2016 GEM-CEDAR Workshop

The "Fluid" Speaker List

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 the GEM Meeting Coordinator Website and 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

This session will focus on kinetic physics in day- and night-side reconnection. With the recent launch of the Magnetospheric Multiscale (MMS) satellites, there is already a wealth of new data on kinetic scale physics. Scene setting talks to frame relevant questions and generate discussion will include particle acceleration in dayside reconnection (Allison Jaynes, CU-Boulder) and how global/non-local physics impacts kinetic reconnection physics (John Dorelli, NASA-GSFC), both of which will include discussion of MMS data. Other speakers on dayside reconnection are (in no particular order) Joo Hwang, Sun Hee Lee, Richard Denton, Jan Egedal, Rishi Mistry, Kris Maynard, and Cong Zhao. In addition, we will have a discussion of magnetotail stability, with a scene setting talk on recent progress (Slava Merkin, JHU-APL). Other speakers on magnetotail reconnection are (in no particular order) Yongliang Zhang, Stefan Kiehas, Haoming Liang, Misha Sitnov, Andrei Runov, Joachim Birn, Phil Pritchett, and Tony Lui.

[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

1. Joe Huba : Storm-time electrodynamics of the ionosphere/plasmasphere system using SAMI3/RCM
2. Richard Selesnick: Control of the inner electron radiation belt by large-scale electric fields
3. Sam Califf: Van Allen Probes observations of subauroral polarization streams (SAPS) electric fields
4. Scott Thaller: Van Allen Probes investing of the night/dusk asymmetries of the plasmapause and dawn-dusk electric field, a synoptic study
5. Carlos Martinis: Coincident observations of all-sky images and Van Allen Probes
6. Raluca Ilie: TBD
7. Margaret Chen: TBD
8. Yiqun Yu: A new ionospheric precipitation module coupled with RAM-SCB in geospace general circulation model

Tuesday, June 21

1330-1530: Splinter Sessions

[FG] Quantitative Assessment of Radiation Belt Modeling

• Topic: “Radiation Belt (RB) particles and modeling”
• Chairs: Weichao Tu and Steve Morley

1. Nikita Aseev: Understanding the dynamics of electrons at GEO
2. Hong Zhao: On the relation between radiation belt electron fluxes and solar wind parameters/geomagnetic indices
3. Xinlin Li: Radiation belt electron intensity variations: Van Allen Probes era vs. previous two solar cycles
4. Ashley Jones: Secular drift of the SAA from SAMPEX particle counts
5. Drew Turner: The source of inner zone electrons by sudden injections
6. Shri Kanekal: Near-Instantaneous energization of radiation belt electrons by IP shocks, including the March 17 2015 event
7. Dan Baker: The March and June 2015 storms and their implications for radiation belt models
8. Vania Jordanova: Modeling the seed population of the radiation belts with SHIELDS
9. Adam Kellerman: Recent development and performance of the data-assimilative VERB code
10. Lutz Rastaetter: CCMC results for challenge events
11. Suk-bin Kang: Modeling of dropout and drift loss to the magnetopause using CIMI model for GEM challenge event on June 1 2013
12. Alexander Drozdov: Response of radiation belt simulations to different radial diffusion coefficients
13. Sasha Ukhorskiy (walk-in)

[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

Sanni Hoilijoki- Dayside magnetopause reconnection using a hybrid-Vlasov simulation code Vlasiator

Sun-Hee Lee- Inverse Energy Dispersion of Energetic Ions Observed in the Magnetosheath: the Extent of the Reconnection Line

Xuanya Ma- Magnetic Reconnection with a super-fast perpendicular shear flow (simulation)

Sasha Ukhorskiy- The role of KH instability in the magnetopause losses of energetic particles: Hight-resolution MHD-test-particle simulations

Andrey Samsonov- Magnetopause positions for northward and southward IMF: comparison between empirical and MHD models.

Naritoshi Kitamura- Part1: Curret status of Geotail and use of the data. Part 2: Shift of the magnetopause reconnection line to the winter hemisphere under southward IMF conditions: Geotail and MMS observations.

Eunjin Choi- TBD.

Chih-Ping Wang- Magnetopause perturbations in the mid-tail during steady N IMF: ARTEMIS observations and global MHD simulations.

[FG] Modeling Methods and Validation (Joint with CEDAR-GEM Modeling Challenge)

Dan Welling - Ionospheric Conductance in Global MHD

Ryan McGranaghan - High-latitude conductance observations and data assimilation

Contributed talks for conductance discussion

• Slava Merkin - Ionospheric turbulence contribution to conductivity and global effects

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

• Topic: “Waves and local interactions”
• Chairs: Wen Li and Jay Albert

1. Louis Ozeke: Quantifying the ULF wave radial diffusion coefficients using global ground based magnetometer measurements for each of the GEM challenge events
2. Jean-Francois Ripoll: Reproducing the observed energy-dependent structure of Earth’s electron radiation belts during storm recovery with an event-specific diffusion model
3. Irina Zhelavskaya: Automated determination of electron density from electric field measurements on the Van Allen Probes spacecraft using neural networks
4. Xiangning Chu: Observation and neural network modeling of the refilling plasmasphere
5. Dave Hartley: Quantifying the variable sheath impedance of the Van Allen Probes EFW instrument using whistler-mode waves
6. Wen Li: New chorus wave properties near the equator from Van Allen Probes wave observations
7. Homayon Aryan: Average chorus scale size
8. Jinxing Li: Coherent Whistler Waves Simultaneously Observed in Unexpectedly Large Spatial Scale
9. Jacob Bortnik: The observed and simulated saturation characteristics of chorus waves
10. Lunjin Chen: Evaluation of electron pitch angle scattering rates based on observed EMIC waves
11. Xiaojia Zhang: The statistical distribution of EMIC wave spectra using Van Allen Probes observations
12. Xiangrong Fu: Modeling EMIC wave properties: linear theory and hybrid simulation
13. Oleksiy Agapitov

[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

Heli Hietala- Impact rates of magnetosheath high speed jets (to discuss observational inputs required for magnetospheric models)

Hui Zhang – HFA generated ULF waves in the magnetosphere

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

Alexa Halford - BARREL observations of the open closed boundary

Slava Merkin - Energetic particles losses through KHI at the magnetopause

Mike Hartinger- Inter-hemispheric (Antarctica/Greenland magnetometers) comparisons of the response to an interplanetary shock

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 -- Dynamic High-Latitude Ionospheric Convection: Drivers and Effects

1330-1530: Splinter Sessions

[FG] Testing Proposed Links between Mesoscale Auroral and Polar Cap Dynamics and Substorms

(Sweeney A)

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
• 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

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, Sweeney A)

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
• 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

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] (Joint) Quantitative Assessment of Radiation Belt Modeling + ULF wave Modeling, Effects, and Applications

• Topic: “ULF waves and nonlocal transport”
• Chairs: Jay Albert and Michael Hartinger

1. Greg Cunningham: Radial diffusion in non-dipolar background fields
2. Theodore Sarris: Quantifying outer belt electron radial diffusion based on Van Allen Probes data and test particle simulation
3. Wen Li (walk-in): The potential importance of pitch angle dependence in DLL
4. Anthony Chan: Evaluation of Drift-Shell-Splitting Effects using 3D Diffusion Modeling
5. Qianli Ma: Radial intrusion of energetic electrons in the slot region
6. Solene Lejosne: Modulations of the electric drift below L~3 due to the ionosphere dynamo
7. Yan Song: The role of ULF waves in the particle acceleration
8. Mike Hartinger: Globally coherent ULF waves: azimuthal wave numbers and other properties

[FG] Inner Magnetosphere Cross-Energy/Population Interactions

• Topics: wave-particle interactions

1. Mark Engebretson: Location of EMIC Wave Events Relative to the Plasmapause: Van Allen Probes Observations
2. Delong Wang: Geomagnetic Storms and EMIC waves: Van Allen Probe Observations and Related Calculations.
3. Anthony Saikin: Testing Linear Theory on EMIC waves observed by Van Allen Probes
4. Jichun Zhang: EMIC waves and associated relativistic electron precipitation on 25-26 January 2013
5. Kaijun Liu: Ion Bernstein instability dependence on the proton-to-electron mass ratio: linear dispersion theory

[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

This session will begin by completing any presentations that were not finished during the Monday 1:30pm session. There will be presentations by Kai Germaschewski and Amitava Bhattacharjee on incorporating multi-fluid and kinetic effects into global models and an update by Yi-Hsin Liu on efforts to incorporate kinetic modeling into NASA’s CCMC. In the remaining time, there will be an open forum for discussion of topics about reconnection in the magnetosphere and a discussion on topics of interest for next year and the potential future of the reconnection focus group beyond when the current version ends next year.

1600-1800: Splinter Sessions

[FG] Quantitative Assessment of Radiation Belt Modeling

• Topic: “RB "dropout" and "buildup" challenges and future plans”
• Chairs: Steve Morley and Wen Li

1. Hui Zhu: Long-term relativistic radiation belt simulation with VERB code: using various parameterizations
2. Yi-Jiun Su: Formation of the inner electron radiation belt by enhanced large-scale electric fields during the March 2013 storm
3. Mary Hudson: Simulations of the March 2013 and March 2015 Storms
4. Qianli Ma: Magnetosonic waves during the challenge events
5. Weichao Tu: Low-altitude electron distributions during the challenge events
6. Jay Albert: LCDS calculations for the challenge events
7. Ashar Ali (by Scot Elkington): DLL quantification using Van Allen Probes Data
8. Steve Morley on behalf of FG: Summary of challenge event resources

[FG] Inner Magnetosphere Cross-Energy/Population Interactions

• Topics: interactions between plasma and electric/magnetic fields in the mid-tail to inner magnetosphere/ionosphere region

1. Jiang Liu: Depolarization flux boudle’s (DFB) role in exciting inner magnetospheric injections
2. Yiqun Yu: The effect of ionospheric conductance on magnetotail dynamics
3. Thiago Brito: Ion fluxes at geosynchronous orbit from backwards tracing simulations
4. Colby Lemon: TBD
5. Bing Yang: Storm-time convection dynamics viewed from optical aurora: from Streamers to Patch Pulsating Aurora
6. Cristian Ferradas: Temporal evolution of ion spectral structures during a geomagnetic storm: observations and modeling
7. Jichun Zhang : Electron spectral features: observations and simulations

[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 Garcia-Sage: 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