanmics, substorms, dipolarizations and their effects on magnetosphere.

* 1. Summary of previous session and event studies
* 2. Sarah Vines - AMPERE
* 3. Grant Stephens - Empirical field model
* 4. Slava Merkin - Coupling global MHD and empirical field model
* 5. Sasha Ukhorskiy - LFM Chimp
* 6. Bea Gallardo-Lacourt
* 7. Shin Ohtani - PBIs

=== 1730-1830: Plenary Session ===

== Tuesday, June 19 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''MPS tutorial''': ''Slava Merkin''

* '''GSM tutorial''': ''Li-Jen Chen''

=== 1030-1200: Splinter Sessions ===

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
Inner magnetosphere-ionosphere coupling
*Harneet Sangha: The Field-Aligned Current Structure Associated with Sub-Auroral Polarization Streams
*Bea Gallardo-Lacourt: STEVE: An optical structure in the subauroral region. Location and geomagnetic conditions during its formation
*Yiqun Yu: Self-consistent modeling of magnetosphereic precipitation and response in the ionosphere
*Nithin Sivadas: Energetic precipitation during substorms: simultaneously measured in the magnetosphere and ionosphere
*Xiangning Chu: Unexpected storm-time plasmaspheric density increase at low L shells on the nightside

=== 1330-1500: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
particle and wave dynamics
*Yue Chao：Oxygen ion behavior in Earth’s ring current dynamics based on Van Allen Probes observations
*Mykhaylo Shumko: Evidence of Microbursts Observed Near the Equatorial Plane in the Outer Van Allen Radiation Belt
*Run Shi: Properties of whistler mode waves in plasmasphere and plasmaspheric plume
*Qianli Ma: Ion Heating by Electromagnetic Ion Cyclotron Waves in the Inner Magnetosphere’
*Sam Bingham: The development of source electrons and chorus wave activity during CME and CIR storms
*Poorya Hosseini: TBD

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Christine Gabrielse, Drew Turner, David Malaspina, Matina Gkioulidou, Slava Merkin

We will have a panel discussion on the questions below with an aim to communicate different types of models' capabilities to answer different science questions, as well as a discussion on how we can move forward towards improved, data-informed models. We invite the audience to participate in the discussion and to provide input as to how we, as a field, can move forward to better understand how dipolarizations affect the inner magnetosphere, and/or how they are affected by the coupled magnetosphere-ionosphere system.

'''Panelists''' 
Misha Sitnov 
San Lu 
Jimmy Raeder 
Yann Kempf 
Colby Lemon 
Katie Garcia-Sage 

'''Panel Questions'''

1) Given our current modeling capabilities, discuss which kinds of models are best at capturing which aspects of dipolarization events and their effects in the magnetosphere.

2) What determines the dipolarization scale size in different models? (e.g., physical description, boundary conditions, model input parameters, ionosphere conditions, etc.?)

3) The transition region is where both inertia and energy dependent drifts are important. No existing models treat that region correctly.
(a) How do we move forward?

(b) Or, more specifically, address the question of dipolarization front deceleration:
(i) How do various models treat dipolarization deceleration as they approach the inner magnetosphere?
(ii) What processes are decelerating the fronts in the models?
(iii) What inner magnetosphere processes are missing (e.g. plasmasphere, complex ionospheric conductivity models) and does excluding these processes lead to different deceleration predictions?

(c) And/or address:
(i) What are the relative roles of ExB, energy-dependent drifts and particle trapping in transport and energization in the transition region?
(ii) To what extent are these processes adiabatic for particles of different energies?
(iii) What is their overall contribution to the ring current build up?

Although the questions are focusing on dipolarization implementation into the current magnetospheric models, participation of data analysts is highly desired and encouraged in order to establish an observational framework for the models.

=== 1530-1700: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
*Report on the spacecraft charging challenge
*We will have a panel discussion on remaining scientific questions in the coupled inner magnetosphere system and on future plans regarding how we will continue and move forward to better understand the cross-energy/population coupling processes and interactions with tail and ionosphere. We also cordially invite the audience to participate and contribute.

*Panelist: Mike Liemohn, Vania Jordanova, George Khazanov, Yihua Zheng

==== [Joint] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction + Modeling Methods and Validation ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Drew Turner, Christine Gabrielse, David Malaspina, Slava Merkin, Matina Gkioulidou

This is an informal, workshop-style session that we opened up to contributed slides in order to provide the community a mouthpiece to focus on any brand new results, outstanding challenges, and/or outstanding questions concerning the research.

Although we provide the list of speakers, we point out that some of them may present during our panel-led discussion at 1:30.

'''Speakers ------------------- Topics (~5 min)''' 
1. Chih-Ping Wang ------- RCM results of bubbles 
2. Jiang Liu ----------------- R1/R2 currents as a collective result of very intense and localized FACs in the tail 
3. Brian Swiger ----------- ~keV electron enhancements in the tail from THEMIS, correlation to AE 
4. Andrei Runov (?) ------ Comparing injections at THEMIS with LANL 
5. Sasha Ukhorskiy ------- Ion acceleration and transport from the tail to the inner magnetosphere, the effects of trapping, adiabaticity, and the role of charge 
6. Anton Artemyev -------- Particle energization: adiabatic vs. nonadiabatic 
7. Xiangnig Chu ----------- Broadband waves on the dipolarization front in the inner magnetosphere 
8. Shin Ohtani ------------- Statistical study of two-point measurements of dipolarization and the result shows earthward propagation 
9. Ryan Dewey ------------ Dipolarization effects at Mercury and comparisons to Earth 

=== 1800-2100: Posters ===

== Wednesday, June 20 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''IMAG tutorial''': ''Harlan Spence''

* '''Student invited tutorial''': ''David Sibeck''

=== 1030-1200: Splinter Sessions ===

==== [Joint] ULF wave Modeling, Effects, and Applications + Modeling Methods and Validation ====
'''ULF wave modeling challenge'''

Overview of the ULF wave modeling challenge, including discussion of the ULF wave challenge event on 27-28 May 2017 (http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_ULF_Wave_Modeling%2C_Effects%2C_and_Applications) and coordinated analysis aimed at identifying additional science targets for the modeling challenge.

*1. Brief ULF wave poster overviews (Thursday posters)

*2. Mike Hartinger: ULF wave modeling challenge event overview, discussion of challenge targets (continuing during session)

*3. Mariko Teramoto: ARASE ULF wave observations during challenge event

*4. Sam Califf: GOES-14 and 16 observations during the ULF wave challenge event, Data Discussion

*5. Toshi Nishimura: PFISR measurements of the 27-28 May 2017 ULF waves

*6. Dogacan Su Ozturk: The modeling study of the 27 March 2017 Event

*7. Xiaochen Shen: GEM Challenge Event: ULF wave-related electron and proton precipitation/negative dynamic pressure pulse driven EMIC wave

*8. Others discuss when their figures/summary plots in event overview pdf are presented…

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Geospace Systems Science ====

“Progress in Systems Science”. This session will be comprised of short oral presentations highlighting this year’s progress. Speakers will include

1. Brian Walsh
Topic: on solar wind propagation and uncertainties
2. Misha Sitnov
Topic: on data-mining efforts in empirical reconstruction of substorms
3. Alexander Lipatov
“Effects of transmitted interplanetary impulse interaction with plasmaspheric plume. First results from 3-D hybrid kinetic modeling”
4. Shin Ohtani
TBA
5. Lynn Kistler
Topic: the sawtooth project
6. Katariina Nykyri
TBA
7. Joe Borovsky
“A Composite Index of Magnetospheric Activity”

=== 1330-1500: Splinter Sessions ===

==== [FG] Modeling Methods and Validation ====
This session will include talks on general validation topics, followed by a discussion of validation at GEM.

- Mike Liemohn: ILWS-CCMC “metrics for modeling geomagnetic indices” 
- Adam Kellerman: "Application Usability Levels: A framework for objectively measuring a projects progress towards specific applications.” 
and: "Verification of the UCLA real-time data assimilative VERB code over the 2016-2018 period of operation." 
- Lutz Rastaetter: New visualizations and metrics 
- Misha Sitnov: “Global MHD validation of substorms and implications for kinetic simulations” 
- Nathaniel Frissell: "Modeling Amateur Radio Soundings of the Ionospheric Response to the 2017 Great American Eclipse" 
- MM&V Co-chairs (presented by Katherine Garcia-Sage): GEM Validation - Issues and Ideas 

Following the speakers, we will have a discussion on ideas and issues for organizing validation at GEM.

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''1.''' '''Robert Allen''': Cassini observations of the distant magnetotail and sheath

'''2.''' '''Lin Yu et al. (presented by Jay Johnson)''': Global hybrid simulation and THEMIS and DMSP observations

'''3.''' '''Joachim Birn''': Current diversion and energy flow and conversion associated with the substorm current wedge

'''4.''' '''Jiang Liu''': Field-aligned currents from Swarm

'''5.''' '''Xiaochen Shen''': Kelvin-Helmholtz waves in mid-tail

'''6.''' '''San Lu''': PIC simulation result on the magnetotail dawn-dusk asymmetry

'''7.''' '''Anton Artemyev''': 3D picture of thin current sheet formation

'''8.''' '''Andrei Runov''': Current sheet structure at lunar distances

'''9.''' '''Chih-Ping Wang''': Update on mid-tail dynamics observed by ARTEMIS

==== [FG] Geospace Systems Science ====

“Geospace Systems Science: Looking Ahead”. This is the final (5th-year) session of the GSS Focus Group. This session will be an audience discussion to assess the systems-science approach to understanding geospace and to consider new ideas for the future.

=== 1530-1700: Splinter Sessions ===

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''Modeling challenge:''' We will discuss candidate events for next modeling challenge

'''Candidate events:'''

'''1. Magnetotail length during N IMF:''' 2010-10-22, Two ARTEMIS tail conjunction

'''2. Impact of small solar wind dynamic pressure on the magnetotail:''' 2017-09-06, Geotail-ARTEMIS midnight conjunction

'''3. Magnetotail response to transition from N IMF to S IMF: 2017-07-09:''' GOES-Geotail-MMS-ARTEMIS midnight conjunction

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Weichao Tu and Steve Morley''

'''1. Mary Hudson (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Enhancements

'''2. Alex Boyd''': What Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era

'''3. Hong Zhao''': Effects of Solar Wind and Magnetospheric Processes on the Ultra-Relativistic Electron Acceleration in the Outer Radiation Belt

'''4. Adam Kellerman''': Quantitative analysis of the radiation-belt electron phase-space-density response to stream-interaction regions utilizing the data-assimilative VERB code

'''5. Zhao Li''': Relativistic electron advection during CME-shock driven storms

'''6. Leng Ying Khoo''': On the Initial Enhancements of Energetic Electrons and the Innermost Plasmapause Locations During Storm Periods

'''7. Dedong Wang''': VERB Simulation for GEM Challenge Events

'''8. Ivan Vasko''': Electrostatic Steepening of Whistler Waves

'''9. Anton Artemyev''': Electron nonlinear resonant interaction with short and intense parallel chorus wave-packets

'''10. (walk-in) Scot Elkington''': Test Particle/SDE Simulations of a Stormtime Enhancement Event

'''11. (walk-in) Xiaojia Zhang''': Properties of intense field-aligned lower-band chorus waves: implications for nonlinear wave-particle interactions

==== [Joint] Magnetic Reconnection in the Age of the Heliophysics System Observatory + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

== Thursday, June 21 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

'''Agency reports:'''
* NSF - ''Carrie Black, Mike Wiltberger''
* NOAA - ''Howard Singer''
* NASA - ''Jim Spann''
* Air Force - ''James McCollough''
* LPAG - ''Matina Gkioulidou et al.''

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Jay Albert and Wen Li''

'''1. Sasha Ukhorskiy (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Dropouts

'''2. Seth Claudepierre''': Empirical estimates of electron lifetimes in the radiation belts

'''3. Zheng Xiang''': A statistical survey of radiation belt dropouts observed by Van Allen Probes

'''4. Joe Borovsky''': MeV-Electron Dropouts without MeV-Proton Dropouts

'''5. Luisa Capannolo''': Understanding the driver of energetic electron precipitation using coordinated multi-satellite measurements (24 September 2013 Challenge Event)

'''6. Mark Engebretson''': EMIC wave events during the four GEM QARBM challenge intervals

'''7. Armando Maldonado''': On the diffusion rates of electron bounce resonant scattering by magnetosonic waves

'''8. Oleksiy Agapitov''': Chorus-microburst relations and the corresponding scaling

'''9. Alexander Drozdov''': Modeling of a non-storm dropout event

'''10. (walk-in) Robyn Millan''': Newly selected REAL CubeSat Mission

'''11. (walk-in) Poorya Hosseini''': Whistler wave-particle interaction in the Earth's radiation belts

==== Ground Magnetometer Array Group ====

=== 1330-1500: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== SPEDAS Demo and Tutorial (General/New Users) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] Modeling Methods and Validation: Conductance Challenge Session ====

- Geoff Crowley 
- Slides from Steve Kaeppler 
- Slides from Ryan McGranaghan 
- George Khazanov 
- Margaret Chen 
- Agnit Mukhopadhyay 

The goal for this session is to discuss data/model results from the specific challenge days, as well as data/model parameters, uncertainties, assumptions, and boundary conditions, with an eye toward making comparisons for these events (including model-model, data-data, and model-data comparisons).

After the speakers, we’ll determine whether there is anyone else who we need to get involved in the challenge events and identify next steps for making comparisons and moving the challenge forward.

'''Challenge events:''' 
#1 2016 Oct 13-15 
#2 2013 March 17 
'''Bonus storms (selected by the CCMC Space Weather Capabilities Auroral Assessment team):''' 
#3 2015 Jun 21-24 
#4 2012 March 9 

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Steve Morley and Jay Albert''

'''1. Steve Morley''': Summary of RB Enhancement and Dropout Challenges

'''2. Lauren Blum''': Newly selected CubeSat mission at GTO orbit

'''3. Xinlin Li''': Newly selected CubeSat: Inner Radiation Belt Experiment (CIRBE)

'''4. James McCollough''': Update on DSX Mission

'''5. Panel Discussions''': Remaining Open Questions and Future Directions of Radiation Belt Studies

'''Panelists: Jacob Bortnik, Allison Jaynes, Wen Li, Geoff Reeves, and Drew Turner'''

=== 1800-2100: Posters ===

== Friday, June 22 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Student poster awards & Jacob poll results''' (30 min)

* '''MIC panel''': ''Shin Ohtani'' (moderator), ''Brian Anderson, Bill Bristow, Bob Lysak, Peter Chi, Bill Lotko'' (1 hour)

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

=== 1330-1500: Splinter Sessions ===

==== [Joint] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) + Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

==== SPEDAS Demo and Tutorial (Analyzing MMS data with SPEDAS) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) ====

== Saturday, June 23 ==

'''GEM-CEDAR Joint Workshop'''

=== 0830-1000: Multiscale aspects of the energy budget ===

=== 1030-1200: Interhemispheric processes, hemispheric symmetries & asymmetries ===

=== 1330-1500: What is needed to make progress? ===

=== 1530-1700: Data science in Geospace ===

2018 GEM Workshop and GEM-CEDAR Joint Workshop

2018-06-16T18:39:39Z

Kylemurphy: /* [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms */

'''Detailed Schedule'''

Below is a detailed session schedule with names of tentative speakers provided by Focus Group Leaders and Research Area Coordinators. The information here serves as a rough guide for those who wish to know the most updated session plans. Due to the dynamic nature of the Workshop, Focus Groups may continue to revise their agenda as needed.

All other information about the 2018 GEM Summer Workshop can be found at the [http://www.cpe.vt.edu/gem/index.html GEM Workshop Coordinator site].

== Monday, June 18 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Opening and welcome''': ''Jacob Bortnik'' (15 min)

* '''SWMI panel''': ''Katariina Nykyri'' (moderator), ''Bob McPherron, Vassilis Angelopoulos, Toshi Nishimura, Jay Johnson, Heli Hietala'' (45 min)

* '''Mission talks''': RBSP - ''Sasha Ukhorskiy''; THEMIS - ''Vassilis Angelopoulos''; MMS - ''Li-Jen Chen/Rick Wilder''; NSF Ground-based - ''Mark Engebretson/Eftyhia Zesta'' (30 min)

=== 1030-1200: Splinter Sessions ===

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [Joint] ULF wave Modeling, Effects, and Applications + Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====
'''ULF waves during particle injections and dipolarizations'''
This session focuses on the relationship between particle injections/dipolarizations and Pc4-5/Pi2/EMIC waves - e.g., Why are waves driven in only some events? Do waves impact the ring current/radiation belts?

*1. Discussion of Session Topic

*2. Bob Lysak -- Ionospheric Conductivity Effects on Pi2 Pulsations

*3. Mike Hartinger -- Pi2 waves during an extended period with stable plasmapause location and variable geomagnetic activity

*4. Toshi Nishimura -- Ionosphere observations of Pc5 ULF waves during 2018 HGSO conjunctions

*5. Xueling Shi -- Long-lasting poloidal ULF waves observed by multiple satellite and SuperDARN HF radars

*6. Jian Yang -- New RCM-I simulation results for buoyancy waves

*7. Dick Wolf -- Theory of Buoyancy Waves

*8. Yan Song -- What Causes the Substorm Expansion Phase and Associated ULF Waves?

=== 1330-1500: Splinter Sessions ===

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

This session will focus on observations of the challenge events, discussion of steady magnetospheric convection, storm-time substorms, and isolated substorms and their effects on the inner magnetosphere.

* 1. Introduction to Event Studies: [http://gem.epss.ucla.edu/mediawikiwiki/images/5/59/GEM_2018_DipolarizationSubstorm_ChallengeEvents.pdf Challenge Events]
* 2. Christine Gabrielse (Riometers/THEMIS)
* 3. Toshi Nishimura (ASI)
* 4. Drew Turner (MMS, Van Allen)
* 5. Amy Keese (Twins)
* 6. Lauren Blum (Van Allen, EMIC)
* 7. Colin Komar (SWMF)
* 8. Kyle Murphy (LANL, ULF, SuperDARN)

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''Recent advances in ULF wave research'''

*1. Overview of focus group goals and recent progress

*2. Brief ULF wave poster overviews (Tuesday posters)

*3. Kazue Takahashi -- Observation of nightside ULF waves by RBSP and Arase

*4. Tom Elsden -- Broadband Excitation of 3D Alfven Resonances (FLRs) in an MHD Waveguide

*5. Boyi Wang -- 2-D structure of foreshock driven Pc5 ULF waves observed by the THEMIS satellites and South Pole imager

*6. Xiaochen Shen -- Foreshock transient-driven ultra-low frequency (ULF) waves with dawn-dusk asymmetry of wave power

*7. Chih-Ping Wang -- ULF waves possibly driven by tailward propagation of foreshock perturbations

*8. Allison Jaynes -- Fast diffusion of ultra-relativistic electrons in the outer radiation belt: 17 March 2015 storm event

*9. Rualdo Soto -- The Drift-Mirror instability in Earth's inner magnetosphere

*10. Martin Archer/Mike Hartinger -- Results from Sonification and Citizen Science of Magnetospheric ULF waves

=== 1530-1700: Splinter Sessions ===

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''EMIC wave generation, propagation, and interactions''': Discussion leaders Alexander Drozdov and Maria Usanova

The generation mechanisms of EMIC waves, their effects on trapped particles, and their propagation through the M-I system are challenging topics that involve multiple GEM research areas. Despite several years of observations and improved global wave statistics, there are many unresolved questions that limit further investigation, modeling and prediction of processes in the inner magnetosphere involving EMIC waves. This session includes presentations and discussion that unites recent findings in different areas of EMIC wave research and identifies observations/models most needed to address unresolved questions.

*1. Dedong Wang -- EMIC wave observations from Van Allen Probes and MMS

*2. Mark Engebretson -- MMS, Van Allen Probes, and ground based magnetometer observations of EMIC waves associated with a modest interplanetary shock

*3. Maria Usanova -- MMS Observations of Harmonic Electromagnetic Cyclotron Waves

*4. Naritoshi Kitamura -- Direct measurements of energy transfer from hot H+ to EMIC waves by MMS

*5. Bruce Fritz -- ELF Whistler Dependence on a Sunlit Ionosphere

*6. Chae-Woo Jun -- EMIC waves associated with/without the injection inside/outside the plasmapause

*7. Hyomin Kim -- Injection-associated EMIC waves

*8. Sebastian Cervantes -- EMIC wave parameterization in radiation belt reanalysis

*9. Maria Usanova -- Long-term correlation of EMIC wave activity and radiation belt flux variations

*10. Alexander Drozdov -- The effects due to the EMIC waves in the VERB code modeling

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

* 1. Summary of previous session and event studies
* 2. Sarah Vines - AMPERE
* 3. Grant Stephens - Empirical field model
* 4. Slava Merkin - Coupling global MHD and empirical field model
* 5. Sasha Ukhorskiy - LFM Chimp
* 6. Bea Gallardo-Lacourt
* 7. Shin Ohtani - PBIs

=== 1730-1830: Plenary Session ===

== Tuesday, June 19 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''MPS tutorial''': ''Slava Merkin''

* '''GSM tutorial''': ''Li-Jen Chen''

=== 1030-1200: Splinter Sessions ===

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
Inner magnetosphere-ionosphere coupling
*Harneet Sangha: The Field-Aligned Current Structure Associated with Sub-Auroral Polarization Streams
*Bea Gallardo-Lacourt: STEVE: An optical structure in the subauroral region. Location and geomagnetic conditions during its formation
*Yiqun Yu: Self-consistent modeling of magnetosphereic precipitation and response in the ionosphere
*Nithin Sivadas: Energetic precipitation during substorms: simultaneously measured in the magnetosphere and ionosphere
*Xiangning Chu: Unexpected storm-time plasmaspheric density increase at low L shells on the nightside

=== 1330-1500: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
particle and wave dynamics
*Yue Chao：Oxygen ion behavior in Earth’s ring current dynamics based on Van Allen Probes observations
*Mykhaylo Shumko: Evidence of Microbursts Observed Near the Equatorial Plane in the Outer Van Allen Radiation Belt
*Run Shi: Properties of whistler mode waves in plasmasphere and plasmaspheric plume
*Qianli Ma: Ion Heating by Electromagnetic Ion Cyclotron Waves in the Inner Magnetosphere’
*Sam Bingham: The development of source electrons and chorus wave activity during CME and CIR storms
*Poorya Hosseini: TBD

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Christine Gabrielse, Drew Turner, David Malaspina, Matina Gkioulidou, Slava Merkin

We will have a panel discussion on the questions below with an aim to communicate different types of models' capabilities to answer different science questions, as well as a discussion on how we can move forward towards improved, data-informed models. We invite the audience to participate in the discussion and to provide input as to how we, as a field, can move forward to better understand how dipolarizations affect the inner magnetosphere, and/or how they are affected by the coupled magnetosphere-ionosphere system.

'''Panelists''' 
Misha Sitnov 
San Lu 
Jimmy Raeder 
Yann Kempf 
Colby Lemon 
Katie Garcia-Sage 

'''Panel Questions'''

1) Given our current modeling capabilities, discuss which kinds of models are best at capturing which aspects of dipolarization events and their effects in the magnetosphere.

2) What determines the dipolarization scale size in different models? (e.g., physical description, boundary conditions, model input parameters, ionosphere conditions, etc.?)

3) The transition region is where both inertia and energy dependent drifts are important. No existing models treat that region correctly.
(a) How do we move forward?

(b) Or, more specifically, address the question of dipolarization front deceleration:
(i) How do various models treat dipolarization deceleration as they approach the inner magnetosphere?
(ii) What processes are decelerating the fronts in the models?
(iii) What inner magnetosphere processes are missing (e.g. plasmasphere, complex ionospheric conductivity models) and does excluding these processes lead to different deceleration predictions?

(c) And/or address:
(i) What are the relative roles of ExB, energy-dependent drifts and particle trapping in transport and energization in the transition region?
(ii) To what extent are these processes adiabatic for particles of different energies?
(iii) What is their overall contribution to the ring current build up?

Although the questions are focusing on dipolarization implementation into the current magnetospheric models, participation of data analysts is highly desired and encouraged in order to establish an observational framework for the models.

=== 1530-1700: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
*Report on the spacecraft charging challenge
*We will have a panel discussion on remaining scientific questions in the coupled inner magnetosphere system and on future plans regarding how we will continue and move forward to better understand the cross-energy/population coupling processes and interactions with tail and ionosphere. We also cordially invite the audience to participate and contribute.

*Panelist: Mike Liemohn, Vania Jordanova, George Khazanov, Yihua Zheng

==== [Joint] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction + Modeling Methods and Validation ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Drew Turner, Christine Gabrielse, David Malaspina, Slava Merkin, Matina Gkioulidou

This is an informal, workshop-style session that we opened up to contributed slides in order to provide the community a mouthpiece to focus on any brand new results, outstanding challenges, and/or outstanding questions concerning the research.

Although we provide the list of speakers, we point out that some of them may present during our panel-led discussion at 1:30.

'''Speakers ------------------- Topics (~5 min)''' 
1. Chih-Ping Wang ------- RCM results of bubbles 
2. Jiang Liu ----------------- R1/R2 currents as a collective result of very intense and localized FACs in the tail 
3. Brian Swiger ----------- ~keV electron enhancements in the tail from THEMIS, correlation to AE 
4. Andrei Runov (?) ------ Comparing injections at THEMIS with LANL 
5. Sasha Ukhorskiy ------- Ion acceleration and transport from the tail to the inner magnetosphere, the effects of trapping, adiabaticity, and the role of charge 
6. Anton Artemyev -------- Particle energization: adiabatic vs. nonadiabatic 
7. Xiangnig Chu ----------- Broadband waves on the dipolarization front in the inner magnetosphere 
8. Shin Ohtani ------------- Statistical study of two-point measurements of dipolarization and the result shows earthward propagation 
9. Ryan Dewey ------------ Dipolarization effects at Mercury and comparisons to Earth 

=== 1800-2100: Posters ===

== Wednesday, June 20 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''IMAG tutorial''': ''Harlan Spence''

* '''Student invited tutorial''': ''David Sibeck''

=== 1030-1200: Splinter Sessions ===

==== [Joint] ULF wave Modeling, Effects, and Applications + Modeling Methods and Validation ====
'''ULF wave modeling challenge'''

Overview of the ULF wave modeling challenge, including discussion of the ULF wave challenge event on 27-28 May 2017 (http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_ULF_Wave_Modeling%2C_Effects%2C_and_Applications) and coordinated analysis aimed at identifying additional science targets for the modeling challenge.

*1. Brief ULF wave poster overviews (Thursday posters)

*2. Mike Hartinger: ULF wave modeling challenge event overview, discussion of challenge targets (continuing during session)

*3. Mariko Teramoto: ARASE ULF wave observations during challenge event

*4. Sam Califf: GOES-14 and 16 observations during the ULF wave challenge event, Data Discussion

*5. Toshi Nishimura: PFISR measurements of the 27-28 May 2017 ULF waves

*6. Dogacan Su Ozturk: The modeling study of the 27 March 2017 Event

*7. Xiaochen Shen: GEM Challenge Event: ULF wave-related electron and proton precipitation/negative dynamic pressure pulse driven EMIC wave

*8. Others discuss when their figures/summary plots in event overview pdf are presented…

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Geospace Systems Science ====

“Progress in Systems Science”. This session will be comprised of short oral presentations highlighting this year’s progress. Speakers will include

1. Brian Walsh
Topic: on solar wind propagation and uncertainties
2. Misha Sitnov
Topic: on data-mining efforts in empirical reconstruction of substorms
3. Alexander Lipatov
“Effects of transmitted interplanetary impulse interaction with plasmaspheric plume. First results from 3-D hybrid kinetic modeling”
4. Shin Ohtani
TBA
5. Lynn Kistler
Topic: the sawtooth project
6. Katariina Nykyri
TBA
7. Joe Borovsky
“A Composite Index of Magnetospheric Activity”

=== 1330-1500: Splinter Sessions ===

==== [FG] Modeling Methods and Validation ====
This session will include talks on general validation topics, followed by a discussion of validation at GEM.

- Mike Liemohn: ILWS-CCMC “metrics for modeling geomagnetic indices” 
- Adam Kellerman: "Application Usability Levels: A framework for objectively measuring a projects progress towards specific applications.” 
and: "Verification of the UCLA real-time data assimilative VERB code over the 2016-2018 period of operation." 
- Lutz Rastaetter: New visualizations and metrics 
- Misha Sitnov: “Global MHD validation of substorms and implications for kinetic simulations” 
- Nathaniel Frissell: "Modeling Amateur Radio Soundings of the Ionospheric Response to the 2017 Great American Eclipse" 
- MM&V Co-chairs (presented by Katherine Garcia-Sage): GEM Validation - Issues and Ideas 

Following the speakers, we will have a discussion on ideas and issues for organizing validation at GEM.

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''1.''' '''Robert Allen''': Cassini observations of the distant magnetotail and sheath

'''2.''' '''Lin Yu et al. (presented by Jay Johnson)''': Global hybrid simulation and THEMIS and DMSP observations

'''3.''' '''Joachim Birn''': Current diversion and energy flow and conversion associated with the substorm current wedge

'''4.''' '''Jiang Liu''': Field-aligned currents from Swarm

'''5.''' '''Xiaochen Shen''': Kelvin-Helmholtz waves in mid-tail

'''6.''' '''San Lu''': PIC simulation result on the magnetotail dawn-dusk asymmetry

'''7.''' '''Anton Artemyev''': 3D picture of thin current sheet formation

'''8.''' '''Andrei Runov''': Current sheet structure at lunar distances

'''9.''' '''Chih-Ping Wang''': Update on mid-tail dynamics observed by ARTEMIS

==== [FG] Geospace Systems Science ====

“Geospace Systems Science: Looking Ahead”. This is the final (5th-year) session of the GSS Focus Group. This session will be an audience discussion to assess the systems-science approach to understanding geospace and to consider new ideas for the future.

=== 1530-1700: Splinter Sessions ===

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''Modeling challenge:''' We will discuss candidate events for next modeling challenge

'''Candidate events:'''

'''1. Magnetotail length during N IMF:''' 2010-10-22, Two ARTEMIS tail conjunction

'''2. Impact of small solar wind dynamic pressure on the magnetotail:''' 2017-09-06, Geotail-ARTEMIS midnight conjunction

'''3. Magnetotail response to transition from N IMF to S IMF: 2017-07-09:''' GOES-Geotail-MMS-ARTEMIS midnight conjunction

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Weichao Tu and Steve Morley''

'''1. Mary Hudson (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Enhancements

'''2. Alex Boyd''': What Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era

'''3. Hong Zhao''': Effects of Solar Wind and Magnetospheric Processes on the Ultra-Relativistic Electron Acceleration in the Outer Radiation Belt

'''4. Adam Kellerman''': Quantitative analysis of the radiation-belt electron phase-space-density response to stream-interaction regions utilizing the data-assimilative VERB code

'''5. Zhao Li''': Relativistic electron advection during CME-shock driven storms

'''6. Leng Ying Khoo''': On the Initial Enhancements of Energetic Electrons and the Innermost Plasmapause Locations During Storm Periods

'''7. Dedong Wang''': VERB Simulation for GEM Challenge Events

'''8. Ivan Vasko''': Electrostatic Steepening of Whistler Waves

'''9. Anton Artemyev''': Electron nonlinear resonant interaction with short and intense parallel chorus wave-packets

'''10. (walk-in) Scot Elkington''': Test Particle/SDE Simulations of a Stormtime Enhancement Event

'''11. (walk-in) Xiaojia Zhang''': Properties of intense field-aligned lower-band chorus waves: implications for nonlinear wave-particle interactions

==== [Joint] Magnetic Reconnection in the Age of the Heliophysics System Observatory + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

== Thursday, June 21 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

'''Agency reports:'''
* NSF - ''Carrie Black, Mike Wiltberger''
* NOAA - ''Howard Singer''
* NASA - ''Jim Spann''
* Air Force - ''James McCollough''
* LPAG - ''Matina Gkioulidou et al.''

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Jay Albert and Wen Li''

'''1. Sasha Ukhorskiy (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Dropouts

'''2. Seth Claudepierre''': Empirical estimates of electron lifetimes in the radiation belts

'''3. Zheng Xiang''': A statistical survey of radiation belt dropouts observed by Van Allen Probes

'''4. Joe Borovsky''': MeV-Electron Dropouts without MeV-Proton Dropouts

'''5. Luisa Capannolo''': Understanding the driver of energetic electron precipitation using coordinated multi-satellite measurements (24 September 2013 Challenge Event)

'''6. Mark Engebretson''': EMIC wave events during the four GEM QARBM challenge intervals

'''7. Armando Maldonado''': On the diffusion rates of electron bounce resonant scattering by magnetosonic waves

'''8. Oleksiy Agapitov''': Chorus-microburst relations and the corresponding scaling

'''9. Alexander Drozdov''': Modeling of a non-storm dropout event

'''10. (walk-in) Robyn Millan''': Newly selected REAL CubeSat Mission

'''11. (walk-in) Poorya Hosseini''': Whistler wave-particle interaction in the Earth's radiation belts

==== Ground Magnetometer Array Group ====

=== 1330-1500: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== SPEDAS Demo and Tutorial (General/New Users) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] Modeling Methods and Validation: Conductance Challenge Session ====

- Geoff Crowley 
- Slides from Steve Kaeppler 
- Slides from Ryan McGranaghan 
- George Khazanov 
- Margaret Chen 
- Agnit Mukhopadhyay 

The goal for this session is to discuss data/model results from the specific challenge days, as well as data/model parameters, uncertainties, assumptions, and boundary conditions, with an eye toward making comparisons for these events (including model-model, data-data, and model-data comparisons).

After the speakers, we’ll determine whether there is anyone else who we need to get involved in the challenge events and identify next steps for making comparisons and moving the challenge forward.

'''Challenge events:''' 
#1 2016 Oct 13-15 
#2 2013 March 17 
'''Bonus storms (selected by the CCMC Space Weather Capabilities Auroral Assessment team):''' 
#3 2015 Jun 21-24 
#4 2012 March 9 

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Steve Morley and Jay Albert''

'''1. Steve Morley''': Summary of RB Enhancement and Dropout Challenges

'''2. Lauren Blum''': Newly selected CubeSat mission at GTO orbit

'''3. Xinlin Li''': Newly selected CubeSat: Inner Radiation Belt Experiment (CIRBE)

'''4. James McCollough''': Update on DSX Mission

'''5. Panel Discussions''': Remaining Open Questions and Future Directions of Radiation Belt Studies

'''Panelists: Jacob Bortnik, Allison Jaynes, Wen Li, Geoff Reeves, and Drew Turner'''

=== 1800-2100: Posters ===

== Friday, June 22 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Student poster awards & Jacob poll results''' (30 min)

* '''MIC panel''': ''Shin Ohtani'' (moderator), ''Brian Anderson, Bill Bristow, Bob Lysak, Peter Chi, Bill Lotko'' (1 hour)

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

=== 1330-1500: Splinter Sessions ===

==== [Joint] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) + Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

==== SPEDAS Demo and Tutorial (Analyzing MMS data with SPEDAS) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) ====

== Saturday, June 23 ==

'''GEM-CEDAR Joint Workshop'''

=== 0830-1000: Multiscale aspects of the energy budget ===

=== 1030-1200: Interhemispheric processes, hemispheric symmetries & asymmetries ===

=== 1330-1500: What is needed to make progress? ===

=== 1530-1700: Data science in Geospace ===

2018 GEM Workshop and GEM-CEDAR Joint Workshop

2018-06-16T18:39:15Z

Kylemurphy: /* [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms */

'''Detailed Schedule'''

Below is a detailed session schedule with names of tentative speakers provided by Focus Group Leaders and Research Area Coordinators. The information here serves as a rough guide for those who wish to know the most updated session plans. Due to the dynamic nature of the Workshop, Focus Groups may continue to revise their agenda as needed.

All other information about the 2018 GEM Summer Workshop can be found at the [http://www.cpe.vt.edu/gem/index.html GEM Workshop Coordinator site].

== Monday, June 18 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Opening and welcome''': ''Jacob Bortnik'' (15 min)

* '''SWMI panel''': ''Katariina Nykyri'' (moderator), ''Bob McPherron, Vassilis Angelopoulos, Toshi Nishimura, Jay Johnson, Heli Hietala'' (45 min)

* '''Mission talks''': RBSP - ''Sasha Ukhorskiy''; THEMIS - ''Vassilis Angelopoulos''; MMS - ''Li-Jen Chen/Rick Wilder''; NSF Ground-based - ''Mark Engebretson/Eftyhia Zesta'' (30 min)

=== 1030-1200: Splinter Sessions ===

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [Joint] ULF wave Modeling, Effects, and Applications + Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====
'''ULF waves during particle injections and dipolarizations'''
This session focuses on the relationship between particle injections/dipolarizations and Pc4-5/Pi2/EMIC waves - e.g., Why are waves driven in only some events? Do waves impact the ring current/radiation belts?

*1. Discussion of Session Topic

*2. Bob Lysak -- Ionospheric Conductivity Effects on Pi2 Pulsations

*3. Mike Hartinger -- Pi2 waves during an extended period with stable plasmapause location and variable geomagnetic activity

*4. Toshi Nishimura -- Ionosphere observations of Pc5 ULF waves during 2018 HGSO conjunctions

*5. Xueling Shi -- Long-lasting poloidal ULF waves observed by multiple satellite and SuperDARN HF radars

*6. Jian Yang -- New RCM-I simulation results for buoyancy waves

*7. Dick Wolf -- Theory of Buoyancy Waves

*8. Yan Song -- What Causes the Substorm Expansion Phase and Associated ULF Waves?

=== 1330-1500: Splinter Sessions ===

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

This session will focus on observations of the challenge events, discussion of steady magnetospheric convections, storm-time substorms, and isolated substorms and their effects on the inner magnetosphere.

* 1. Introduction to Event Studies: [http://gem.epss.ucla.edu/mediawikiwiki/images/5/59/GEM_2018_DipolarizationSubstorm_ChallengeEvents.pdf Challenge Events]
* 2. Christine Gabrielse (Riometers/THEMIS)
* 3. Toshi Nishimura (ASI)
* 4. Drew Turner (MMS, Van Allen)
* 5. Amy Keese (Twins)
* 6. Lauren Blum (Van Allen, EMIC)
* 7. Colin Komar (SWMF)
* 8. Kyle Murphy (LANL, ULF, SuperDARN)

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''Recent advances in ULF wave research'''

*1. Overview of focus group goals and recent progress

*2. Brief ULF wave poster overviews (Tuesday posters)

*3. Kazue Takahashi -- Observation of nightside ULF waves by RBSP and Arase

*4. Tom Elsden -- Broadband Excitation of 3D Alfven Resonances (FLRs) in an MHD Waveguide

*5. Boyi Wang -- 2-D structure of foreshock driven Pc5 ULF waves observed by the THEMIS satellites and South Pole imager

*6. Xiaochen Shen -- Foreshock transient-driven ultra-low frequency (ULF) waves with dawn-dusk asymmetry of wave power

*7. Chih-Ping Wang -- ULF waves possibly driven by tailward propagation of foreshock perturbations

*8. Allison Jaynes -- Fast diffusion of ultra-relativistic electrons in the outer radiation belt: 17 March 2015 storm event

*9. Rualdo Soto -- The Drift-Mirror instability in Earth's inner magnetosphere

*10. Martin Archer/Mike Hartinger -- Results from Sonification and Citizen Science of Magnetospheric ULF waves

=== 1530-1700: Splinter Sessions ===

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''EMIC wave generation, propagation, and interactions''': Discussion leaders Alexander Drozdov and Maria Usanova

The generation mechanisms of EMIC waves, their effects on trapped particles, and their propagation through the M-I system are challenging topics that involve multiple GEM research areas. Despite several years of observations and improved global wave statistics, there are many unresolved questions that limit further investigation, modeling and prediction of processes in the inner magnetosphere involving EMIC waves. This session includes presentations and discussion that unites recent findings in different areas of EMIC wave research and identifies observations/models most needed to address unresolved questions.

*1. Dedong Wang -- EMIC wave observations from Van Allen Probes and MMS

*2. Mark Engebretson -- MMS, Van Allen Probes, and ground based magnetometer observations of EMIC waves associated with a modest interplanetary shock

*3. Maria Usanova -- MMS Observations of Harmonic Electromagnetic Cyclotron Waves

*4. Naritoshi Kitamura -- Direct measurements of energy transfer from hot H+ to EMIC waves by MMS

*5. Bruce Fritz -- ELF Whistler Dependence on a Sunlit Ionosphere

*6. Chae-Woo Jun -- EMIC waves associated with/without the injection inside/outside the plasmapause

*7. Hyomin Kim -- Injection-associated EMIC waves

*8. Sebastian Cervantes -- EMIC wave parameterization in radiation belt reanalysis

*9. Maria Usanova -- Long-term correlation of EMIC wave activity and radiation belt flux variations

*10. Alexander Drozdov -- The effects due to the EMIC waves in the VERB code modeling

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

* 1. Summary of previous session and event studies
* 2. Sarah Vines - AMPERE
* 3. Grant Stephens - Empirical field model
* 4. Slava Merkin - Coupling global MHD and empirical field model
* 5. Sasha Ukhorskiy - LFM Chimp
* 6. Bea Gallardo-Lacourt
* 7. Shin Ohtani - PBIs

=== 1730-1830: Plenary Session ===

== Tuesday, June 19 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''MPS tutorial''': ''Slava Merkin''

* '''GSM tutorial''': ''Li-Jen Chen''

=== 1030-1200: Splinter Sessions ===

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
Inner magnetosphere-ionosphere coupling
*Harneet Sangha: The Field-Aligned Current Structure Associated with Sub-Auroral Polarization Streams
*Bea Gallardo-Lacourt: STEVE: An optical structure in the subauroral region. Location and geomagnetic conditions during its formation
*Yiqun Yu: Self-consistent modeling of magnetosphereic precipitation and response in the ionosphere
*Nithin Sivadas: Energetic precipitation during substorms: simultaneously measured in the magnetosphere and ionosphere
*Xiangning Chu: Unexpected storm-time plasmaspheric density increase at low L shells on the nightside

=== 1330-1500: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
particle and wave dynamics
*Yue Chao：Oxygen ion behavior in Earth’s ring current dynamics based on Van Allen Probes observations
*Mykhaylo Shumko: Evidence of Microbursts Observed Near the Equatorial Plane in the Outer Van Allen Radiation Belt
*Run Shi: Properties of whistler mode waves in plasmasphere and plasmaspheric plume
*Qianli Ma: Ion Heating by Electromagnetic Ion Cyclotron Waves in the Inner Magnetosphere’
*Sam Bingham: The development of source electrons and chorus wave activity during CME and CIR storms
*Poorya Hosseini: TBD

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Christine Gabrielse, Drew Turner, David Malaspina, Matina Gkioulidou, Slava Merkin

We will have a panel discussion on the questions below with an aim to communicate different types of models' capabilities to answer different science questions, as well as a discussion on how we can move forward towards improved, data-informed models. We invite the audience to participate in the discussion and to provide input as to how we, as a field, can move forward to better understand how dipolarizations affect the inner magnetosphere, and/or how they are affected by the coupled magnetosphere-ionosphere system.

'''Panelists''' 
Misha Sitnov 
San Lu 
Jimmy Raeder 
Yann Kempf 
Colby Lemon 
Katie Garcia-Sage 

'''Panel Questions'''

1) Given our current modeling capabilities, discuss which kinds of models are best at capturing which aspects of dipolarization events and their effects in the magnetosphere.

2) What determines the dipolarization scale size in different models? (e.g., physical description, boundary conditions, model input parameters, ionosphere conditions, etc.?)

3) The transition region is where both inertia and energy dependent drifts are important. No existing models treat that region correctly.
(a) How do we move forward?

(b) Or, more specifically, address the question of dipolarization front deceleration:
(i) How do various models treat dipolarization deceleration as they approach the inner magnetosphere?
(ii) What processes are decelerating the fronts in the models?
(iii) What inner magnetosphere processes are missing (e.g. plasmasphere, complex ionospheric conductivity models) and does excluding these processes lead to different deceleration predictions?

(c) And/or address:
(i) What are the relative roles of ExB, energy-dependent drifts and particle trapping in transport and energization in the transition region?
(ii) To what extent are these processes adiabatic for particles of different energies?
(iii) What is their overall contribution to the ring current build up?

Although the questions are focusing on dipolarization implementation into the current magnetospheric models, participation of data analysts is highly desired and encouraged in order to establish an observational framework for the models.

=== 1530-1700: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
*Report on the spacecraft charging challenge
*We will have a panel discussion on remaining scientific questions in the coupled inner magnetosphere system and on future plans regarding how we will continue and move forward to better understand the cross-energy/population coupling processes and interactions with tail and ionosphere. We also cordially invite the audience to participate and contribute.

*Panelist: Mike Liemohn, Vania Jordanova, George Khazanov, Yihua Zheng

==== [Joint] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction + Modeling Methods and Validation ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Drew Turner, Christine Gabrielse, David Malaspina, Slava Merkin, Matina Gkioulidou

This is an informal, workshop-style session that we opened up to contributed slides in order to provide the community a mouthpiece to focus on any brand new results, outstanding challenges, and/or outstanding questions concerning the research.

Although we provide the list of speakers, we point out that some of them may present during our panel-led discussion at 1:30.

'''Speakers ------------------- Topics (~5 min)''' 
1. Chih-Ping Wang ------- RCM results of bubbles 
2. Jiang Liu ----------------- R1/R2 currents as a collective result of very intense and localized FACs in the tail 
3. Brian Swiger ----------- ~keV electron enhancements in the tail from THEMIS, correlation to AE 
4. Andrei Runov (?) ------ Comparing injections at THEMIS with LANL 
5. Sasha Ukhorskiy ------- Ion acceleration and transport from the tail to the inner magnetosphere, the effects of trapping, adiabaticity, and the role of charge 
6. Anton Artemyev -------- Particle energization: adiabatic vs. nonadiabatic 
7. Xiangnig Chu ----------- Broadband waves on the dipolarization front in the inner magnetosphere 
8. Shin Ohtani ------------- Statistical study of two-point measurements of dipolarization and the result shows earthward propagation 
9. Ryan Dewey ------------ Dipolarization effects at Mercury and comparisons to Earth 

=== 1800-2100: Posters ===

== Wednesday, June 20 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''IMAG tutorial''': ''Harlan Spence''

* '''Student invited tutorial''': ''David Sibeck''

=== 1030-1200: Splinter Sessions ===

==== [Joint] ULF wave Modeling, Effects, and Applications + Modeling Methods and Validation ====
'''ULF wave modeling challenge'''

Overview of the ULF wave modeling challenge, including discussion of the ULF wave challenge event on 27-28 May 2017 (http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_ULF_Wave_Modeling%2C_Effects%2C_and_Applications) and coordinated analysis aimed at identifying additional science targets for the modeling challenge.

*1. Brief ULF wave poster overviews (Thursday posters)

*2. Mike Hartinger: ULF wave modeling challenge event overview, discussion of challenge targets (continuing during session)

*3. Mariko Teramoto: ARASE ULF wave observations during challenge event

*4. Sam Califf: GOES-14 and 16 observations during the ULF wave challenge event, Data Discussion

*5. Toshi Nishimura: PFISR measurements of the 27-28 May 2017 ULF waves

*6. Dogacan Su Ozturk: The modeling study of the 27 March 2017 Event

*7. Xiaochen Shen: GEM Challenge Event: ULF wave-related electron and proton precipitation/negative dynamic pressure pulse driven EMIC wave

*8. Others discuss when their figures/summary plots in event overview pdf are presented…

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Geospace Systems Science ====

“Progress in Systems Science”. This session will be comprised of short oral presentations highlighting this year’s progress. Speakers will include

1. Brian Walsh
Topic: on solar wind propagation and uncertainties
2. Misha Sitnov
Topic: on data-mining efforts in empirical reconstruction of substorms
3. Alexander Lipatov
“Effects of transmitted interplanetary impulse interaction with plasmaspheric plume. First results from 3-D hybrid kinetic modeling”
4. Shin Ohtani
TBA
5. Lynn Kistler
Topic: the sawtooth project
6. Katariina Nykyri
TBA
7. Joe Borovsky
“A Composite Index of Magnetospheric Activity”

=== 1330-1500: Splinter Sessions ===

==== [FG] Modeling Methods and Validation ====
This session will include talks on general validation topics, followed by a discussion of validation at GEM.

- Mike Liemohn: ILWS-CCMC “metrics for modeling geomagnetic indices” 
- Adam Kellerman: "Application Usability Levels: A framework for objectively measuring a projects progress towards specific applications.” 
and: "Verification of the UCLA real-time data assimilative VERB code over the 2016-2018 period of operation." 
- Lutz Rastaetter: New visualizations and metrics 
- Misha Sitnov: “Global MHD validation of substorms and implications for kinetic simulations” 
- Nathaniel Frissell: "Modeling Amateur Radio Soundings of the Ionospheric Response to the 2017 Great American Eclipse" 
- MM&V Co-chairs (presented by Katherine Garcia-Sage): GEM Validation - Issues and Ideas 

Following the speakers, we will have a discussion on ideas and issues for organizing validation at GEM.

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''1.''' '''Robert Allen''': Cassini observations of the distant magnetotail and sheath

'''2.''' '''Lin Yu et al. (presented by Jay Johnson)''': Global hybrid simulation and THEMIS and DMSP observations

'''3.''' '''Joachim Birn''': Current diversion and energy flow and conversion associated with the substorm current wedge

'''4.''' '''Jiang Liu''': Field-aligned currents from Swarm

'''5.''' '''Xiaochen Shen''': Kelvin-Helmholtz waves in mid-tail

'''6.''' '''San Lu''': PIC simulation result on the magnetotail dawn-dusk asymmetry

'''7.''' '''Anton Artemyev''': 3D picture of thin current sheet formation

'''8.''' '''Andrei Runov''': Current sheet structure at lunar distances

'''9.''' '''Chih-Ping Wang''': Update on mid-tail dynamics observed by ARTEMIS

==== [FG] Geospace Systems Science ====

“Geospace Systems Science: Looking Ahead”. This is the final (5th-year) session of the GSS Focus Group. This session will be an audience discussion to assess the systems-science approach to understanding geospace and to consider new ideas for the future.

=== 1530-1700: Splinter Sessions ===

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''Modeling challenge:''' We will discuss candidate events for next modeling challenge

'''Candidate events:'''

'''1. Magnetotail length during N IMF:''' 2010-10-22, Two ARTEMIS tail conjunction

'''2. Impact of small solar wind dynamic pressure on the magnetotail:''' 2017-09-06, Geotail-ARTEMIS midnight conjunction

'''3. Magnetotail response to transition from N IMF to S IMF: 2017-07-09:''' GOES-Geotail-MMS-ARTEMIS midnight conjunction

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Weichao Tu and Steve Morley''

'''1. Mary Hudson (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Enhancements

'''2. Alex Boyd''': What Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era

'''3. Hong Zhao''': Effects of Solar Wind and Magnetospheric Processes on the Ultra-Relativistic Electron Acceleration in the Outer Radiation Belt

'''4. Adam Kellerman''': Quantitative analysis of the radiation-belt electron phase-space-density response to stream-interaction regions utilizing the data-assimilative VERB code

'''5. Zhao Li''': Relativistic electron advection during CME-shock driven storms

'''6. Leng Ying Khoo''': On the Initial Enhancements of Energetic Electrons and the Innermost Plasmapause Locations During Storm Periods

'''7. Dedong Wang''': VERB Simulation for GEM Challenge Events

'''8. Ivan Vasko''': Electrostatic Steepening of Whistler Waves

'''9. Anton Artemyev''': Electron nonlinear resonant interaction with short and intense parallel chorus wave-packets

'''10. (walk-in) Scot Elkington''': Test Particle/SDE Simulations of a Stormtime Enhancement Event

'''11. (walk-in) Xiaojia Zhang''': Properties of intense field-aligned lower-band chorus waves: implications for nonlinear wave-particle interactions

==== [Joint] Magnetic Reconnection in the Age of the Heliophysics System Observatory + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

== Thursday, June 21 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

'''Agency reports:'''
* NSF - ''Carrie Black, Mike Wiltberger''
* NOAA - ''Howard Singer''
* NASA - ''Jim Spann''
* Air Force - ''James McCollough''
* LPAG - ''Matina Gkioulidou et al.''

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Jay Albert and Wen Li''

'''1. Sasha Ukhorskiy (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Dropouts

'''2. Seth Claudepierre''': Empirical estimates of electron lifetimes in the radiation belts

'''3. Zheng Xiang''': A statistical survey of radiation belt dropouts observed by Van Allen Probes

'''4. Joe Borovsky''': MeV-Electron Dropouts without MeV-Proton Dropouts

'''5. Luisa Capannolo''': Understanding the driver of energetic electron precipitation using coordinated multi-satellite measurements (24 September 2013 Challenge Event)

'''6. Mark Engebretson''': EMIC wave events during the four GEM QARBM challenge intervals

'''7. Armando Maldonado''': On the diffusion rates of electron bounce resonant scattering by magnetosonic waves

'''8. Oleksiy Agapitov''': Chorus-microburst relations and the corresponding scaling

'''9. Alexander Drozdov''': Modeling of a non-storm dropout event

'''10. (walk-in) Robyn Millan''': Newly selected REAL CubeSat Mission

'''11. (walk-in) Poorya Hosseini''': Whistler wave-particle interaction in the Earth's radiation belts

==== Ground Magnetometer Array Group ====

=== 1330-1500: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== SPEDAS Demo and Tutorial (General/New Users) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] Modeling Methods and Validation: Conductance Challenge Session ====

- Geoff Crowley 
- Slides from Steve Kaeppler 
- Slides from Ryan McGranaghan 
- George Khazanov 
- Margaret Chen 
- Agnit Mukhopadhyay 

The goal for this session is to discuss data/model results from the specific challenge days, as well as data/model parameters, uncertainties, assumptions, and boundary conditions, with an eye toward making comparisons for these events (including model-model, data-data, and model-data comparisons).

After the speakers, we’ll determine whether there is anyone else who we need to get involved in the challenge events and identify next steps for making comparisons and moving the challenge forward.

'''Challenge events:''' 
#1 2016 Oct 13-15 
#2 2013 March 17 
'''Bonus storms (selected by the CCMC Space Weather Capabilities Auroral Assessment team):''' 
#3 2015 Jun 21-24 
#4 2012 March 9 

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Steve Morley and Jay Albert''

'''1. Steve Morley''': Summary of RB Enhancement and Dropout Challenges

'''2. Lauren Blum''': Newly selected CubeSat mission at GTO orbit

'''3. Xinlin Li''': Newly selected CubeSat: Inner Radiation Belt Experiment (CIRBE)

'''4. James McCollough''': Update on DSX Mission

'''5. Panel Discussions''': Remaining Open Questions and Future Directions of Radiation Belt Studies

'''Panelists: Jacob Bortnik, Allison Jaynes, Wen Li, Geoff Reeves, and Drew Turner'''

=== 1800-2100: Posters ===

== Friday, June 22 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Student poster awards & Jacob poll results''' (30 min)

* '''MIC panel''': ''Shin Ohtani'' (moderator), ''Brian Anderson, Bill Bristow, Bob Lysak, Peter Chi, Bill Lotko'' (1 hour)

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

=== 1330-1500: Splinter Sessions ===

==== [Joint] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) + Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

==== SPEDAS Demo and Tutorial (Analyzing MMS data with SPEDAS) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) ====

== Saturday, June 23 ==

'''GEM-CEDAR Joint Workshop'''

=== 0830-1000: Multiscale aspects of the energy budget ===

=== 1030-1200: Interhemispheric processes, hemispheric symmetries & asymmetries ===

=== 1330-1500: What is needed to make progress? ===

=== 1530-1700: Data science in Geospace ===

2018 GEM Workshop and GEM-CEDAR Joint Workshop

2018-06-16T18:37:42Z

Kylemurphy: /* [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms */

'''Detailed Schedule'''

Below is a detailed session schedule with names of tentative speakers provided by Focus Group Leaders and Research Area Coordinators. The information here serves as a rough guide for those who wish to know the most updated session plans. Due to the dynamic nature of the Workshop, Focus Groups may continue to revise their agenda as needed.

All other information about the 2018 GEM Summer Workshop can be found at the [http://www.cpe.vt.edu/gem/index.html GEM Workshop Coordinator site].

== Monday, June 18 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Opening and welcome''': ''Jacob Bortnik'' (15 min)

* '''SWMI panel''': ''Katariina Nykyri'' (moderator), ''Bob McPherron, Vassilis Angelopoulos, Toshi Nishimura, Jay Johnson, Heli Hietala'' (45 min)

* '''Mission talks''': RBSP - ''Sasha Ukhorskiy''; THEMIS - ''Vassilis Angelopoulos''; MMS - ''Li-Jen Chen/Rick Wilder''; NSF Ground-based - ''Mark Engebretson/Eftyhia Zesta'' (30 min)

=== 1030-1200: Splinter Sessions ===

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [Joint] ULF wave Modeling, Effects, and Applications + Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====
'''ULF waves during particle injections and dipolarizations'''
This session focuses on the relationship between particle injections/dipolarizations and Pc4-5/Pi2/EMIC waves - e.g., Why are waves driven in only some events? Do waves impact the ring current/radiation belts?

*1. Discussion of Session Topic

*2. Bob Lysak -- Ionospheric Conductivity Effects on Pi2 Pulsations

*3. Mike Hartinger -- Pi2 waves during an extended period with stable plasmapause location and variable geomagnetic activity

*4. Toshi Nishimura -- Ionosphere observations of Pc5 ULF waves during 2018 HGSO conjunctions

*5. Xueling Shi -- Long-lasting poloidal ULF waves observed by multiple satellite and SuperDARN HF radars

*6. Jian Yang -- New RCM-I simulation results for buoyancy waves

*7. Dick Wolf -- Theory of Buoyancy Waves

*8. Yan Song -- What Causes the Substorm Expansion Phase and Associated ULF Waves?

=== 1330-1500: Splinter Sessions ===

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

* 1. Introduction to Event Studies: [http://gem.epss.ucla.edu/mediawikiwiki/images/5/59/GEM_2018_DipolarizationSubstorm_ChallengeEvents.pdf Challenge Events]
* 2. Christine Gabrielse (Riometers/THEMIS)
* 3. Toshi Nishimura (ASI)
* 4. Drew Turner (MMS, Van Allen)
* 5. Amy Keese (Twins)
* 6. Lauren Blum (Van Allen, EMIC)
* 7. Colin Komar (SWMF)
* 8. Kyle Murphy (LANL, ULF, SuperDARN)

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''Recent advances in ULF wave research'''

*1. Overview of focus group goals and recent progress

*2. Brief ULF wave poster overviews (Tuesday posters)

*3. Kazue Takahashi -- Observation of nightside ULF waves by RBSP and Arase

*4. Tom Elsden -- Broadband Excitation of 3D Alfven Resonances (FLRs) in an MHD Waveguide

*5. Boyi Wang -- 2-D structure of foreshock driven Pc5 ULF waves observed by the THEMIS satellites and South Pole imager

*6. Xiaochen Shen -- Foreshock transient-driven ultra-low frequency (ULF) waves with dawn-dusk asymmetry of wave power

*7. Chih-Ping Wang -- ULF waves possibly driven by tailward propagation of foreshock perturbations

*8. Allison Jaynes -- Fast diffusion of ultra-relativistic electrons in the outer radiation belt: 17 March 2015 storm event

*9. Rualdo Soto -- The Drift-Mirror instability in Earth's inner magnetosphere

*10. Martin Archer/Mike Hartinger -- Results from Sonification and Citizen Science of Magnetospheric ULF waves

=== 1530-1700: Splinter Sessions ===

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''EMIC wave generation, propagation, and interactions''': Discussion leaders Alexander Drozdov and Maria Usanova

The generation mechanisms of EMIC waves, their effects on trapped particles, and their propagation through the M-I system are challenging topics that involve multiple GEM research areas. Despite several years of observations and improved global wave statistics, there are many unresolved questions that limit further investigation, modeling and prediction of processes in the inner magnetosphere involving EMIC waves. This session includes presentations and discussion that unites recent findings in different areas of EMIC wave research and identifies observations/models most needed to address unresolved questions.

*1. Dedong Wang -- EMIC wave observations from Van Allen Probes and MMS

*2. Mark Engebretson -- MMS, Van Allen Probes, and ground based magnetometer observations of EMIC waves associated with a modest interplanetary shock

*3. Maria Usanova -- MMS Observations of Harmonic Electromagnetic Cyclotron Waves

*4. Naritoshi Kitamura -- Direct measurements of energy transfer from hot H+ to EMIC waves by MMS

*5. Bruce Fritz -- ELF Whistler Dependence on a Sunlit Ionosphere

*6. Chae-Woo Jun -- EMIC waves associated with/without the injection inside/outside the plasmapause

*7. Hyomin Kim -- Injection-associated EMIC waves

*8. Sebastian Cervantes -- EMIC wave parameterization in radiation belt reanalysis

*9. Maria Usanova -- Long-term correlation of EMIC wave activity and radiation belt flux variations

*10. Alexander Drozdov -- The effects due to the EMIC waves in the VERB code modeling

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

* 1. Summary of previous session and event studies
* 2. Sarah Vines - AMPERE
* 3. Grant Stephens - Empirical field model
* 4. Slava Merkin - Coupling global MHD and empirical field model
* 5. Sasha Ukhorskiy - LFM Chimp
* 6. Bea Gallardo-Lacourt
* 7. Shin Ohtani - PBIs

=== 1730-1830: Plenary Session ===

== Tuesday, June 19 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''MPS tutorial''': ''Slava Merkin''

* '''GSM tutorial''': ''Li-Jen Chen''

=== 1030-1200: Splinter Sessions ===

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
Inner magnetosphere-ionosphere coupling
*Harneet Sangha: The Field-Aligned Current Structure Associated with Sub-Auroral Polarization Streams
*Bea Gallardo-Lacourt: STEVE: An optical structure in the subauroral region. Location and geomagnetic conditions during its formation
*Yiqun Yu: Self-consistent modeling of magnetosphereic precipitation and response in the ionosphere
*Nithin Sivadas: Energetic precipitation during substorms: simultaneously measured in the magnetosphere and ionosphere
*Xiangning Chu: Unexpected storm-time plasmaspheric density increase at low L shells on the nightside

=== 1330-1500: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
particle and wave dynamics
*Yue Chao：Oxygen ion behavior in Earth’s ring current dynamics based on Van Allen Probes observations
*Mykhaylo Shumko: Evidence of Microbursts Observed Near the Equatorial Plane in the Outer Van Allen Radiation Belt
*Run Shi: Properties of whistler mode waves in plasmasphere and plasmaspheric plume
*Qianli Ma: Ion Heating by Electromagnetic Ion Cyclotron Waves in the Inner Magnetosphere’
*Sam Bingham: The development of source electrons and chorus wave activity during CME and CIR storms
*Poorya Hosseini: TBD

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Christine Gabrielse, Drew Turner, David Malaspina, Matina Gkioulidou, Slava Merkin

We will have a panel discussion on the questions below with an aim to communicate different types of models' capabilities to answer different science questions, as well as a discussion on how we can move forward towards improved, data-informed models. We invite the audience to participate in the discussion and to provide input as to how we, as a field, can move forward to better understand how dipolarizations affect the inner magnetosphere, and/or how they are affected by the coupled magnetosphere-ionosphere system.

'''Panelists''' 
Misha Sitnov 
San Lu 
Jimmy Raeder 
Yann Kempf 
Colby Lemon 
Katie Garcia-Sage 

'''Panel Questions'''

1) Given our current modeling capabilities, discuss which kinds of models are best at capturing which aspects of dipolarization events and their effects in the magnetosphere.

2) What determines the dipolarization scale size in different models? (e.g., physical description, boundary conditions, model input parameters, ionosphere conditions, etc.?)

3) The transition region is where both inertia and energy dependent drifts are important. No existing models treat that region correctly.
(a) How do we move forward?

(b) Or, more specifically, address the question of dipolarization front deceleration:
(i) How do various models treat dipolarization deceleration as they approach the inner magnetosphere?
(ii) What processes are decelerating the fronts in the models?
(iii) What inner magnetosphere processes are missing (e.g. plasmasphere, complex ionospheric conductivity models) and does excluding these processes lead to different deceleration predictions?

(c) And/or address:
(i) What are the relative roles of ExB, energy-dependent drifts and particle trapping in transport and energization in the transition region?
(ii) To what extent are these processes adiabatic for particles of different energies?
(iii) What is their overall contribution to the ring current build up?

Although the questions are focusing on dipolarization implementation into the current magnetospheric models, participation of data analysts is highly desired and encouraged in order to establish an observational framework for the models.

=== 1530-1700: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
*Report on the spacecraft charging challenge
*We will have a panel discussion on remaining scientific questions in the coupled inner magnetosphere system and on future plans regarding how we will continue and move forward to better understand the cross-energy/population coupling processes and interactions with tail and ionosphere. We also cordially invite the audience to participate and contribute.

*Panelist: Mike Liemohn, Vania Jordanova, George Khazanov, Yihua Zheng

==== [Joint] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction + Modeling Methods and Validation ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Drew Turner, Christine Gabrielse, David Malaspina, Slava Merkin, Matina Gkioulidou

This is an informal, workshop-style session that we opened up to contributed slides in order to provide the community a mouthpiece to focus on any brand new results, outstanding challenges, and/or outstanding questions concerning the research.

Although we provide the list of speakers, we point out that some of them may present during our panel-led discussion at 1:30.

'''Speakers ------------------- Topics (~5 min)''' 
1. Chih-Ping Wang ------- RCM results of bubbles 
2. Jiang Liu ----------------- R1/R2 currents as a collective result of very intense and localized FACs in the tail 
3. Brian Swiger ----------- ~keV electron enhancements in the tail from THEMIS, correlation to AE 
4. Andrei Runov (?) ------ Comparing injections at THEMIS with LANL 
5. Sasha Ukhorskiy ------- Ion acceleration and transport from the tail to the inner magnetosphere, the effects of trapping, adiabaticity, and the role of charge 
6. Anton Artemyev -------- Particle energization: adiabatic vs. nonadiabatic 
7. Xiangnig Chu ----------- Broadband waves on the dipolarization front in the inner magnetosphere 
8. Shin Ohtani ------------- Statistical study of two-point measurements of dipolarization and the result shows earthward propagation 
9. Ryan Dewey ------------ Dipolarization effects at Mercury and comparisons to Earth 

=== 1800-2100: Posters ===

== Wednesday, June 20 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''IMAG tutorial''': ''Harlan Spence''

* '''Student invited tutorial''': ''David Sibeck''

=== 1030-1200: Splinter Sessions ===

==== [Joint] ULF wave Modeling, Effects, and Applications + Modeling Methods and Validation ====
'''ULF wave modeling challenge'''

Overview of the ULF wave modeling challenge, including discussion of the ULF wave challenge event on 27-28 May 2017 (http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_ULF_Wave_Modeling%2C_Effects%2C_and_Applications) and coordinated analysis aimed at identifying additional science targets for the modeling challenge.

*1. Brief ULF wave poster overviews (Thursday posters)

*2. Mike Hartinger: ULF wave modeling challenge event overview, discussion of challenge targets (continuing during session)

*3. Mariko Teramoto: ARASE ULF wave observations during challenge event

*4. Sam Califf: GOES-14 and 16 observations during the ULF wave challenge event, Data Discussion

*5. Toshi Nishimura: PFISR measurements of the 27-28 May 2017 ULF waves

*6. Dogacan Su Ozturk: The modeling study of the 27 March 2017 Event

*7. Xiaochen Shen: GEM Challenge Event: ULF wave-related electron and proton precipitation/negative dynamic pressure pulse driven EMIC wave

*8. Others discuss when their figures/summary plots in event overview pdf are presented…

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Geospace Systems Science ====

“Progress in Systems Science”. This session will be comprised of short oral presentations highlighting this year’s progress. Speakers will include

1. Brian Walsh
Topic: on solar wind propagation and uncertainties
2. Misha Sitnov
Topic: on data-mining efforts in empirical reconstruction of substorms
3. Alexander Lipatov
“Effects of transmitted interplanetary impulse interaction with plasmaspheric plume. First results from 3-D hybrid kinetic modeling”
4. Shin Ohtani
TBA
5. Lynn Kistler
Topic: the sawtooth project
6. Katariina Nykyri
TBA
7. Joe Borovsky
“A Composite Index of Magnetospheric Activity”

=== 1330-1500: Splinter Sessions ===

==== [FG] Modeling Methods and Validation ====
This session will include talks on general validation topics, followed by a discussion of validation at GEM.

- Mike Liemohn: ILWS-CCMC “metrics for modeling geomagnetic indices” 
- Adam Kellerman: "Application Usability Levels: A framework for objectively measuring a projects progress towards specific applications.” 
and: "Verification of the UCLA real-time data assimilative VERB code over the 2016-2018 period of operation." 
- Lutz Rastaetter: New visualizations and metrics 
- Misha Sitnov: “Global MHD validation of substorms and implications for kinetic simulations” 
- Nathaniel Frissell: "Modeling Amateur Radio Soundings of the Ionospheric Response to the 2017 Great American Eclipse" 
- MM&V Co-chairs (presented by Katherine Garcia-Sage): GEM Validation - Issues and Ideas 

Following the speakers, we will have a discussion on ideas and issues for organizing validation at GEM.

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''1.''' '''Robert Allen''': Cassini observations of the distant magnetotail and sheath

'''2.''' '''Lin Yu et al. (presented by Jay Johnson)''': Global hybrid simulation and THEMIS and DMSP observations

'''3.''' '''Joachim Birn''': Current diversion and energy flow and conversion associated with the substorm current wedge

'''4.''' '''Jiang Liu''': Field-aligned currents from Swarm

'''5.''' '''Xiaochen Shen''': Kelvin-Helmholtz waves in mid-tail

'''6.''' '''San Lu''': PIC simulation result on the magnetotail dawn-dusk asymmetry

'''7.''' '''Anton Artemyev''': 3D picture of thin current sheet formation

'''8.''' '''Andrei Runov''': Current sheet structure at lunar distances

'''9.''' '''Chih-Ping Wang''': Update on mid-tail dynamics observed by ARTEMIS

==== [FG] Geospace Systems Science ====

“Geospace Systems Science: Looking Ahead”. This is the final (5th-year) session of the GSS Focus Group. This session will be an audience discussion to assess the systems-science approach to understanding geospace and to consider new ideas for the future.

=== 1530-1700: Splinter Sessions ===

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''Modeling challenge:''' We will discuss candidate events for next modeling challenge

'''Candidate events:'''

'''1. Magnetotail length during N IMF:''' 2010-10-22, Two ARTEMIS tail conjunction

'''2. Impact of small solar wind dynamic pressure on the magnetotail:''' 2017-09-06, Geotail-ARTEMIS midnight conjunction

'''3. Magnetotail response to transition from N IMF to S IMF: 2017-07-09:''' GOES-Geotail-MMS-ARTEMIS midnight conjunction

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Weichao Tu and Steve Morley''

'''1. Mary Hudson (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Enhancements

'''2. Alex Boyd''': What Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era

'''3. Hong Zhao''': Effects of Solar Wind and Magnetospheric Processes on the Ultra-Relativistic Electron Acceleration in the Outer Radiation Belt

'''4. Adam Kellerman''': Quantitative analysis of the radiation-belt electron phase-space-density response to stream-interaction regions utilizing the data-assimilative VERB code

'''5. Zhao Li''': Relativistic electron advection during CME-shock driven storms

'''6. Leng Ying Khoo''': On the Initial Enhancements of Energetic Electrons and the Innermost Plasmapause Locations During Storm Periods

'''7. Dedong Wang''': VERB Simulation for GEM Challenge Events

'''8. Ivan Vasko''': Electrostatic Steepening of Whistler Waves

'''9. Anton Artemyev''': Electron nonlinear resonant interaction with short and intense parallel chorus wave-packets

'''10. (walk-in) Scot Elkington''': Test Particle/SDE Simulations of a Stormtime Enhancement Event

'''11. (walk-in) Xiaojia Zhang''': Properties of intense field-aligned lower-band chorus waves: implications for nonlinear wave-particle interactions

==== [Joint] Magnetic Reconnection in the Age of the Heliophysics System Observatory + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

== Thursday, June 21 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

'''Agency reports:'''
* NSF - ''Carrie Black, Mike Wiltberger''
* NOAA - ''Howard Singer''
* NASA - ''Jim Spann''
* Air Force - ''James McCollough''
* LPAG - ''Matina Gkioulidou et al.''

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Jay Albert and Wen Li''

'''1. Sasha Ukhorskiy (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Dropouts

'''2. Seth Claudepierre''': Empirical estimates of electron lifetimes in the radiation belts

'''3. Zheng Xiang''': A statistical survey of radiation belt dropouts observed by Van Allen Probes

'''4. Joe Borovsky''': MeV-Electron Dropouts without MeV-Proton Dropouts

'''5. Luisa Capannolo''': Understanding the driver of energetic electron precipitation using coordinated multi-satellite measurements (24 September 2013 Challenge Event)

'''6. Mark Engebretson''': EMIC wave events during the four GEM QARBM challenge intervals

'''7. Armando Maldonado''': On the diffusion rates of electron bounce resonant scattering by magnetosonic waves

'''8. Oleksiy Agapitov''': Chorus-microburst relations and the corresponding scaling

'''9. Alexander Drozdov''': Modeling of a non-storm dropout event

'''10. (walk-in) Robyn Millan''': Newly selected REAL CubeSat Mission

'''11. (walk-in) Poorya Hosseini''': Whistler wave-particle interaction in the Earth's radiation belts

==== Ground Magnetometer Array Group ====

=== 1330-1500: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== SPEDAS Demo and Tutorial (General/New Users) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] Modeling Methods and Validation: Conductance Challenge Session ====

- Geoff Crowley 
- Slides from Steve Kaeppler 
- Slides from Ryan McGranaghan 
- George Khazanov 
- Margaret Chen 
- Agnit Mukhopadhyay 

The goal for this session is to discuss data/model results from the specific challenge days, as well as data/model parameters, uncertainties, assumptions, and boundary conditions, with an eye toward making comparisons for these events (including model-model, data-data, and model-data comparisons).

After the speakers, we’ll determine whether there is anyone else who we need to get involved in the challenge events and identify next steps for making comparisons and moving the challenge forward.

'''Challenge events:''' 
#1 2016 Oct 13-15 
#2 2013 March 17 
'''Bonus storms (selected by the CCMC Space Weather Capabilities Auroral Assessment team):''' 
#3 2015 Jun 21-24 
#4 2012 March 9 

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Steve Morley and Jay Albert''

'''1. Steve Morley''': Summary of RB Enhancement and Dropout Challenges

'''2. Lauren Blum''': Newly selected CubeSat mission at GTO orbit

'''3. Xinlin Li''': Newly selected CubeSat: Inner Radiation Belt Experiment (CIRBE)

'''4. James McCollough''': Update on DSX Mission

'''5. Panel Discussions''': Remaining Open Questions and Future Directions of Radiation Belt Studies

'''Panelists: Jacob Bortnik, Allison Jaynes, Wen Li, Geoff Reeves, and Drew Turner'''

=== 1800-2100: Posters ===

== Friday, June 22 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Student poster awards & Jacob poll results''' (30 min)

* '''MIC panel''': ''Shin Ohtani'' (moderator), ''Brian Anderson, Bill Bristow, Bob Lysak, Peter Chi, Bill Lotko'' (1 hour)

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

=== 1330-1500: Splinter Sessions ===

==== [Joint] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) + Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

==== SPEDAS Demo and Tutorial (Analyzing MMS data with SPEDAS) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) ====

== Saturday, June 23 ==

'''GEM-CEDAR Joint Workshop'''

=== 0830-1000: Multiscale aspects of the energy budget ===

=== 1030-1200: Interhemispheric processes, hemispheric symmetries & asymmetries ===

=== 1330-1500: What is needed to make progress? ===

=== 1530-1700: Data science in Geospace ===

2018 GEM Workshop and GEM-CEDAR Joint Workshop

2018-06-16T18:35:33Z

Kylemurphy: /* [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms */

'''Detailed Schedule'''

Below is a detailed session schedule with names of tentative speakers provided by Focus Group Leaders and Research Area Coordinators. The information here serves as a rough guide for those who wish to know the most updated session plans. Due to the dynamic nature of the Workshop, Focus Groups may continue to revise their agenda as needed.

All other information about the 2018 GEM Summer Workshop can be found at the [http://www.cpe.vt.edu/gem/index.html GEM Workshop Coordinator site].

== Monday, June 18 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Opening and welcome''': ''Jacob Bortnik'' (15 min)

* '''SWMI panel''': ''Katariina Nykyri'' (moderator), ''Bob McPherron, Vassilis Angelopoulos, Toshi Nishimura, Jay Johnson, Heli Hietala'' (45 min)

* '''Mission talks''': RBSP - ''Sasha Ukhorskiy''; THEMIS - ''Vassilis Angelopoulos''; MMS - ''Li-Jen Chen/Rick Wilder''; NSF Ground-based - ''Mark Engebretson/Eftyhia Zesta'' (30 min)

=== 1030-1200: Splinter Sessions ===

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [Joint] ULF wave Modeling, Effects, and Applications + Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====
'''ULF waves during particle injections and dipolarizations'''
This session focuses on the relationship between particle injections/dipolarizations and Pc4-5/Pi2/EMIC waves - e.g., Why are waves driven in only some events? Do waves impact the ring current/radiation belts?

*1. Discussion of Session Topic

*2. Bob Lysak -- Ionospheric Conductivity Effects on Pi2 Pulsations

*3. Mike Hartinger -- Pi2 waves during an extended period with stable plasmapause location and variable geomagnetic activity

*4. Toshi Nishimura -- Ionosphere observations of Pc5 ULF waves during 2018 HGSO conjunctions

*5. Xueling Shi -- Long-lasting poloidal ULF waves observed by multiple satellite and SuperDARN HF radars

*6. Jian Yang -- New RCM-I simulation results for buoyancy waves

*7. Dick Wolf -- Theory of Buoyancy Waves

*8. Yan Song -- What Causes the Substorm Expansion Phase and Associated ULF Waves?

=== 1330-1500: Splinter Sessions ===

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

* 1. Introduction to Event Studies: [http://gem.epss.ucla.edu/mediawikiwiki/images/5/59/GEM_2018_DipolarizationSubstorm_ChallengeEvents.pdf Challenge Events]
* 2. Christine Gabrielse (Riometers/THEMIS)
* 3. Toshi Nishimura (ASI)
* 4. Drew Turner (MMS, Van Allen)
* 5. Amy Keese (Twins)
* 6. Lauren Blum (Van Allen, EMIC)
* 7. Colin Komar (SWMF)
* 8. Kyle Murphy (LANL, ULF, SuperDARN)

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''Recent advances in ULF wave research'''

*1. Overview of focus group goals and recent progress

*2. Brief ULF wave poster overviews (Tuesday posters)

*3. Kazue Takahashi -- Observation of nightside ULF waves by RBSP and Arase

*4. Tom Elsden -- Broadband Excitation of 3D Alfven Resonances (FLRs) in an MHD Waveguide

*5. Boyi Wang -- 2-D structure of foreshock driven Pc5 ULF waves observed by the THEMIS satellites and South Pole imager

*6. Xiaochen Shen -- Foreshock transient-driven ultra-low frequency (ULF) waves with dawn-dusk asymmetry of wave power

*7. Chih-Ping Wang -- ULF waves possibly driven by tailward propagation of foreshock perturbations

*8. Allison Jaynes -- Fast diffusion of ultra-relativistic electrons in the outer radiation belt: 17 March 2015 storm event

*9. Rualdo Soto -- The Drift-Mirror instability in Earth's inner magnetosphere

*10. Martin Archer/Mike Hartinger -- Results from Sonification and Citizen Science of Magnetospheric ULF waves

=== 1530-1700: Splinter Sessions ===

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''EMIC wave generation, propagation, and interactions''': Discussion leaders Alexander Drozdov and Maria Usanova

The generation mechanisms of EMIC waves, their effects on trapped particles, and their propagation through the M-I system are challenging topics that involve multiple GEM research areas. Despite several years of observations and improved global wave statistics, there are many unresolved questions that limit further investigation, modeling and prediction of processes in the inner magnetosphere involving EMIC waves. This session includes presentations and discussion that unites recent findings in different areas of EMIC wave research and identifies observations/models most needed to address unresolved questions.

*1. Dedong Wang -- EMIC wave observations from Van Allen Probes and MMS

*2. Mark Engebretson -- MMS, Van Allen Probes, and ground based magnetometer observations of EMIC waves associated with a modest interplanetary shock

*3. Maria Usanova -- MMS Observations of Harmonic Electromagnetic Cyclotron Waves

*4. Naritoshi Kitamura -- Direct measurements of energy transfer from hot H+ to EMIC waves by MMS

*5. Bruce Fritz -- ELF Whistler Dependence on a Sunlit Ionosphere

*6. Chae-Woo Jun -- EMIC waves associated with/without the injection inside/outside the plasmapause

*7. Hyomin Kim -- Injection-associated EMIC waves

*8. Sebastian Cervantes -- EMIC wave parameterization in radiation belt reanalysis

*9. Maria Usanova -- Long-term correlation of EMIC wave activity and radiation belt flux variations

*10. Alexander Drozdov -- The effects due to the EMIC waves in the VERB code modeling

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

=== 1730-1830: Plenary Session ===

== Tuesday, June 19 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''MPS tutorial''': ''Slava Merkin''

* '''GSM tutorial''': ''Li-Jen Chen''

=== 1030-1200: Splinter Sessions ===

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
Inner magnetosphere-ionosphere coupling
*Harneet Sangha: The Field-Aligned Current Structure Associated with Sub-Auroral Polarization Streams
*Bea Gallardo-Lacourt: STEVE: An optical structure in the subauroral region. Location and geomagnetic conditions during its formation
*Yiqun Yu: Self-consistent modeling of magnetosphereic precipitation and response in the ionosphere
*Nithin Sivadas: Energetic precipitation during substorms: simultaneously measured in the magnetosphere and ionosphere
*Xiangning Chu: Unexpected storm-time plasmaspheric density increase at low L shells on the nightside

=== 1330-1500: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
particle and wave dynamics
*Yue Chao：Oxygen ion behavior in Earth’s ring current dynamics based on Van Allen Probes observations
*Mykhaylo Shumko: Evidence of Microbursts Observed Near the Equatorial Plane in the Outer Van Allen Radiation Belt
*Run Shi: Properties of whistler mode waves in plasmasphere and plasmaspheric plume
*Qianli Ma: Ion Heating by Electromagnetic Ion Cyclotron Waves in the Inner Magnetosphere’
*Sam Bingham: The development of source electrons and chorus wave activity during CME and CIR storms
*Poorya Hosseini: TBD

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Christine Gabrielse, Drew Turner, David Malaspina, Matina Gkioulidou, Slava Merkin

We will have a panel discussion on the questions below with an aim to communicate different types of models' capabilities to answer different science questions, as well as a discussion on how we can move forward towards improved, data-informed models. We invite the audience to participate in the discussion and to provide input as to how we, as a field, can move forward to better understand how dipolarizations affect the inner magnetosphere, and/or how they are affected by the coupled magnetosphere-ionosphere system.

'''Panelists''' 
Misha Sitnov 
San Lu 
Jimmy Raeder 
Yann Kempf 
Colby Lemon 
Katie Garcia-Sage 

'''Panel Questions'''

1) Given our current modeling capabilities, discuss which kinds of models are best at capturing which aspects of dipolarization events and their effects in the magnetosphere.

2) What determines the dipolarization scale size in different models? (e.g., physical description, boundary conditions, model input parameters, ionosphere conditions, etc.?)

3) The transition region is where both inertia and energy dependent drifts are important. No existing models treat that region correctly.
(a) How do we move forward?

(b) Or, more specifically, address the question of dipolarization front deceleration:
(i) How do various models treat dipolarization deceleration as they approach the inner magnetosphere?
(ii) What processes are decelerating the fronts in the models?
(iii) What inner magnetosphere processes are missing (e.g. plasmasphere, complex ionospheric conductivity models) and does excluding these processes lead to different deceleration predictions?

(c) And/or address:
(i) What are the relative roles of ExB, energy-dependent drifts and particle trapping in transport and energization in the transition region?
(ii) To what extent are these processes adiabatic for particles of different energies?
(iii) What is their overall contribution to the ring current build up?

Although the questions are focusing on dipolarization implementation into the current magnetospheric models, participation of data analysts is highly desired and encouraged in order to establish an observational framework for the models.

=== 1530-1700: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
*Report on the spacecraft charging challenge
*We will have a panel discussion on remaining scientific questions in the coupled inner magnetosphere system and on future plans regarding how we will continue and move forward to better understand the cross-energy/population coupling processes and interactions with tail and ionosphere. We also cordially invite the audience to participate and contribute.

*Panelist: Mike Liemohn, Vania Jordanova, George Khazanov, Yihua Zheng

==== [Joint] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction + Modeling Methods and Validation ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Drew Turner, Christine Gabrielse, David Malaspina, Slava Merkin, Matina Gkioulidou

This is an informal, workshop-style session that we opened up to contributed slides in order to provide the community a mouthpiece to focus on any brand new results, outstanding challenges, and/or outstanding questions concerning the research.

Although we provide the list of speakers, we point out that some of them may present during our panel-led discussion at 1:30.

'''Speakers ------------------- Topics (~5 min)''' 
1. Chih-Ping Wang ------- RCM results of bubbles 
2. Jiang Liu ----------------- R1/R2 currents as a collective result of very intense and localized FACs in the tail 
3. Brian Swiger ----------- ~keV electron enhancements in the tail from THEMIS, correlation to AE 
4. Andrei Runov (?) ------ Comparing injections at THEMIS with LANL 
5. Sasha Ukhorskiy ------- Ion acceleration and transport from the tail to the inner magnetosphere, the effects of trapping, adiabaticity, and the role of charge 
6. Anton Artemyev -------- Particle energization: adiabatic vs. nonadiabatic 
7. Xiangnig Chu ----------- Broadband waves on the dipolarization front in the inner magnetosphere 
8. Shin Ohtani ------------- Statistical study of two-point measurements of dipolarization and the result shows earthward propagation 
9. Ryan Dewey ------------ Dipolarization effects at Mercury and comparisons to Earth 

=== 1800-2100: Posters ===

== Wednesday, June 20 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''IMAG tutorial''': ''Harlan Spence''

* '''Student invited tutorial''': ''David Sibeck''

=== 1030-1200: Splinter Sessions ===

==== [Joint] ULF wave Modeling, Effects, and Applications + Modeling Methods and Validation ====
'''ULF wave modeling challenge'''

Overview of the ULF wave modeling challenge, including discussion of the ULF wave challenge event on 27-28 May 2017 (http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_ULF_Wave_Modeling%2C_Effects%2C_and_Applications) and coordinated analysis aimed at identifying additional science targets for the modeling challenge.

*1. Brief ULF wave poster overviews (Thursday posters)

*2. Mike Hartinger: ULF wave modeling challenge event overview, discussion of challenge targets (continuing during session)

*3. Mariko Teramoto: ARASE ULF wave observations during challenge event

*4. Sam Califf: GOES-14 and 16 observations during the ULF wave challenge event, Data Discussion

*5. Toshi Nishimura: PFISR measurements of the 27-28 May 2017 ULF waves

*6. Dogacan Su Ozturk: The modeling study of the 27 March 2017 Event

*7. Xiaochen Shen: GEM Challenge Event: ULF wave-related electron and proton precipitation/negative dynamic pressure pulse driven EMIC wave

*8. Others discuss when their figures/summary plots in event overview pdf are presented…

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Geospace Systems Science ====

“Progress in Systems Science”. This session will be comprised of short oral presentations highlighting this year’s progress. Speakers will include

1. Brian Walsh
Topic: on solar wind propagation and uncertainties
2. Misha Sitnov
Topic: on data-mining efforts in empirical reconstruction of substorms
3. Alexander Lipatov
“Effects of transmitted interplanetary impulse interaction with plasmaspheric plume. First results from 3-D hybrid kinetic modeling”
4. Shin Ohtani
TBA
5. Lynn Kistler
Topic: the sawtooth project
6. Katariina Nykyri
TBA
7. Joe Borovsky
“A Composite Index of Magnetospheric Activity”

=== 1330-1500: Splinter Sessions ===

==== [FG] Modeling Methods and Validation ====
This session will include talks on general validation topics, followed by a discussion of validation at GEM.

- Mike Liemohn: ILWS-CCMC “metrics for modeling geomagnetic indices” 
- Adam Kellerman: "Application Usability Levels: A framework for objectively measuring a projects progress towards specific applications.” 
and: "Verification of the UCLA real-time data assimilative VERB code over the 2016-2018 period of operation." 
- Lutz Rastaetter: New visualizations and metrics 
- Misha Sitnov: “Global MHD validation of substorms and implications for kinetic simulations” 
- Nathaniel Frissell: "Modeling Amateur Radio Soundings of the Ionospheric Response to the 2017 Great American Eclipse" 
- MM&V Co-chairs (presented by Katherine Garcia-Sage): GEM Validation - Issues and Ideas 

Following the speakers, we will have a discussion on ideas and issues for organizing validation at GEM.

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''1.''' '''Robert Allen''': Cassini observations of the distant magnetotail and sheath

'''2.''' '''Lin Yu et al. (presented by Jay Johnson)''': Global hybrid simulation and THEMIS and DMSP observations

'''3.''' '''Joachim Birn''': Current diversion and energy flow and conversion associated with the substorm current wedge

'''4.''' '''Jiang Liu''': Field-aligned currents from Swarm

'''5.''' '''Xiaochen Shen''': Kelvin-Helmholtz waves in mid-tail

'''6.''' '''San Lu''': PIC simulation result on the magnetotail dawn-dusk asymmetry

'''7.''' '''Anton Artemyev''': 3D picture of thin current sheet formation

'''8.''' '''Andrei Runov''': Current sheet structure at lunar distances

'''9.''' '''Chih-Ping Wang''': Update on mid-tail dynamics observed by ARTEMIS

==== [FG] Geospace Systems Science ====

“Geospace Systems Science: Looking Ahead”. This is the final (5th-year) session of the GSS Focus Group. This session will be an audience discussion to assess the systems-science approach to understanding geospace and to consider new ideas for the future.

=== 1530-1700: Splinter Sessions ===

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''Modeling challenge:''' We will discuss candidate events for next modeling challenge

'''Candidate events:'''

'''1. Magnetotail length during N IMF:''' 2010-10-22, Two ARTEMIS tail conjunction

'''2. Impact of small solar wind dynamic pressure on the magnetotail:''' 2017-09-06, Geotail-ARTEMIS midnight conjunction

'''3. Magnetotail response to transition from N IMF to S IMF: 2017-07-09:''' GOES-Geotail-MMS-ARTEMIS midnight conjunction

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Weichao Tu and Steve Morley''

'''1. Mary Hudson (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Enhancements

'''2. Alex Boyd''': What Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era

'''3. Hong Zhao''': Effects of Solar Wind and Magnetospheric Processes on the Ultra-Relativistic Electron Acceleration in the Outer Radiation Belt

'''4. Adam Kellerman''': Quantitative analysis of the radiation-belt electron phase-space-density response to stream-interaction regions utilizing the data-assimilative VERB code

'''5. Zhao Li''': Relativistic electron advection during CME-shock driven storms

'''6. Leng Ying Khoo''': On the Initial Enhancements of Energetic Electrons and the Innermost Plasmapause Locations During Storm Periods

'''7. Dedong Wang''': VERB Simulation for GEM Challenge Events

'''8. Ivan Vasko''': Electrostatic Steepening of Whistler Waves

'''9. Anton Artemyev''': Electron nonlinear resonant interaction with short and intense parallel chorus wave-packets

'''10. (walk-in) Scot Elkington''': Test Particle/SDE Simulations of a Stormtime Enhancement Event

'''11. (walk-in) Xiaojia Zhang''': Properties of intense field-aligned lower-band chorus waves: implications for nonlinear wave-particle interactions

==== [Joint] Magnetic Reconnection in the Age of the Heliophysics System Observatory + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

== Thursday, June 21 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

'''Agency reports:'''
* NSF - ''Carrie Black, Mike Wiltberger''
* NOAA - ''Howard Singer''
* NASA - ''Jim Spann''
* Air Force - ''James McCollough''
* LPAG - ''Matina Gkioulidou et al.''

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Jay Albert and Wen Li''

'''1. Sasha Ukhorskiy (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Dropouts

'''2. Seth Claudepierre''': Empirical estimates of electron lifetimes in the radiation belts

'''3. Zheng Xiang''': A statistical survey of radiation belt dropouts observed by Van Allen Probes

'''4. Joe Borovsky''': MeV-Electron Dropouts without MeV-Proton Dropouts

'''5. Luisa Capannolo''': Understanding the driver of energetic electron precipitation using coordinated multi-satellite measurements (24 September 2013 Challenge Event)

'''6. Mark Engebretson''': EMIC wave events during the four GEM QARBM challenge intervals

'''7. Armando Maldonado''': On the diffusion rates of electron bounce resonant scattering by magnetosonic waves

'''8. Oleksiy Agapitov''': Chorus-microburst relations and the corresponding scaling

'''9. Alexander Drozdov''': Modeling of a non-storm dropout event

'''10. (walk-in) Robyn Millan''': Newly selected REAL CubeSat Mission

'''11. (walk-in) Poorya Hosseini''': Whistler wave-particle interaction in the Earth's radiation belts

==== Ground Magnetometer Array Group ====

=== 1330-1500: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== SPEDAS Demo and Tutorial (General/New Users) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] Modeling Methods and Validation: Conductance Challenge Session ====

- Geoff Crowley 
- Slides from Steve Kaeppler 
- Slides from Ryan McGranaghan 
- George Khazanov 
- Margaret Chen 
- Agnit Mukhopadhyay 

The goal for this session is to discuss data/model results from the specific challenge days, as well as data/model parameters, uncertainties, assumptions, and boundary conditions, with an eye toward making comparisons for these events (including model-model, data-data, and model-data comparisons).

After the speakers, we’ll determine whether there is anyone else who we need to get involved in the challenge events and identify next steps for making comparisons and moving the challenge forward.

'''Challenge events:''' 
#1 2016 Oct 13-15 
#2 2013 March 17 
'''Bonus storms (selected by the CCMC Space Weather Capabilities Auroral Assessment team):''' 
#3 2015 Jun 21-24 
#4 2012 March 9 

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Steve Morley and Jay Albert''

'''1. Steve Morley''': Summary of RB Enhancement and Dropout Challenges

'''2. Lauren Blum''': Newly selected CubeSat mission at GTO orbit

'''3. Xinlin Li''': Newly selected CubeSat: Inner Radiation Belt Experiment (CIRBE)

'''4. James McCollough''': Update on DSX Mission

'''5. Panel Discussions''': Remaining Open Questions and Future Directions of Radiation Belt Studies

'''Panelists: Jacob Bortnik, Allison Jaynes, Wen Li, Geoff Reeves, and Drew Turner'''

=== 1800-2100: Posters ===

== Friday, June 22 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Student poster awards & Jacob poll results''' (30 min)

* '''MIC panel''': ''Shin Ohtani'' (moderator), ''Brian Anderson, Bill Bristow, Bob Lysak, Peter Chi, Bill Lotko'' (1 hour)

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

=== 1330-1500: Splinter Sessions ===

==== [Joint] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) + Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

==== SPEDAS Demo and Tutorial (Analyzing MMS data with SPEDAS) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) ====

== Saturday, June 23 ==

'''GEM-CEDAR Joint Workshop'''

=== 0830-1000: Multiscale aspects of the energy budget ===

=== 1030-1200: Interhemispheric processes, hemispheric symmetries & asymmetries ===

=== 1330-1500: What is needed to make progress? ===

=== 1530-1700: Data science in Geospace ===

2018 GEM Workshop and GEM-CEDAR Joint Workshop

2018-06-16T18:34:09Z

Kylemurphy: /* [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms */

'''Detailed Schedule'''

Below is a detailed session schedule with names of tentative speakers provided by Focus Group Leaders and Research Area Coordinators. The information here serves as a rough guide for those who wish to know the most updated session plans. Due to the dynamic nature of the Workshop, Focus Groups may continue to revise their agenda as needed.

All other information about the 2018 GEM Summer Workshop can be found at the [http://www.cpe.vt.edu/gem/index.html GEM Workshop Coordinator site].

== Monday, June 18 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Opening and welcome''': ''Jacob Bortnik'' (15 min)

* '''SWMI panel''': ''Katariina Nykyri'' (moderator), ''Bob McPherron, Vassilis Angelopoulos, Toshi Nishimura, Jay Johnson, Heli Hietala'' (45 min)

* '''Mission talks''': RBSP - ''Sasha Ukhorskiy''; THEMIS - ''Vassilis Angelopoulos''; MMS - ''Li-Jen Chen/Rick Wilder''; NSF Ground-based - ''Mark Engebretson/Eftyhia Zesta'' (30 min)

=== 1030-1200: Splinter Sessions ===

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [Joint] ULF wave Modeling, Effects, and Applications + Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====
'''ULF waves during particle injections and dipolarizations'''
This session focuses on the relationship between particle injections/dipolarizations and Pc4-5/Pi2/EMIC waves - e.g., Why are waves driven in only some events? Do waves impact the ring current/radiation belts?

*1. Discussion of Session Topic

*2. Bob Lysak -- Ionospheric Conductivity Effects on Pi2 Pulsations

*3. Mike Hartinger -- Pi2 waves during an extended period with stable plasmapause location and variable geomagnetic activity

*4. Toshi Nishimura -- Ionosphere observations of Pc5 ULF waves during 2018 HGSO conjunctions

*5. Xueling Shi -- Long-lasting poloidal ULF waves observed by multiple satellite and SuperDARN HF radars

*6. Jian Yang -- New RCM-I simulation results for buoyancy waves

*7. Dick Wolf -- Theory of Buoyancy Waves

*8. Yan Song -- What Causes the Substorm Expansion Phase and Associated ULF Waves?

=== 1330-1500: Splinter Sessions ===

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

* 1. Introduction to Event Studies
* 2. Christine Gabrielse (Riometers/THEMIS)
* 3. Toshi Nishimura (ASI)
* 4. Drew Turner (MMS, Van Allen)
* 5. Amy Keese (Twins)
* 6. Lauren Blum (Van Allen, EMIC)
* 7. Colin Komar (SWMF)
* 8. Kyle Murphy (LANL, ULF, SuperDARN)

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''Recent advances in ULF wave research'''

*1. Overview of focus group goals and recent progress

*2. Brief ULF wave poster overviews (Tuesday posters)

*3. Kazue Takahashi -- Observation of nightside ULF waves by RBSP and Arase

*4. Tom Elsden -- Broadband Excitation of 3D Alfven Resonances (FLRs) in an MHD Waveguide

*5. Boyi Wang -- 2-D structure of foreshock driven Pc5 ULF waves observed by the THEMIS satellites and South Pole imager

*6. Xiaochen Shen -- Foreshock transient-driven ultra-low frequency (ULF) waves with dawn-dusk asymmetry of wave power

*7. Chih-Ping Wang -- ULF waves possibly driven by tailward propagation of foreshock perturbations

*8. Allison Jaynes -- Fast diffusion of ultra-relativistic electrons in the outer radiation belt: 17 March 2015 storm event

*9. Rualdo Soto -- The Drift-Mirror instability in Earth's inner magnetosphere

*10. Martin Archer/Mike Hartinger -- Results from Sonification and Citizen Science of Magnetospheric ULF waves

=== 1530-1700: Splinter Sessions ===

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''EMIC wave generation, propagation, and interactions''': Discussion leaders Alexander Drozdov and Maria Usanova

The generation mechanisms of EMIC waves, their effects on trapped particles, and their propagation through the M-I system are challenging topics that involve multiple GEM research areas. Despite several years of observations and improved global wave statistics, there are many unresolved questions that limit further investigation, modeling and prediction of processes in the inner magnetosphere involving EMIC waves. This session includes presentations and discussion that unites recent findings in different areas of EMIC wave research and identifies observations/models most needed to address unresolved questions.

*1. Dedong Wang -- EMIC wave observations from Van Allen Probes and MMS

*2. Mark Engebretson -- MMS, Van Allen Probes, and ground based magnetometer observations of EMIC waves associated with a modest interplanetary shock

*3. Maria Usanova -- MMS Observations of Harmonic Electromagnetic Cyclotron Waves

*4. Naritoshi Kitamura -- Direct measurements of energy transfer from hot H+ to EMIC waves by MMS

*5. Bruce Fritz -- ELF Whistler Dependence on a Sunlit Ionosphere

*6. Chae-Woo Jun -- EMIC waves associated with/without the injection inside/outside the plasmapause

*7. Hyomin Kim -- Injection-associated EMIC waves

*8. Sebastian Cervantes -- EMIC wave parameterization in radiation belt reanalysis

*9. Maria Usanova -- Long-term correlation of EMIC wave activity and radiation belt flux variations

*10. Alexander Drozdov -- The effects due to the EMIC waves in the VERB code modeling

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

=== 1730-1830: Plenary Session ===

== Tuesday, June 19 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''MPS tutorial''': ''Slava Merkin''

* '''GSM tutorial''': ''Li-Jen Chen''

=== 1030-1200: Splinter Sessions ===

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
Inner magnetosphere-ionosphere coupling
*Harneet Sangha: The Field-Aligned Current Structure Associated with Sub-Auroral Polarization Streams
*Bea Gallardo-Lacourt: STEVE: An optical structure in the subauroral region. Location and geomagnetic conditions during its formation
*Yiqun Yu: Self-consistent modeling of magnetosphereic precipitation and response in the ionosphere
*Nithin Sivadas: Energetic precipitation during substorms: simultaneously measured in the magnetosphere and ionosphere
*Xiangning Chu: Unexpected storm-time plasmaspheric density increase at low L shells on the nightside

=== 1330-1500: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
particle and wave dynamics
*Yue Chao：Oxygen ion behavior in Earth’s ring current dynamics based on Van Allen Probes observations
*Mykhaylo Shumko: Evidence of Microbursts Observed Near the Equatorial Plane in the Outer Van Allen Radiation Belt
*Run Shi: Properties of whistler mode waves in plasmasphere and plasmaspheric plume
*Qianli Ma: Ion Heating by Electromagnetic Ion Cyclotron Waves in the Inner Magnetosphere’
*Sam Bingham: The development of source electrons and chorus wave activity during CME and CIR storms
*Poorya Hosseini: TBD

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Christine Gabrielse, Drew Turner, David Malaspina, Matina Gkioulidou, Slava Merkin

We will have a panel discussion on the questions below with an aim to communicate different types of models' capabilities to answer different science questions, as well as a discussion on how we can move forward towards improved, data-informed models. We invite the audience to participate in the discussion and to provide input as to how we, as a field, can move forward to better understand how dipolarizations affect the inner magnetosphere, and/or how they are affected by the coupled magnetosphere-ionosphere system.

'''Panelists''' 
Misha Sitnov 
San Lu 
Jimmy Raeder 
Yann Kempf 
Colby Lemon 
Katie Garcia-Sage 

'''Panel Questions'''

1) Given our current modeling capabilities, discuss which kinds of models are best at capturing which aspects of dipolarization events and their effects in the magnetosphere.

2) What determines the dipolarization scale size in different models? (e.g., physical description, boundary conditions, model input parameters, ionosphere conditions, etc.?)

3) The transition region is where both inertia and energy dependent drifts are important. No existing models treat that region correctly.
(a) How do we move forward?

(b) Or, more specifically, address the question of dipolarization front deceleration:
(i) How do various models treat dipolarization deceleration as they approach the inner magnetosphere?
(ii) What processes are decelerating the fronts in the models?
(iii) What inner magnetosphere processes are missing (e.g. plasmasphere, complex ionospheric conductivity models) and does excluding these processes lead to different deceleration predictions?

(c) And/or address:
(i) What are the relative roles of ExB, energy-dependent drifts and particle trapping in transport and energization in the transition region?
(ii) To what extent are these processes adiabatic for particles of different energies?
(iii) What is their overall contribution to the ring current build up?

Although the questions are focusing on dipolarization implementation into the current magnetospheric models, participation of data analysts is highly desired and encouraged in order to establish an observational framework for the models.

=== 1530-1700: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
*Report on the spacecraft charging challenge
*We will have a panel discussion on remaining scientific questions in the coupled inner magnetosphere system and on future plans regarding how we will continue and move forward to better understand the cross-energy/population coupling processes and interactions with tail and ionosphere. We also cordially invite the audience to participate and contribute.

*Panelist: Mike Liemohn, Vania Jordanova, George Khazanov, Yihua Zheng

==== [Joint] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction + Modeling Methods and Validation ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Drew Turner, Christine Gabrielse, David Malaspina, Slava Merkin, Matina Gkioulidou

This is an informal, workshop-style session that we opened up to contributed slides in order to provide the community a mouthpiece to focus on any brand new results, outstanding challenges, and/or outstanding questions concerning the research.

Although we provide the list of speakers, we point out that some of them may present during our panel-led discussion at 1:30.

'''Speakers ------------------- Topics (~5 min)''' 
1. Chih-Ping Wang ------- RCM results of bubbles 
2. Jiang Liu ----------------- R1/R2 currents as a collective result of very intense and localized FACs in the tail 
3. Brian Swiger ----------- ~keV electron enhancements in the tail from THEMIS, correlation to AE 
4. Andrei Runov (?) ------ Comparing injections at THEMIS with LANL 
5. Sasha Ukhorskiy ------- Ion acceleration and transport from the tail to the inner magnetosphere, the effects of trapping, adiabaticity, and the role of charge 
6. Anton Artemyev -------- Particle energization: adiabatic vs. nonadiabatic 
7. Xiangnig Chu ----------- Broadband waves on the dipolarization front in the inner magnetosphere 
8. Shin Ohtani ------------- Statistical study of two-point measurements of dipolarization and the result shows earthward propagation 
9. Ryan Dewey ------------ Dipolarization effects at Mercury and comparisons to Earth 

=== 1800-2100: Posters ===

== Wednesday, June 20 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''IMAG tutorial''': ''Harlan Spence''

* '''Student invited tutorial''': ''David Sibeck''

=== 1030-1200: Splinter Sessions ===

==== [Joint] ULF wave Modeling, Effects, and Applications + Modeling Methods and Validation ====
'''ULF wave modeling challenge'''

Overview of the ULF wave modeling challenge, including discussion of the ULF wave challenge event on 27-28 May 2017 (http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_ULF_Wave_Modeling%2C_Effects%2C_and_Applications) and coordinated analysis aimed at identifying additional science targets for the modeling challenge.

*1. Brief ULF wave poster overviews (Thursday posters)

*2. Mike Hartinger: ULF wave modeling challenge event overview, discussion of challenge targets (continuing during session)

*3. Mariko Teramoto: ARASE ULF wave observations during challenge event

*4. Sam Califf: GOES-14 and 16 observations during the ULF wave challenge event, Data Discussion

*5. Toshi Nishimura: PFISR measurements of the 27-28 May 2017 ULF waves

*6. Dogacan Su Ozturk: The modeling study of the 27 March 2017 Event

*7. Xiaochen Shen: GEM Challenge Event: ULF wave-related electron and proton precipitation/negative dynamic pressure pulse driven EMIC wave

*8. Others discuss when their figures/summary plots in event overview pdf are presented…

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Geospace Systems Science ====

“Progress in Systems Science”. This session will be comprised of short oral presentations highlighting this year’s progress. Speakers will include

1. Brian Walsh
Topic: on solar wind propagation and uncertainties
2. Misha Sitnov
Topic: on data-mining efforts in empirical reconstruction of substorms
3. Alexander Lipatov
“Effects of transmitted interplanetary impulse interaction with plasmaspheric plume. First results from 3-D hybrid kinetic modeling”
4. Shin Ohtani
TBA
5. Lynn Kistler
Topic: the sawtooth project
6. Katariina Nykyri
TBA
7. Joe Borovsky
“A Composite Index of Magnetospheric Activity”

=== 1330-1500: Splinter Sessions ===

==== [FG] Modeling Methods and Validation ====
This session will include talks on general validation topics, followed by a discussion of validation at GEM.

- Mike Liemohn: ILWS-CCMC “metrics for modeling geomagnetic indices” 
- Adam Kellerman: "Application Usability Levels: A framework for objectively measuring a projects progress towards specific applications.” 
and: "Verification of the UCLA real-time data assimilative VERB code over the 2016-2018 period of operation." 
- Lutz Rastaetter: New visualizations and metrics 
- Misha Sitnov: “Global MHD validation of substorms and implications for kinetic simulations” 
- Nathaniel Frissell: "Modeling Amateur Radio Soundings of the Ionospheric Response to the 2017 Great American Eclipse" 
- MM&V Co-chairs (presented by Katherine Garcia-Sage): GEM Validation - Issues and Ideas 

Following the speakers, we will have a discussion on ideas and issues for organizing validation at GEM.

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''1.''' '''Robert Allen''': Cassini observations of the distant magnetotail and sheath

'''2.''' '''Lin Yu et al. (presented by Jay Johnson)''': Global hybrid simulation and THEMIS and DMSP observations

'''3.''' '''Joachim Birn''': Current diversion and energy flow and conversion associated with the substorm current wedge

'''4.''' '''Jiang Liu''': Field-aligned currents from Swarm

'''5.''' '''Xiaochen Shen''': Kelvin-Helmholtz waves in mid-tail

'''6.''' '''San Lu''': PIC simulation result on the magnetotail dawn-dusk asymmetry

'''7.''' '''Anton Artemyev''': 3D picture of thin current sheet formation

'''8.''' '''Andrei Runov''': Current sheet structure at lunar distances

'''9.''' '''Chih-Ping Wang''': Update on mid-tail dynamics observed by ARTEMIS

==== [FG] Geospace Systems Science ====

“Geospace Systems Science: Looking Ahead”. This is the final (5th-year) session of the GSS Focus Group. This session will be an audience discussion to assess the systems-science approach to understanding geospace and to consider new ideas for the future.

=== 1530-1700: Splinter Sessions ===

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''Modeling challenge:''' We will discuss candidate events for next modeling challenge

'''Candidate events:'''

'''1. Magnetotail length during N IMF:''' 2010-10-22, Two ARTEMIS tail conjunction

'''2. Impact of small solar wind dynamic pressure on the magnetotail:''' 2017-09-06, Geotail-ARTEMIS midnight conjunction

'''3. Magnetotail response to transition from N IMF to S IMF: 2017-07-09:''' GOES-Geotail-MMS-ARTEMIS midnight conjunction

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Weichao Tu and Steve Morley''

'''1. Mary Hudson (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Enhancements

'''2. Alex Boyd''': What Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era

'''3. Hong Zhao''': Effects of Solar Wind and Magnetospheric Processes on the Ultra-Relativistic Electron Acceleration in the Outer Radiation Belt

'''4. Adam Kellerman''': Quantitative analysis of the radiation-belt electron phase-space-density response to stream-interaction regions utilizing the data-assimilative VERB code

'''5. Zhao Li''': Relativistic electron advection during CME-shock driven storms

'''6. Leng Ying Khoo''': On the Initial Enhancements of Energetic Electrons and the Innermost Plasmapause Locations During Storm Periods

'''7. Dedong Wang''': VERB Simulation for GEM Challenge Events

'''8. Ivan Vasko''': Electrostatic Steepening of Whistler Waves

'''9. Anton Artemyev''': Electron nonlinear resonant interaction with short and intense parallel chorus wave-packets

'''10. (walk-in) Scot Elkington''': Test Particle/SDE Simulations of a Stormtime Enhancement Event

'''11. (walk-in) Xiaojia Zhang''': Properties of intense field-aligned lower-band chorus waves: implications for nonlinear wave-particle interactions

==== [Joint] Magnetic Reconnection in the Age of the Heliophysics System Observatory + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

== Thursday, June 21 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

'''Agency reports:'''
* NSF - ''Carrie Black, Mike Wiltberger''
* NOAA - ''Howard Singer''
* NASA - ''Jim Spann''
* Air Force - ''James McCollough''
* LPAG - ''Matina Gkioulidou et al.''

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Jay Albert and Wen Li''

'''1. Sasha Ukhorskiy (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Dropouts

'''2. Seth Claudepierre''': Empirical estimates of electron lifetimes in the radiation belts

'''3. Zheng Xiang''': A statistical survey of radiation belt dropouts observed by Van Allen Probes

'''4. Joe Borovsky''': MeV-Electron Dropouts without MeV-Proton Dropouts

'''5. Luisa Capannolo''': Understanding the driver of energetic electron precipitation using coordinated multi-satellite measurements (24 September 2013 Challenge Event)

'''6. Mark Engebretson''': EMIC wave events during the four GEM QARBM challenge intervals

'''7. Armando Maldonado''': On the diffusion rates of electron bounce resonant scattering by magnetosonic waves

'''8. Oleksiy Agapitov''': Chorus-microburst relations and the corresponding scaling

'''9. Alexander Drozdov''': Modeling of a non-storm dropout event

'''10. (walk-in) Robyn Millan''': Newly selected REAL CubeSat Mission

'''11. (walk-in) Poorya Hosseini''': Whistler wave-particle interaction in the Earth's radiation belts

==== Ground Magnetometer Array Group ====

=== 1330-1500: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== SPEDAS Demo and Tutorial (General/New Users) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] Modeling Methods and Validation: Conductance Challenge Session ====

- Geoff Crowley 
- Slides from Steve Kaeppler 
- Slides from Ryan McGranaghan 
- George Khazanov 
- Margaret Chen 
- Agnit Mukhopadhyay 

The goal for this session is to discuss data/model results from the specific challenge days, as well as data/model parameters, uncertainties, assumptions, and boundary conditions, with an eye toward making comparisons for these events (including model-model, data-data, and model-data comparisons).

After the speakers, we’ll determine whether there is anyone else who we need to get involved in the challenge events and identify next steps for making comparisons and moving the challenge forward.

'''Challenge events:''' 
#1 2016 Oct 13-15 
#2 2013 March 17 
'''Bonus storms (selected by the CCMC Space Weather Capabilities Auroral Assessment team):''' 
#3 2015 Jun 21-24 
#4 2012 March 9 

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Steve Morley and Jay Albert''

'''1. Steve Morley''': Summary of RB Enhancement and Dropout Challenges

'''2. Lauren Blum''': Newly selected CubeSat mission at GTO orbit

'''3. Xinlin Li''': Newly selected CubeSat: Inner Radiation Belt Experiment (CIRBE)

'''4. James McCollough''': Update on DSX Mission

'''5. Panel Discussions''': Remaining Open Questions and Future Directions of Radiation Belt Studies

'''Panelists: Jacob Bortnik, Allison Jaynes, Wen Li, Geoff Reeves, and Drew Turner'''

=== 1800-2100: Posters ===

== Friday, June 22 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Student poster awards & Jacob poll results''' (30 min)

* '''MIC panel''': ''Shin Ohtani'' (moderator), ''Brian Anderson, Bill Bristow, Bob Lysak, Peter Chi, Bill Lotko'' (1 hour)

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

=== 1330-1500: Splinter Sessions ===

==== [Joint] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) + Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

==== SPEDAS Demo and Tutorial (Analyzing MMS data with SPEDAS) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) ====

== Saturday, June 23 ==

'''GEM-CEDAR Joint Workshop'''

=== 0830-1000: Multiscale aspects of the energy budget ===

=== 1030-1200: Interhemispheric processes, hemispheric symmetries & asymmetries ===

=== 1330-1500: What is needed to make progress? ===

=== 1530-1700: Data science in Geospace ===

2018 GEM Workshop and GEM-CEDAR Joint Workshop

2018-06-16T18:32:58Z

Kylemurphy: /* [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms */

'''Detailed Schedule'''

Below is a detailed session schedule with names of tentative speakers provided by Focus Group Leaders and Research Area Coordinators. The information here serves as a rough guide for those who wish to know the most updated session plans. Due to the dynamic nature of the Workshop, Focus Groups may continue to revise their agenda as needed.

All other information about the 2018 GEM Summer Workshop can be found at the [http://www.cpe.vt.edu/gem/index.html GEM Workshop Coordinator site].

== Monday, June 18 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Opening and welcome''': ''Jacob Bortnik'' (15 min)

* '''SWMI panel''': ''Katariina Nykyri'' (moderator), ''Bob McPherron, Vassilis Angelopoulos, Toshi Nishimura, Jay Johnson, Heli Hietala'' (45 min)

* '''Mission talks''': RBSP - ''Sasha Ukhorskiy''; THEMIS - ''Vassilis Angelopoulos''; MMS - ''Li-Jen Chen/Rick Wilder''; NSF Ground-based - ''Mark Engebretson/Eftyhia Zesta'' (30 min)

=== 1030-1200: Splinter Sessions ===

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [Joint] ULF wave Modeling, Effects, and Applications + Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====
'''ULF waves during particle injections and dipolarizations'''
This session focuses on the relationship between particle injections/dipolarizations and Pc4-5/Pi2/EMIC waves - e.g., Why are waves driven in only some events? Do waves impact the ring current/radiation belts?

*1. Discussion of Session Topic

*2. Bob Lysak -- Ionospheric Conductivity Effects on Pi2 Pulsations

*3. Mike Hartinger -- Pi2 waves during an extended period with stable plasmapause location and variable geomagnetic activity

*4. Toshi Nishimura -- Ionosphere observations of Pc5 ULF waves during 2018 HGSO conjunctions

*5. Xueling Shi -- Long-lasting poloidal ULF waves observed by multiple satellite and SuperDARN HF radars

*6. Jian Yang -- New RCM-I simulation results for buoyancy waves

*7. Dick Wolf -- Theory of Buoyancy Waves

*8. Yan Song -- What Causes the Substorm Expansion Phase and Associated ULF Waves?

=== 1330-1500: Splinter Sessions ===

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

* 1. Introduction to Event Studies
* 2. Christine Gabrielse
* 3. Toshi Nishimura
* 4. Drew Turner
* 5. Amy Keese
* 6. Lauren Blum
* 7. Colin Komar

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''Recent advances in ULF wave research'''

*1. Overview of focus group goals and recent progress

*2. Brief ULF wave poster overviews (Tuesday posters)

*3. Kazue Takahashi -- Observation of nightside ULF waves by RBSP and Arase

*4. Tom Elsden -- Broadband Excitation of 3D Alfven Resonances (FLRs) in an MHD Waveguide

*5. Boyi Wang -- 2-D structure of foreshock driven Pc5 ULF waves observed by the THEMIS satellites and South Pole imager

*6. Xiaochen Shen -- Foreshock transient-driven ultra-low frequency (ULF) waves with dawn-dusk asymmetry of wave power

*7. Chih-Ping Wang -- ULF waves possibly driven by tailward propagation of foreshock perturbations

*8. Allison Jaynes -- Fast diffusion of ultra-relativistic electrons in the outer radiation belt: 17 March 2015 storm event

*9. Rualdo Soto -- The Drift-Mirror instability in Earth's inner magnetosphere

*10. Martin Archer/Mike Hartinger -- Results from Sonification and Citizen Science of Magnetospheric ULF waves

=== 1530-1700: Splinter Sessions ===

==== [FG] ULF wave Modeling, Effects, and Applications ====
'''EMIC wave generation, propagation, and interactions''': Discussion leaders Alexander Drozdov and Maria Usanova

The generation mechanisms of EMIC waves, their effects on trapped particles, and their propagation through the M-I system are challenging topics that involve multiple GEM research areas. Despite several years of observations and improved global wave statistics, there are many unresolved questions that limit further investigation, modeling and prediction of processes in the inner magnetosphere involving EMIC waves. This session includes presentations and discussion that unites recent findings in different areas of EMIC wave research and identifies observations/models most needed to address unresolved questions.

*1. Dedong Wang -- EMIC wave observations from Van Allen Probes and MMS

*2. Mark Engebretson -- MMS, Van Allen Probes, and ground based magnetometer observations of EMIC waves associated with a modest interplanetary shock

*3. Maria Usanova -- MMS Observations of Harmonic Electromagnetic Cyclotron Waves

*4. Naritoshi Kitamura -- Direct measurements of energy transfer from hot H+ to EMIC waves by MMS

*5. Bruce Fritz -- ELF Whistler Dependence on a Sunlit Ionosphere

*6. Chae-Woo Jun -- EMIC waves associated with/without the injection inside/outside the plasmapause

*7. Hyomin Kim -- Injection-associated EMIC waves

*8. Sebastian Cervantes -- EMIC wave parameterization in radiation belt reanalysis

*9. Maria Usanova -- Long-term correlation of EMIC wave activity and radiation belt flux variations

*10. Alexander Drozdov -- The effects due to the EMIC waves in the VERB code modeling

==== [Joint] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

=== 1730-1830: Plenary Session ===

== Tuesday, June 19 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''MPS tutorial''': ''Slava Merkin''

* '''GSM tutorial''': ''Li-Jen Chen''

=== 1030-1200: Splinter Sessions ===

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
Inner magnetosphere-ionosphere coupling
*Harneet Sangha: The Field-Aligned Current Structure Associated with Sub-Auroral Polarization Streams
*Bea Gallardo-Lacourt: STEVE: An optical structure in the subauroral region. Location and geomagnetic conditions during its formation
*Yiqun Yu: Self-consistent modeling of magnetosphereic precipitation and response in the ionosphere
*Nithin Sivadas: Energetic precipitation during substorms: simultaneously measured in the magnetosphere and ionosphere
*Xiangning Chu: Unexpected storm-time plasmaspheric density increase at low L shells on the nightside

=== 1330-1500: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
particle and wave dynamics
*Yue Chao：Oxygen ion behavior in Earth’s ring current dynamics based on Van Allen Probes observations
*Mykhaylo Shumko: Evidence of Microbursts Observed Near the Equatorial Plane in the Outer Van Allen Radiation Belt
*Run Shi: Properties of whistler mode waves in plasmasphere and plasmaspheric plume
*Qianli Ma: Ion Heating by Electromagnetic Ion Cyclotron Waves in the Inner Magnetosphere’
*Sam Bingham: The development of source electrons and chorus wave activity during CME and CIR storms
*Poorya Hosseini: TBD

==== [FG] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Christine Gabrielse, Drew Turner, David Malaspina, Matina Gkioulidou, Slava Merkin

We will have a panel discussion on the questions below with an aim to communicate different types of models' capabilities to answer different science questions, as well as a discussion on how we can move forward towards improved, data-informed models. We invite the audience to participate in the discussion and to provide input as to how we, as a field, can move forward to better understand how dipolarizations affect the inner magnetosphere, and/or how they are affected by the coupled magnetosphere-ionosphere system.

'''Panelists''' 
Misha Sitnov 
San Lu 
Jimmy Raeder 
Yann Kempf 
Colby Lemon 
Katie Garcia-Sage 

'''Panel Questions'''

1) Given our current modeling capabilities, discuss which kinds of models are best at capturing which aspects of dipolarization events and their effects in the magnetosphere.

2) What determines the dipolarization scale size in different models? (e.g., physical description, boundary conditions, model input parameters, ionosphere conditions, etc.?)

3) The transition region is where both inertia and energy dependent drifts are important. No existing models treat that region correctly.
(a) How do we move forward?

(b) Or, more specifically, address the question of dipolarization front deceleration:
(i) How do various models treat dipolarization deceleration as they approach the inner magnetosphere?
(ii) What processes are decelerating the fronts in the models?
(iii) What inner magnetosphere processes are missing (e.g. plasmasphere, complex ionospheric conductivity models) and does excluding these processes lead to different deceleration predictions?

(c) And/or address:
(i) What are the relative roles of ExB, energy-dependent drifts and particle trapping in transport and energization in the transition region?
(ii) To what extent are these processes adiabatic for particles of different energies?
(iii) What is their overall contribution to the ring current build up?

Although the questions are focusing on dipolarization implementation into the current magnetospheric models, participation of data analysts is highly desired and encouraged in order to establish an observational framework for the models.

=== 1530-1700: Splinter Sessions ===

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====
*Report on the spacecraft charging challenge
*We will have a panel discussion on remaining scientific questions in the coupled inner magnetosphere system and on future plans regarding how we will continue and move forward to better understand the cross-energy/population coupling processes and interactions with tail and ionosphere. We also cordially invite the audience to participate and contribute.

*Panelist: Mike Liemohn, Vania Jordanova, George Khazanov, Yihua Zheng

==== [Joint] Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction + Modeling Methods and Validation ====

==== [FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere ====
'''Location: Zia Ballroom''' 
'''Chairs:''' Drew Turner, Christine Gabrielse, David Malaspina, Slava Merkin, Matina Gkioulidou

This is an informal, workshop-style session that we opened up to contributed slides in order to provide the community a mouthpiece to focus on any brand new results, outstanding challenges, and/or outstanding questions concerning the research.

Although we provide the list of speakers, we point out that some of them may present during our panel-led discussion at 1:30.

'''Speakers ------------------- Topics (~5 min)''' 
1. Chih-Ping Wang ------- RCM results of bubbles 
2. Jiang Liu ----------------- R1/R2 currents as a collective result of very intense and localized FACs in the tail 
3. Brian Swiger ----------- ~keV electron enhancements in the tail from THEMIS, correlation to AE 
4. Andrei Runov (?) ------ Comparing injections at THEMIS with LANL 
5. Sasha Ukhorskiy ------- Ion acceleration and transport from the tail to the inner magnetosphere, the effects of trapping, adiabaticity, and the role of charge 
6. Anton Artemyev -------- Particle energization: adiabatic vs. nonadiabatic 
7. Xiangnig Chu ----------- Broadband waves on the dipolarization front in the inner magnetosphere 
8. Shin Ohtani ------------- Statistical study of two-point measurements of dipolarization and the result shows earthward propagation 
9. Ryan Dewey ------------ Dipolarization effects at Mercury and comparisons to Earth 

=== 1800-2100: Posters ===

== Wednesday, June 20 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''IMAG tutorial''': ''Harlan Spence''

* '''Student invited tutorial''': ''David Sibeck''

=== 1030-1200: Splinter Sessions ===

==== [Joint] ULF wave Modeling, Effects, and Applications + Modeling Methods and Validation ====
'''ULF wave modeling challenge'''

Overview of the ULF wave modeling challenge, including discussion of the ULF wave challenge event on 27-28 May 2017 (http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_ULF_Wave_Modeling%2C_Effects%2C_and_Applications) and coordinated analysis aimed at identifying additional science targets for the modeling challenge.

*1. Brief ULF wave poster overviews (Thursday posters)

*2. Mike Hartinger: ULF wave modeling challenge event overview, discussion of challenge targets (continuing during session)

*3. Mariko Teramoto: ARASE ULF wave observations during challenge event

*4. Sam Califf: GOES-14 and 16 observations during the ULF wave challenge event, Data Discussion

*5. Toshi Nishimura: PFISR measurements of the 27-28 May 2017 ULF waves

*6. Dogacan Su Ozturk: The modeling study of the 27 March 2017 Event

*7. Xiaochen Shen: GEM Challenge Event: ULF wave-related electron and proton precipitation/negative dynamic pressure pulse driven EMIC wave

*8. Others discuss when their figures/summary plots in event overview pdf are presented…

==== [FG] Magnetic Reconnection in the Age of the Heliophysics System Observatory ====

==== [FG] Geospace Systems Science ====

“Progress in Systems Science”. This session will be comprised of short oral presentations highlighting this year’s progress. Speakers will include

1. Brian Walsh
Topic: on solar wind propagation and uncertainties
2. Misha Sitnov
Topic: on data-mining efforts in empirical reconstruction of substorms
3. Alexander Lipatov
“Effects of transmitted interplanetary impulse interaction with plasmaspheric plume. First results from 3-D hybrid kinetic modeling”
4. Shin Ohtani
TBA
5. Lynn Kistler
Topic: the sawtooth project
6. Katariina Nykyri
TBA
7. Joe Borovsky
“A Composite Index of Magnetospheric Activity”

=== 1330-1500: Splinter Sessions ===

==== [FG] Modeling Methods and Validation ====
This session will include talks on general validation topics, followed by a discussion of validation at GEM.

- Mike Liemohn: ILWS-CCMC “metrics for modeling geomagnetic indices” 
- Adam Kellerman: "Application Usability Levels: A framework for objectively measuring a projects progress towards specific applications.” 
and: "Verification of the UCLA real-time data assimilative VERB code over the 2016-2018 period of operation." 
- Lutz Rastaetter: New visualizations and metrics 
- Misha Sitnov: “Global MHD validation of substorms and implications for kinetic simulations” 
- Nathaniel Frissell: "Modeling Amateur Radio Soundings of the Ionospheric Response to the 2017 Great American Eclipse" 
- MM&V Co-chairs (presented by Katherine Garcia-Sage): GEM Validation - Issues and Ideas 

Following the speakers, we will have a discussion on ideas and issues for organizing validation at GEM.

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''1.''' '''Robert Allen''': Cassini observations of the distant magnetotail and sheath

'''2.''' '''Lin Yu et al. (presented by Jay Johnson)''': Global hybrid simulation and THEMIS and DMSP observations

'''3.''' '''Joachim Birn''': Current diversion and energy flow and conversion associated with the substorm current wedge

'''4.''' '''Jiang Liu''': Field-aligned currents from Swarm

'''5.''' '''Xiaochen Shen''': Kelvin-Helmholtz waves in mid-tail

'''6.''' '''San Lu''': PIC simulation result on the magnetotail dawn-dusk asymmetry

'''7.''' '''Anton Artemyev''': 3D picture of thin current sheet formation

'''8.''' '''Andrei Runov''': Current sheet structure at lunar distances

'''9.''' '''Chih-Ping Wang''': Update on mid-tail dynamics observed by ARTEMIS

==== [FG] Geospace Systems Science ====

“Geospace Systems Science: Looking Ahead”. This is the final (5th-year) session of the GSS Focus Group. This session will be an audience discussion to assess the systems-science approach to understanding geospace and to consider new ideas for the future.

=== 1530-1700: Splinter Sessions ===

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''Modeling challenge:''' We will discuss candidate events for next modeling challenge

'''Candidate events:'''

'''1. Magnetotail length during N IMF:''' 2010-10-22, Two ARTEMIS tail conjunction

'''2. Impact of small solar wind dynamic pressure on the magnetotail:''' 2017-09-06, Geotail-ARTEMIS midnight conjunction

'''3. Magnetotail response to transition from N IMF to S IMF: 2017-07-09:''' GOES-Geotail-MMS-ARTEMIS midnight conjunction

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Weichao Tu and Steve Morley''

'''1. Mary Hudson (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Enhancements

'''2. Alex Boyd''': What Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era

'''3. Hong Zhao''': Effects of Solar Wind and Magnetospheric Processes on the Ultra-Relativistic Electron Acceleration in the Outer Radiation Belt

'''4. Adam Kellerman''': Quantitative analysis of the radiation-belt electron phase-space-density response to stream-interaction regions utilizing the data-assimilative VERB code

'''5. Zhao Li''': Relativistic electron advection during CME-shock driven storms

'''6. Leng Ying Khoo''': On the Initial Enhancements of Energetic Electrons and the Innermost Plasmapause Locations During Storm Periods

'''7. Dedong Wang''': VERB Simulation for GEM Challenge Events

'''8. Ivan Vasko''': Electrostatic Steepening of Whistler Waves

'''9. Anton Artemyev''': Electron nonlinear resonant interaction with short and intense parallel chorus wave-packets

'''10. (walk-in) Scot Elkington''': Test Particle/SDE Simulations of a Stormtime Enhancement Event

'''11. (walk-in) Xiaojia Zhang''': Properties of intense field-aligned lower-band chorus waves: implications for nonlinear wave-particle interactions

==== [Joint] Magnetic Reconnection in the Age of the Heliophysics System Observatory + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

== Thursday, June 21 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

'''Agency reports:'''
* NSF - ''Carrie Black, Mike Wiltberger''
* NOAA - ''Howard Singer''
* NASA - ''Jim Spann''
* Air Force - ''James McCollough''
* LPAG - ''Matina Gkioulidou et al.''

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Jay Albert and Wen Li''

'''1. Sasha Ukhorskiy (scene-setting talk, 15min)''': Recent Advances and Open Questions in RB Dropouts

'''2. Seth Claudepierre''': Empirical estimates of electron lifetimes in the radiation belts

'''3. Zheng Xiang''': A statistical survey of radiation belt dropouts observed by Van Allen Probes

'''4. Joe Borovsky''': MeV-Electron Dropouts without MeV-Proton Dropouts

'''5. Luisa Capannolo''': Understanding the driver of energetic electron precipitation using coordinated multi-satellite measurements (24 September 2013 Challenge Event)

'''6. Mark Engebretson''': EMIC wave events during the four GEM QARBM challenge intervals

'''7. Armando Maldonado''': On the diffusion rates of electron bounce resonant scattering by magnetosonic waves

'''8. Oleksiy Agapitov''': Chorus-microburst relations and the corresponding scaling

'''9. Alexander Drozdov''': Modeling of a non-storm dropout event

'''10. (walk-in) Robyn Millan''': Newly selected REAL CubeSat Mission

'''11. (walk-in) Poorya Hosseini''': Whistler wave-particle interaction in the Earth's radiation belts

==== Ground Magnetometer Array Group ====

=== 1330-1500: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== SPEDAS Demo and Tutorial (General/New Users) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] Modeling Methods and Validation: Conductance Challenge Session ====

- Geoff Crowley 
- Slides from Steve Kaeppler 
- Slides from Ryan McGranaghan 
- George Khazanov 
- Margaret Chen 
- Agnit Mukhopadhyay 

The goal for this session is to discuss data/model results from the specific challenge days, as well as data/model parameters, uncertainties, assumptions, and boundary conditions, with an eye toward making comparisons for these events (including model-model, data-data, and model-data comparisons).

After the speakers, we’ll determine whether there is anyone else who we need to get involved in the challenge events and identify next steps for making comparisons and moving the challenge forward.

'''Challenge events:''' 
#1 2016 Oct 13-15 
#2 2013 March 17 
'''Bonus storms (selected by the CCMC Space Weather Capabilities Auroral Assessment team):''' 
#3 2015 Jun 21-24 
#4 2012 March 9 

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====
'''Chairs:''' ''Steve Morley and Jay Albert''

'''1. Steve Morley''': Summary of RB Enhancement and Dropout Challenges

'''2. Lauren Blum''': Newly selected CubeSat mission at GTO orbit

'''3. Xinlin Li''': Newly selected CubeSat: Inner Radiation Belt Experiment (CIRBE)

'''4. James McCollough''': Update on DSX Mission

'''5. Panel Discussions''': Remaining Open Questions and Future Directions of Radiation Belt Studies

'''Panelists: Jacob Bortnik, Allison Jaynes, Wen Li, Geoff Reeves, and Drew Turner'''

=== 1800-2100: Posters ===

== Friday, June 22 ==

=== 0830-1000: Plenary Session ===

Location: Eldorado B

* '''Student poster awards & Jacob poll results''' (30 min)

* '''MIC panel''': ''Shin Ohtani'' (moderator), ''Brian Anderson, Bill Bristow, Bob Lysak, Peter Chi, Bill Lotko'' (1 hour)

=== 1030-1200: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere (M3I2) and Its Effects ====

==== [FG] Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

=== 1330-1500: Splinter Sessions ===

==== [Joint] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) + Interhemispheric Approaches to Understand M-I Coupling (IHMIC) ====

==== SPEDAS Demo and Tutorial (Analyzing MMS data with SPEDAS) ====

=== 1530-1700: Splinter Sessions ===

==== [FG] 3D Ionospheric Electrodynamics and Its Impact on the Magnetosphere-Ionosphere-Thermosphere Coupled System (IEMIT) ====

== Saturday, June 23 ==

'''GEM-CEDAR Joint Workshop'''

=== 0830-1000: Multiscale aspects of the energy budget ===

=== 1030-1200: Interhemispheric processes, hemispheric symmetries & asymmetries ===

=== 1330-1500: What is needed to make progress? ===

=== 1530-1700: Data science in Geospace ===

FG: Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms

2018-03-28T19:10:27Z

Kylemurphy: /* 2018 Workshop Tentative Agenda */

== 2018 Workshop ==
[http://gem.epss.ucla.edu/mediawikiwiki/images/5/59/GEM_2018_DipolarizationSubstorm_ChallengeEvents.pdf Challenge Events]: Overview of the challenge events for the joint “Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere” and “Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms” sessions.

== 2017 Workshop Tentative Agenda ==

http://gem.epss.ucla.edu/mediawikiwiki/index.php/2017_GEM_Workshop

== Focus Group Leaders ==

* '''Kyle Murphy''' (NASA GSFC)
* '''Toshi Nishimura''' (UCLA)
* '''Emma Spanswick''' (University of Calgary)
* '''Jian Yang''' (Rice University)

== Term ==
* 2015-2019 (5 years)

== Research Area ==
* Magnetotail and Plasma Sheet (MPS)

== Abstract ==

For decades the debate on substorms had centered on the ‘outside-in’ (reconnection) and ‘inside-out’ (current disruption) scenarios. However, recent ground-based observations have suggested a hybrid model, wherein the substorm is initiated by flows that may originate from the dayside, cross the polar cap, move through the open/closed boundary where they trigger localized reconnection, and then trigger substorm expansion after reaching the near-Earth transition region. This is radically different from the previous and intensely debated proposals. However, there are important disagreements in the community regarding both the interpretation of the ground-based (ASI, redline, and radar) observations and the proposed picture. Furthermore, the complete idea now includes the new proposal that flow structures from within the polar cap trigger localized tail reconnection, an idea which is of major importance for full understanding of tail reconnection, but which has not received much attention in the past. It is the purpose of this proposed focus group to bring together key players in this area to work together on the new questions of the auroral and magnetotail sequence leading to substorm onset, in a CDAW/GEM style format. Though our central focus is on substorms, we will also compare to non-substorm time phenomena because some key features are common in different levels of magnetic activity. Due to the structure of GEM as a working group style meeting, and the potential impact of this new paradigm on understanding the Geospace environment, GEM is the ideal venue through which to rigorously evaluate the newly proposed paradigms. Due to the importance of ground-based observations for the proposed topics, this focus group will encourage collaboration between GEM and CEDAR.

== Topics ==

* ''' Can we rigorously evaluate substorm precursor occurrence and association? '''
* ''' What are similarities and differences of PBIs/streamers/plasma sheet flows during isolated substorms, active‐time substorms and non‐substorm times? '''
* ''' What can auroral observation tell us about the sources, timing and properties of magnetospheric flows? '''
* ''' How does the asymmetric and bursty nature of plasma sheet transport and plasma sheet wave instability influence substorm onset and other types of auroral brightening? '''
* ''' How do plasma sheet fast flows/streamers couple to lobe/polar cap phenomena? '''

== Timeliness ==

It has now been five years since the initial work of Nishimura et al. [2010] and Lyons et al. [2010], and the group has now expanded their work with numerous follow-on studies. There is therefore sufficient evidence that something of interest is occurring; yet a significant number of studies that questions their finding exist, and there is yet to be a consensus on interpretation of the data. There is intense scientific interest in the community on this topic, and the discussions have reached a critical stage. In addition to a large amount of existing satellite and ground-based data, this focus group will provide a stage to discuss initial results from new data, including those from a new campaign of THEMIS-MMS-ground coordination in year 2015-2017, and new redline (6300 Å) data from highly sensitive cameras. A focus group on this topic couldn't be more timely or appropriate for GEM.

== Relation to existing focus groups ==
Currently there exists no FG where the type of activity described here could occur. This FG will work with the “Scientific Magnetic Mapping & Techniques” FG, as well as the “Tail-inner magnetosphere interactions” FG, from the standpoint of ‘bubbles’, and "Magnetic Reconnection in the Magnetosphere" FG. Additionally, once the observable features are better quantified, the results could be fed into the “Geospace Systems Science" FG for better integration with the global models and systems-science methodologies that are the focus of that group.

== Goals and deliverables ==
The primary goal of the focus group is to determine if, when, and under what conditions, localized flux tubes convecting across the polar cap lead to depleted entropy flow bursts within the plasmasheet that can trigger the reconfiguration of the nightside magnetosphere that is known as a substorm. The result of the FG will be a rigorous community assessment of the role of pre-onset polar cap flows and auroral zone streamers (as proxies for magnetospheric flows) on magnetospheric reconfiguration, as well as on localized tail reconnection. In addition to a series of published research papers, the results will be communicated directly to the GGCM modelers, as these new observations provide new constraints and metrics that the models will have to match.

* Community-wide consensus of substorm precursors
* Consensus on connection between the lobe (polar cap) and plasma sheet (oval) and its influence on reconnection and substorm
* Developing tools to quantify key auroral features (such as streamers)
* Model validations by characterizing location, size, motion and timing of precursors
* A series of publications on these outcomes

== Expected Activities ==
This will primarily be an intensive data analysis focus group, with immersive discussions and very few presentations. We will invite a small number of speakers (both from GEM and CEDAR) to present their results on selected events, and ask several experienced community members to join as panelists for facilitating discussions with audience. We will also encourage modelers to present simulation results for assisting interpretation of observations and for obtaining physical pictures. One goal is to return to the original GEM model of active data analysis, and we may try a ‘two-screen’ approach to improve interactions and discussions.

A primary objective of the proposed focus group is to reach consensus on the significance of and how to interpret auroral streamers and polar patches, and their associated flow structures, in the context of substorm development. For the first two years we anticipate a few short presentations to provide the framework, then the team will work on identifying a subset of events to analyze in detail (this will also occur well before each summer workshop) – starting first with isolated substorms, then moving onto intensifications embedded in strong activity. In later years, similarities and differences of substorm-time and nonsubstorm-time sequences will be discussed.

FG: Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms

2018-03-28T19:09:55Z

Kylemurphy: /* 2018 Workshop Tentative Agenda */

== 2018 Workshop Tentative Agenda ==
[http://gem.epss.ucla.edu/mediawikiwiki/images/5/59/GEM_2018_DipolarizationSubstorm_ChallengeEvents.pdf Challenge Events]: Overview of the challenge events for the joint “Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere” and “Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms” sessions.

== 2017 Workshop Tentative Agenda ==

http://gem.epss.ucla.edu/mediawikiwiki/index.php/2017_GEM_Workshop

== Focus Group Leaders ==

* '''Kyle Murphy''' (NASA GSFC)
* '''Toshi Nishimura''' (UCLA)
* '''Emma Spanswick''' (University of Calgary)
* '''Jian Yang''' (Rice University)

== Term ==
* 2015-2019 (5 years)

== Research Area ==
* Magnetotail and Plasma Sheet (MPS)

== Abstract ==

For decades the debate on substorms had centered on the ‘outside-in’ (reconnection) and ‘inside-out’ (current disruption) scenarios. However, recent ground-based observations have suggested a hybrid model, wherein the substorm is initiated by flows that may originate from the dayside, cross the polar cap, move through the open/closed boundary where they trigger localized reconnection, and then trigger substorm expansion after reaching the near-Earth transition region. This is radically different from the previous and intensely debated proposals. However, there are important disagreements in the community regarding both the interpretation of the ground-based (ASI, redline, and radar) observations and the proposed picture. Furthermore, the complete idea now includes the new proposal that flow structures from within the polar cap trigger localized tail reconnection, an idea which is of major importance for full understanding of tail reconnection, but which has not received much attention in the past. It is the purpose of this proposed focus group to bring together key players in this area to work together on the new questions of the auroral and magnetotail sequence leading to substorm onset, in a CDAW/GEM style format. Though our central focus is on substorms, we will also compare to non-substorm time phenomena because some key features are common in different levels of magnetic activity. Due to the structure of GEM as a working group style meeting, and the potential impact of this new paradigm on understanding the Geospace environment, GEM is the ideal venue through which to rigorously evaluate the newly proposed paradigms. Due to the importance of ground-based observations for the proposed topics, this focus group will encourage collaboration between GEM and CEDAR.

== Topics ==

* ''' Can we rigorously evaluate substorm precursor occurrence and association? '''
* ''' What are similarities and differences of PBIs/streamers/plasma sheet flows during isolated substorms, active‐time substorms and non‐substorm times? '''
* ''' What can auroral observation tell us about the sources, timing and properties of magnetospheric flows? '''
* ''' How does the asymmetric and bursty nature of plasma sheet transport and plasma sheet wave instability influence substorm onset and other types of auroral brightening? '''
* ''' How do plasma sheet fast flows/streamers couple to lobe/polar cap phenomena? '''

== Timeliness ==

It has now been five years since the initial work of Nishimura et al. [2010] and Lyons et al. [2010], and the group has now expanded their work with numerous follow-on studies. There is therefore sufficient evidence that something of interest is occurring; yet a significant number of studies that questions their finding exist, and there is yet to be a consensus on interpretation of the data. There is intense scientific interest in the community on this topic, and the discussions have reached a critical stage. In addition to a large amount of existing satellite and ground-based data, this focus group will provide a stage to discuss initial results from new data, including those from a new campaign of THEMIS-MMS-ground coordination in year 2015-2017, and new redline (6300 Å) data from highly sensitive cameras. A focus group on this topic couldn't be more timely or appropriate for GEM.

== Relation to existing focus groups ==
Currently there exists no FG where the type of activity described here could occur. This FG will work with the “Scientific Magnetic Mapping & Techniques” FG, as well as the “Tail-inner magnetosphere interactions” FG, from the standpoint of ‘bubbles’, and "Magnetic Reconnection in the Magnetosphere" FG. Additionally, once the observable features are better quantified, the results could be fed into the “Geospace Systems Science" FG for better integration with the global models and systems-science methodologies that are the focus of that group.

== Goals and deliverables ==
The primary goal of the focus group is to determine if, when, and under what conditions, localized flux tubes convecting across the polar cap lead to depleted entropy flow bursts within the plasmasheet that can trigger the reconfiguration of the nightside magnetosphere that is known as a substorm. The result of the FG will be a rigorous community assessment of the role of pre-onset polar cap flows and auroral zone streamers (as proxies for magnetospheric flows) on magnetospheric reconfiguration, as well as on localized tail reconnection. In addition to a series of published research papers, the results will be communicated directly to the GGCM modelers, as these new observations provide new constraints and metrics that the models will have to match.

* Community-wide consensus of substorm precursors
* Consensus on connection between the lobe (polar cap) and plasma sheet (oval) and its influence on reconnection and substorm
* Developing tools to quantify key auroral features (such as streamers)
* Model validations by characterizing location, size, motion and timing of precursors
* A series of publications on these outcomes

== Expected Activities ==
This will primarily be an intensive data analysis focus group, with immersive discussions and very few presentations. We will invite a small number of speakers (both from GEM and CEDAR) to present their results on selected events, and ask several experienced community members to join as panelists for facilitating discussions with audience. We will also encourage modelers to present simulation results for assisting interpretation of observations and for obtaining physical pictures. One goal is to return to the original GEM model of active data analysis, and we may try a ‘two-screen’ approach to improve interactions and discussions.

A primary objective of the proposed focus group is to reach consensus on the significance of and how to interpret auroral streamers and polar patches, and their associated flow structures, in the context of substorm development. For the first two years we anticipate a few short presentations to provide the framework, then the team will work on identifying a subset of events to analyze in detail (this will also occur well before each summer workshop) – starting first with isolated substorms, then moving onto intensifications embedded in strong activity. In later years, similarities and differences of substorm-time and nonsubstorm-time sequences will be discussed.

File:GEM 2018 DipolarizationSubstorm ChallengeEvents.pdf

2018-03-28T19:07:30Z

Kylemurphy: Challenge events for the joint "Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere” and “Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms" sessions.

Challenge events for the joint "Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere” and “Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms" sessions.

FG: Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms

2018-03-28T19:01:23Z

Kylemurphy:

== 2018 Workshop Tentative Agenda ==

== 2017 Workshop Tentative Agenda ==

http://gem.epss.ucla.edu/mediawikiwiki/index.php/2017_GEM_Workshop

== Focus Group Leaders ==

* '''Kyle Murphy''' (NASA GSFC)
* '''Toshi Nishimura''' (UCLA)
* '''Emma Spanswick''' (University of Calgary)
* '''Jian Yang''' (Rice University)

== Term ==
* 2015-2019 (5 years)

== Research Area ==
* Magnetotail and Plasma Sheet (MPS)

== Abstract ==

For decades the debate on substorms had centered on the ‘outside-in’ (reconnection) and ‘inside-out’ (current disruption) scenarios. However, recent ground-based observations have suggested a hybrid model, wherein the substorm is initiated by flows that may originate from the dayside, cross the polar cap, move through the open/closed boundary where they trigger localized reconnection, and then trigger substorm expansion after reaching the near-Earth transition region. This is radically different from the previous and intensely debated proposals. However, there are important disagreements in the community regarding both the interpretation of the ground-based (ASI, redline, and radar) observations and the proposed picture. Furthermore, the complete idea now includes the new proposal that flow structures from within the polar cap trigger localized tail reconnection, an idea which is of major importance for full understanding of tail reconnection, but which has not received much attention in the past. It is the purpose of this proposed focus group to bring together key players in this area to work together on the new questions of the auroral and magnetotail sequence leading to substorm onset, in a CDAW/GEM style format. Though our central focus is on substorms, we will also compare to non-substorm time phenomena because some key features are common in different levels of magnetic activity. Due to the structure of GEM as a working group style meeting, and the potential impact of this new paradigm on understanding the Geospace environment, GEM is the ideal venue through which to rigorously evaluate the newly proposed paradigms. Due to the importance of ground-based observations for the proposed topics, this focus group will encourage collaboration between GEM and CEDAR.

== Topics ==

* ''' Can we rigorously evaluate substorm precursor occurrence and association? '''
* ''' What are similarities and differences of PBIs/streamers/plasma sheet flows during isolated substorms, active‐time substorms and non‐substorm times? '''
* ''' What can auroral observation tell us about the sources, timing and properties of magnetospheric flows? '''
* ''' How does the asymmetric and bursty nature of plasma sheet transport and plasma sheet wave instability influence substorm onset and other types of auroral brightening? '''
* ''' How do plasma sheet fast flows/streamers couple to lobe/polar cap phenomena? '''

== Timeliness ==

It has now been five years since the initial work of Nishimura et al. [2010] and Lyons et al. [2010], and the group has now expanded their work with numerous follow-on studies. There is therefore sufficient evidence that something of interest is occurring; yet a significant number of studies that questions their finding exist, and there is yet to be a consensus on interpretation of the data. There is intense scientific interest in the community on this topic, and the discussions have reached a critical stage. In addition to a large amount of existing satellite and ground-based data, this focus group will provide a stage to discuss initial results from new data, including those from a new campaign of THEMIS-MMS-ground coordination in year 2015-2017, and new redline (6300 Å) data from highly sensitive cameras. A focus group on this topic couldn't be more timely or appropriate for GEM.

== Relation to existing focus groups ==
Currently there exists no FG where the type of activity described here could occur. This FG will work with the “Scientific Magnetic Mapping & Techniques” FG, as well as the “Tail-inner magnetosphere interactions” FG, from the standpoint of ‘bubbles’, and "Magnetic Reconnection in the Magnetosphere" FG. Additionally, once the observable features are better quantified, the results could be fed into the “Geospace Systems Science" FG for better integration with the global models and systems-science methodologies that are the focus of that group.

== Goals and deliverables ==
The primary goal of the focus group is to determine if, when, and under what conditions, localized flux tubes convecting across the polar cap lead to depleted entropy flow bursts within the plasmasheet that can trigger the reconfiguration of the nightside magnetosphere that is known as a substorm. The result of the FG will be a rigorous community assessment of the role of pre-onset polar cap flows and auroral zone streamers (as proxies for magnetospheric flows) on magnetospheric reconfiguration, as well as on localized tail reconnection. In addition to a series of published research papers, the results will be communicated directly to the GGCM modelers, as these new observations provide new constraints and metrics that the models will have to match.

* Community-wide consensus of substorm precursors
* Consensus on connection between the lobe (polar cap) and plasma sheet (oval) and its influence on reconnection and substorm
* Developing tools to quantify key auroral features (such as streamers)
* Model validations by characterizing location, size, motion and timing of precursors
* A series of publications on these outcomes

== Expected Activities ==
This will primarily be an intensive data analysis focus group, with immersive discussions and very few presentations. We will invite a small number of speakers (both from GEM and CEDAR) to present their results on selected events, and ask several experienced community members to join as panelists for facilitating discussions with audience. We will also encourage modelers to present simulation results for assisting interpretation of observations and for obtaining physical pictures. One goal is to return to the original GEM model of active data analysis, and we may try a ‘two-screen’ approach to improve interactions and discussions.

A primary objective of the proposed focus group is to reach consensus on the significance of and how to interpret auroral streamers and polar patches, and their associated flow structures, in the context of substorm development. For the first two years we anticipate a few short presentations to provide the framework, then the team will work on identifying a subset of events to analyze in detail (this will also occur well before each summer workshop) – starting first with isolated substorms, then moving onto intensifications embedded in strong activity. In later years, similarities and differences of substorm-time and nonsubstorm-time sequences will be discussed.

2016 GEM-CEDAR Workshop

2016-06-14T21:15:34Z

Kylemurphy:

'''June 19-24, 2016'''

'''Santa Fe Convention Center, Santa Fe, New Mexico'''

Below is a ''fluid'' list of speakers in GEM sessions provided by the GEM Workshop Coordinator and Focus Groups. The information here serves as a rough guide for those who wish to know the most updated session plans. Due to the nature of the GEM Workshop, Focus Groups may continue to revise their agenda as needed.

All other information about the 2016 Joint GEM-CEDAR Workshop can be found at [http://www.cpe.vt.edu/gem/index.html the GEM Meeting Coordinator Website] and [https://cedarweb.vsp.ucar.edu/wiki/index.php/2016_Workshop:Main the CEDARwiki 2016 Workshop Page].

== Monday, June 20 ==

=== 0815-1000: Plenary Session ===

* '''Welcome''' by ''Josh Semeter, Mike Wiltberger, Students, and Therese Moretto Jorgensen''

* '''Tutorial GC#1''' by ''Roger Varney'' -- Geospace electrodynamics

=== 1025-1200: Plenary Session ===

* '''Tutorial GC#2''' by ''Jesper Gjerloev'' -- Multiscale MI coupling

=== 1330-1530: Splinter Sessions ===

==== [FG] Magnetic Reconnection in the Magnetosphere ====

==== [FG] (Joint) Storm-time Inner Magnetosphere-Ionosphere Convection + Inner Magnetosphere Cross-Energy/Population Interactions ====
*Topic: Impact of large-scale or transient electric fields on inner magnetosphere populations, and the role of particle precipitation of magnetospheric origin on the ionospheric electrodynamics
* Chairs: Stanislav Sazykin, Yiqun Yu
#Joe Huba : Storm-time electrodynamics of the ionosphere/plasmasphere system using SAMI3/RCM
#Richard Selesnick: Control of the inner electron radiation belt by large-scale electric fields
#Sam Califf: Van Allen Probes observations of subauroral polarization streams (SAPS) electric fields
#Scott Thaller: Van Allen Probes investing of the night/dusk asymmetries of the plasmapause and dawn-dusk electric field, a synoptic study
#Carlos Martinis: Coincident observations of all-sky images and Van Allen Probes
#Raluca Ilie: TBD
#Margaret Chen: TBD
#Yiqun Yu: A new ionospheric precipitation module coupled with RAM-SCB in geospace general circulation model

=== 1600-1800: Splinter Sessions ===

==== [FG] (Joint) Magnetic Reconnection in the Magnetosphere + Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

==== [FG] ULF wave Modeling, Effects, and Applications ====

== Tuesday, June 21 ==

=== 0815-1000: Plenary Session ===

=== 1025-1200: Plenary Session ===

=== 1330-1530: Splinter Sessions ===

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====

==== [FG] (Joint) Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures + Magnetic Reconnection in the Magnetosphere + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

== Wednesday, June 22 ==

=== 0815-1000: Plenary Session ===

* '''GEM Tutorial #1''' by ''James Smith'' -- System science tutorial

* '''GEM Tutorial #2''' by ''Marc Lessard'' -- Aurora and ionosphere/thermosphere coupling

=== 1025-1200: Plenary Session ===

* '''GEM Tutorial #3''' by ''Maria Usanova'' -- Student invited tutorial

=== 1330-1530: Splinter Sessions ===

==== [FG] (Joint) Tail Environment and Dynamics at Lunar Distances + Modeling Methods and Validation ====
Mid-Tail Modeling Challenge: A prolonged N IMF event from 13 to 14 Feb 2014

'''Chih-Ping Wang:''' Overview of the event

'''Joseph Jensen:''' OpenGGCM

'''Slava Merkin:''' LFM

'''Ilja Honkonen:''' GUMICS

'''Xueyi Wang:''' Auburn University Global Hybrid code

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====

==== [FG] (Joint) Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures + ULF wave Modeling, Effects, and Applications + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====
'''Mike Hartinger'''- Inter-hemispheric (Antarctica/Greenland magnetometers) comparisons of the response to an interplanetary shock

'''Heli Hietala'''- Impact rates of magnetosheath high speed jets (to discuss observational inputs required for magnetospheric models)

'''Boyi Wang''' - Triggering of poleward moving auroral forms by satellite-imager coordinated observations

'''Boyi Wang''' - Response of dayside aurora on closed field lines to solar wind driving

'''Desheng Han''' - Throat aurora: the ionospheric signature of cold magnetospheric plasmas interaction with the dayside magnetopause reconnection

'''Hui Zhang''' – HFA generated ULF waves in the magnetosphere

'''Alexa Halford''' - BARREL observations of the open closed boundary

Reserve time to brainstorm on how to connect the future activities of the new Dayside Kinetics and ULF Wave FGs

== Thursday, June 23 ==

=== 0815-1000: Plenary Session ===

* '''Tutorial GC#3''' by ''Phil Erickson'' -- Cold plasma effect

* '''Science Highlight GC#4''' -- MI precursor to earthquakes

* '''Science Highlight GC#5''' -- Ionospheric reconnection

* '''Science Highlight GC#6''' -- LWS TR&T

=== 1025-1200: Plenary Session ===

* '''Tutorial GC#4''' by ''Shasha Zou'' -- TBD

=== 1330-1530: Splinter Sessions ===

==== [FG] Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====
'''Substorm event presentation & discussion'''
*'''Larry Lyons'''
*'''Larry Kepko'''
*'''Tony Lui'''

'''Short contributed talks'''
*'''Dick Wolf''': Kelvin-Helmholtz instability and interchange stability in a growth-phase arc
*'''Tony Lui''': BBF-substorm connection
*'''Eric Donovan''': Evolution and mapping of substorm onset arc
*'''Shin Ohtani''': PBI-polar cap flow connection
*'''Misha Sitnov''': Distinguish between roles as triggers of the substorm instability and drivers
*'''Larry Kepko''': Statistical analysis of substorm onset and auroral streamers

==== [FG] (Joint) Modeling Methods and Validation + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====

=== 1600-1800: Splinter Sessions ===

==== [FG] Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====
(Cont'd from the 13:30-15:30 session)

'''Substorm event presentation & discussion'''
*'''Larry Lyons'''
*'''Larry Kepko'''
*'''Tony Lui'''

'''Short contributed talks'''
*'''Dick Wolf''': Kelvin-Helmholtz instability and interchange stability in a growth-phase arc
*'''Tony Lui''': BBF-substorm connection
*'''Eric Donovan''': Evolution and mapping of substorm onset arc
*'''Shin Ohtani''': PBI-polar cap flow connection
*'''Misha Sitnov''': Distinguish between roles as triggers of the substorm instability and drivers
*'''Larry Kepko''': Statistical analysis of substorm onset and auroral streamers

==== [FG] Tail Environment and Dynamics at Lunar Distances ====
'''Anton Artemyev:''' Mid-tail current sheet

'''Peter Chi:''' Waves at ion gyrofrequencies in the magnetotail: ARTEMIS observations near the Moon

'''Babor Facsko''' (E Kallio, D. Sibeck, A. Kis, V. Wesztergom, and L. Szarka): Properties of the solar wind near the Moon in the magnetotail

'''Shin Ohtain:''' Poleward boundary intensification and polar-cap flows

'''Chih-Ping Wang:''' ULF waves at mid-tail and ground magnetic field during the 2014-02-13 N IMF event

'''Simon Wing:''' DMSP observations of polar-cap boundary during the 2014-02-13 N IMF event

'''Chih-Ping Wang:''' mid-tail and near-Earth tail connection: ARTEMIS-THEMIS tail conjunctions

==== [FG] (Joint) ULF wave Modeling, Effects, and Applications + Modeling Models and Validation ====

== Friday, June 24 ==

=== 0815-1000: Plenary Session ===

* '''GEM Tutorial #4''' by ''Bob Lysak'' -- ULF wave modeling

* '''GEM Tutorial #5''' by ''Mike Hartinger'' -- ULF wave observations

=== 1025-1200: Plenary Session ===

* '''GEM Tutorial #6''' by ''Hui Zhang'' -- SWMI

=== 1330-1530: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere and Its Effects ====

==== [FG] (Joint) Quantitative Assessment of Radiation Belt Modeling + ULF wave Modeling, Effects, and Applications ====

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====

==== [FG] Tail-Inner Magnetosphere Interactions ====

Location: Sweeney D

Speakers:

1. '''Slava Merkin'''

2. '''Misha Sitnov'''

3. '''Dan Baker:''' “Van Allen Probes and MMS combined studies of substorm injections"

4. '''Christine Gabrielse'''

5. '''W. Douglas Cramer:''' “Importance of Ring Current Plasma Transport Mechanisms in the Magnetotail”

==== [FG] Magnetic Reconnection in the Magnetosphere ====

=== 1600-1800: Splinter Sessions ===

==== [FG] Merged Modeling & Measurement of Injection Ionospheric Plasma into the Magnetosphere and Its Effects ====

==== [FG] Quantitative Assessment of Radiation Belt Modeling ====

==== [FG] Inner Magnetosphere Cross-Energy/Population Interactions ====

==== [FG] Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms ====

'''Xiangning Chu and Bob McPherron:''' Association of substorm onset lists with each other and with fast flow in the plasma sheet

'''Banafhseh (Bashi) Ferdousi:''' Mapping plasma sheet flows from the magnetosphere to the ionosphere

'''Nadine Kalmoni:''' Dynamics of the onset arc

'''Eric Grono and Eric Donovan:''' Analysis of the motion of aurora in the red line (REGO) imagers

'''Bob Lysak:''' Plasma bubbles and M-I coupling

'''Kyle Murphy:''' Statistical analysis of auroral motion during the growth and expansion phase

'''Jiang Lui:''' Plasma sheet--a source of both R1 and R2 Birkeland currents

'''Toshi Nishimura:''' Similarities and differences between auroral streamers during isolated, active and non substorm times

'''Katie Sage-Garcia:''' Magnetotail modeling and plasma sheet flows

'''Jian Yang:''' RCM perspective of growth phase bubbles and streamers

==== [FG] (Joint) Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures + Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction ====
'''Terry Liu''' - Observations of a new foreshock region upstream of a foreshock bubble's shock

'''Sanni Hoilijoki''' - Magnetopause-foreshock interactions induced by dayside reconnection

'''Heli Hietala''' - Growth rate and properties of ion beam generated foreshock ULF waves - ARTEMIS observations

'''Andrey Samsonov''' - Can we predict magnetospheric expansion for radial IMF using MHD codes?

'''Hui Zhang''' - A statistical study on Hot Flow Anomaly Current Sheets