2018 GEM Workshop and GEM-CEDAR Joint Workshop

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 GEM Workshop Coordinator site.

Monday, June 18

1030-1200: Splinter Sessions

[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

• 1. Discussion of Session Topic

• 2. Bob Lysak -- Modeling Pi2 waves

• 3. Toshi Nishimura -- Ionosphere observations of Pc5 ULF waves during 2018 HGSO conjunctions

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

• 5. Jian Yang -- New RCM-I simulation results for buoyancy waves

• 6. Dick Wolf -- Theory of Buoyancy Waves

• 7. Yan Song -- What Causes the Substorm Expansion Phase and Associated ULF Waves?

1330-1500: Splinter Sessions

[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

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

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

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

• 4. Bruce Fritz -- ELF Whistler Dependence on a Sunlit Ionosphere

• 5. Alexander Drozdov -- Modeling of the radiation belts with EMIC waves using the VERB code

• 6. Dedong Wang -- EMIC wave observations from Van Allen Probes and MMS

• 7. Maria Usanova -- TBD

• 8. Hyomin Kim -- Magnetic Induction Coil Array

• 9. Sebastian Cervantes -- TBD

Tuesday, June 19

1330-1500: Splinter Sessions

[FG] Magnetotail Dipolarization and Its Effects on the Inner Magnetosphere

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

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.

  3a) How do we move forward?

  3b) 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?

  3c) 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.

Wednesday, June 20

1030-1200: Splinter Sessions

[Joint] ULF wave Modeling, Effects, and Applications + Modeling Methods and Validation

ULF wave 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] Geospace Systems Science

“Progress in Systems Science”. This session will be comprised of short oral presentations highlighting this year’s progress. Speakers will include Shin Ohtani, Lynn Kistler, Bob McPherron, Brian Walsh, Katariina Nykyri, Misha Sitnov, Alexander Lipatov, and Joe Borovsky

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] 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

1. San Lu, 3D global hybrid code

2. Lin Yu and Lei Cheng, Kinetic Alfven waves in 3D global hybrid code

2. Robert C. Allen: Cassini flyby of the magnetotail

3. Anton Artemyev, thin current sheet

4. Andrei Runov

5. Xiaochen and Quanqi Shi, Kelvin-Helmholtz waves in mid-tail

6. Jiang Liu, Field-aligned currents

7. Chih-Ping Wang

[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

Thursday, June 21

1030-1200: Splinter Sessions

[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

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. 1 2016 Oct 13-15
   
2. 2 2013 March 17
   

Bonus storms (selected by the CCMC Space Weather Capabilities Auroral Assessment team):

1. 3 2015 Jun 21-24
   
2. 4 2012 March 9
   

[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