[GEM] THE GEM MESSENGER, Volume 28, Number 24

Newsletter Editor editor at igpp.ucla.edu
Fri Jun 8 17:38:12 PDT 2018


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     THE GEM MESSENGER
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Volume 28, Number 24
Jun.08,2018

Announcement submission website: http://aten.igpp.ucla.edu/gem/messenger_form/

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Table of Contents

1. GEM 2018 Summer Workshop: Dipolarization Focus Group Sessions

2. New Frontier in Geospace Science at CEDAR Workshop

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1. GEM 2018 Summer Workshop: Dipolarization Focus Group Sessions
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From: Christine Gabrielse (cgabrielse at ucla.edu)

Dear Dipolarization Enthusiasts,

This year the Dipolarization Focus Group will have two sessions on Tuesday afternoon, as well as three joint sessions on Monday with the UMEA and Substorm Focus Groups. 

The Tuesday sessions will include a panel discussion (1:30) and a contributed session (3:30). The panel discussion questions are included below. We have asked some experts in the area to prepare answers to the questions, but we invite the audience to participate in the discussion and 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.

Please contact Drew Turner (drew.lawson.turner at gmail.com) and Christine Gabrielse (cgabrielse at ucla.edu) if you would like to show a few slides. Priority will be given to topics relevant to the questions below as well as how MI-coupling comes into play, but all contributions are welcome. 

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.

Looking forward to seeing you at GEM!

Christine, David, Drew, Slava, Matina


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2. New Frontier in Geospace Science at CEDAR Workshop
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From: Ryan McGranaghan, Tomoko Matsuo, Asti Bhatt, Steve Morley (ryan.mcgranaghan at jpl.nasa.gov)

Dear colleagues, 

We eagerly invite your participation in an exciting session devoted to new directions and innovation in CEDAR science -- Next generation CEDAR science: Addressing geospace system science in the age of data science. We encourage potential speakers and thought-leaders to contact us to be involved. 

This session is targeted to bring together a multi-disciplinary group from across the disciplines of space physics, statistical analysis, and computer and data sciences to:
   - Discuss the application of cutting-edge data science approaches (e.g., machine learning) to geospace system science;
   - Provide a forum to navigate the intersection between innovative data science tools and established methods and models; and
   - Outline the paths from methodology to new fundamental understanding.

Our two-hour session will take place on Wednesday afternoon (June 26) and will use a non-traditional, working group format:
   - 1:30-1:40 — Introduction by conveners
   - 1:40-2:35 — Solicited and contributed talks (~4-5 short talks)
        Confirmed speakers: 
             - Eric Sutton - New methods for thermospheric data assimilation
             - Elizabeth MacDonald - Intersection of Citizen Science and Data Science
             - Christine Gabrielse - Mesoscale analysis of MIT coupling through geospace data fusion
   - 2:35-3:15 — Breakout groups OR round-table discussion (depending on audience size)
   - 3:15-3:30 — Summary and convergence of group discussions/round-table discussion
             - Compile discussion summaries, post to session wiki page, and outline action items to extend collaborations

We pose the following questions for the audience to consider prior to the session and to prepare materials that can help drive discussion:
   - To what extent do traditional methods of geospace research overlap with data-driven techniques?
   - What are the powerful use cases for applying data science in geospace?
   - What is needed for more efficiency in geospace data processing and analysis?
   - What are the immediate next steps to embrace data science approaches in geospace?

Additional discussion questions/topics are encouraged and can be sent to the conveners.

Please get in touch with the conveners if you would like to be involved as a speaker and/or a discussion leader. Looking forward to your participation!

Warm Regards,
Ryan McGranaghan (ryan.mcgranaghan at jpl.nasa.gov)
Tomoko Matsuo (tomoko.matsuo at colorado.edu)
Asti Bhatt (asti.bhatt at sri.com)
Steven Morley (smorley at lanl.gov)


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The Geospace Environment Modeling (GEM) program is sponsored by the Division of Atmospheric and Geospace Sciences (AGS) of the National Science Foundation (NSF).

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