Difference between revisions of "2010 Summer Workshop"

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[[Image:SilvertreeSView.jpg]]
 
[[Image:SilvertreeSView.jpg]]
  
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GEM will be holding its annual summer workshop June 21-26, 2009 at the Snowmass Conference Center in Snowmass, Colorado.  Pre-registration can be made at the [http://www.cpe.vt.edu/gem/index.html GEM Workshop Web Site] by '''June 5, 2009''' (and online registration is open to June 14, 2009). The GEM Workshop Web Site also provides the workshop [http://www.ece.vt.edu/GEM-2009/ agenda]. 
+
GEM will be holding its annual summer workshop at the Snowmass Conference Center in Snowmass, Colorado during June 20-25, 2010.  A special student program will be held on Sunday, June 20.
  
−
The following GEM sessions are calling for presentations.  Poster titles must be submitted to the workshop website no later than Friday, June 12.
+
Logistical information and workshop agenda can be found at the [http://www.cpe.vt.edu/gem/index.html GEM Workshop Web Site].   
  
−
(Note: In the e-mail addresses below the symbol @ is replaced by " [at] ".)
+
Listed below are the call for presentations by various GEM focus groups before the Workshop. (Note: In the e-mail addresses below the symbol @ is replaced by " [at] ".)
  
 
== GGCM Metrics and Validation ==
 
== GGCM Metrics and Validation ==
  
−
== GGCM Modules and Methods ==
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''Conveners: Aaron Ridley <ridley [at] umich.edu> and Masha Kuznetsova <Maria.M.Kuznetsova [at] nasa.gov>''
  
−
Conveners: John Dorelli <john.dorelli [at] nasa.gov>
+
A new Dst index metrics study is added to the GEM Modeling Challenge
 +
organized by the GGCM Metrics and Validation Focus Group. Community
 +
Coordinating Modeling Center (CCMC) is supporting the Challenge.
 +
To participate in the Challenge please submit your model results using
 +
the web interface prior to June 1st, 2010.
  
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The GGCM Methods and Modules Focus group would like to invite participants
+
The results of the Challenge will be discussed at the GGCM Metrics and
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to two sessions to be held at the summer GEM workshop in Snowmass June 21-26.
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Validation Session at the GEM 2010 Summer Workshop. Joint publication
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Both sessions will be held Wednesday, June 24:
+
by all participants is planned. For more details, go to the Challenge
 +
Web site: http://ccmc.gsfc.nasa.gov/support/GEM_metrics_08/
  
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'''Session 1 (10:30 am):  What role does electron dissipation play in open
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Please send questions, comments and suggestions to: Masha Kuznetsova
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boundary condition simulations of magnetic reconnection?'''
+
(Maria.M.Kuznetsova[at]nasa.gov) and Aaron Ridley (ridley[at]umich.edu).
  
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In this session, we would like to continue where we left off last year,
+
== GGCM Modules and Methods ==
−
addressing the following issues:
 
  
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1. What is the role of secondary magnetic islands?  Are they an irrelevant
+
''Conveners: Brian Sullivan (bsullivan [at]artemis.sr.unh.edu); John Dorelli (john.dorelli [at] nasa.gov)and Michael Shay (shay [at] udel.edu) ''
−
by-product, or do they play an essential role in determining the aspect
 
−
ratio of the dissipation region?
 
  
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2. What limits the aspect ratio of the electron dissipation region?
+
The GGCM Methods and Modules Focus Group will hold 2 sessions at the
 +
upcoming GEM Summer Workshop in Snowmass (June 20-25, 2010). The
 +
sessions will be at 10:30 and 1:30 on Wednesday.
  
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3.  How does the reconnection rate scale with dissipation scale parameters
+
The overarching goal of this focus group is to understand the physics
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(e.g., resistivity or electron mass) in simulations (electron MHD, Hall MHD,
+
of collisionless magnetic reconnection on magnetospheric length scales
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hybrid, fully kinetic)?
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(100-1000 ion inertial lengths). We invite potential contributors to
 +
participate with short presentations on the following topics:
  
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'''Session 2 (1:30 pm):  How do we accurately model magnetospheric reconnection  
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1. Scaling of reconnection with local and kinetic scale parameters in
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on a global scale?'''
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MHD, multifluid, and kinetic models.
  
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Topics for this session include:
+
2. Plasmoid instabilities in high Lundquist number current sheets
  
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1. How does the physics of reconnection depend on the ad hoc resistivity
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3. Dependence (or independence) of the dayside reconnection rate on
−
model used in global MHD codes?  In particular, how does reconnection scale
+
solar wind parameters.
−
with resistivity in the high Lundquist number limit? What is the effect of
 
−
numerical resistivity? Can we reproduce Petschek reconnection by localizing
 
−
the plasma resistivity? What is the effect of current dependent resistivity?
 
  
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2. How does dayside magnetopause reconnection work in global MHD codes?
+
or any other topics of interest to the focus group. This is the final
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Is reconnection locally controlled or externally driven?  Does the Cassak-
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year of the GGCM Methods and Modules Focus Group. Looking forward, as
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Shay formula apply to the dayside magnetopause?
+
this focus group comes to an end, a major goal for this year's
 +
sessions will be to agree on a way to present the most significant
 +
results of geophysical magnetic reconnection research to the greater
 +
GEM community and to identify a few outstanding questions to address
 +
as we plan for future focus groups centered on the multi-scale physics
 +
of reconnection in the magnetosphere. A more detailed description of
 +
the objectives of this focus group can be found at
  
−
3. What is the status of global Hall MHD modeling?  What are the most
+
http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG2._GGCM_Modules_and_Meth
−
robust numerical approaches?  What are the new results coming from the
+
ods
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latest generation of global Hall MHD magnetosphere codes?
 
  
−
4.  What is the status of other non-MHD approaches to global magnetosphere
+
Potential Contributors are encouraged to contact Brian Sullivan
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modeling (e.g., global hybrid codes)?  Are there any new ideas on the  
+
(brian.sullivan [at] unh.edu) with the title of their presentation.
−
horizon?
 
  
−
If you are interested in participating in either of these sessions, please
+
== Plasma Entry and Transport into and within the Magnetotail (PET) ==
−
email one of the focus group co-chairs:
 
  
−
john.dorelli [at] nasa.gov or
+
''Conveners: Antonius Otto <ao [at] how.gi.alaska.edu>,Jay R. Johnson <jrj [at] pppl.gov>, and Simon Wing <Simon.Wing [at] jhuapl.edu>''
−
brian.sullivan [at] unh.edu.
 
  
−
== Bow Shock Phenomena and their Magnetospheric Impacts ==
+
We would like to invite contributions to the PET focus group at the
 +
upcoming GEM workshop in Snowmass on June 21-25, 2010.  The sessions
 +
will be held in a workshop (NOT AGU) style in which each speaker will
 +
be allotted time for a 2-3 slides, in order to ensure enough time for
 +
discussion.  In order to encourage this, at least one of the slides
 +
should deal with unresolved issues.  Speakers are encouraged to end
 +
the presentation with outstanding questions rather than a summary of
 +
what has/have been accomplished.  It is expected that there will be
 +
three sessions:
 +
(1) ion outflow effects on the plasma sheet;
 +
(2) Constraints on plasma sheet entry and transport; and
 +
(3) GEM challenge, northward and southward IMF.
 +
 
 +
All three sessions have been tentatively scheduled on Monday Jun 21
 +
(See http://www.cpe.vt.edu/gem/index.html for the definitive schedule).
 +
If you have not already done so, please send the title(s) and
 +
session(s) of your contribution(s) to us at your earliest convenience
 +
at the email addresses given above.
 +
 
 +
== Physical Processes in the Cusps: Plasma Transport and Energization ==
  
−
Conveners: N. Omidi <omidi [at] solanasci.com>, D. Sibeck <david.g.sibeck [at] nasa.gov>
+
''Conveners: K.J. Trattner(trattner [at] mail.spasci.com), N. Omidi (omidi [at] solanasci.com) and D. Sibeck (david.g.sibeck [at] nasa.gov)''
  
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During the 2009 GEM Summer workshop at Snowmass Colorado, a session on the
+
Presentations are solicited for the CUSP Focus Group to be held during
−
bow shock and its magnetospheric impacts will be held on Monday June 22nd.  
+
the 2010 Summer GEM workshop in Snowmass Colorado. This is the last
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This marks the last year of the Bow Shock Focus Group and in addition to  
+
year of the Cusp Focus Group who's main objective is to utilize
−
discussion of recent observations, modeling, and theory of the bow shock and  
+
observations, modeling, and theory of the cusp and its role in
−
related processes in the foreshock and the magnetosheath we will discuss
+
particle acceleration and plasma transport. Based on the topics in
−
future plans. In particular, N. Omidi will provide a summary of
+
earlier years and the discussions during the mini-workshop held during
−
accomplishments and current status and D. Sibeck will discuss future
+
the 2009 Fall AGU, the Focus Group addresses the following topics:
−
missions followed by solicitation and discussion of ideas about future
 
−
directions and plans.
 
  
−
Those who are interested and wish to show a few
+
1. Plasma transport into the cusp.
−
relevant slides are invited to contact the conveners:
 
  
−
omidi [at] solanasci.com, David.G.Sibeck [at] nasa.gov.  
+
2. Energization of ions in diamagnetic cavities.
  
−
For updated information please see http://www.cpe.vt.edu/gem/index.html .
+
3. Origin of waves observed in the cusp and their role in particle
 +
scattering and acceleration.
  
−
== Plasma Entry and Tranport into and within the Magnetotail (PET) ==
+
4. Interaction of FTE's with the cusp.
  
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Conveners: Larry Kepko <larry.kepko [at] unh.edu>
+
5. The source region of energetic ions and electrons observed in the
 +
cusp.
  
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The Modes of Transport focus group will hold 2 breakout sessions at
+
6. Ionospheric signatures of such processes such as Poleward Moving
−
the upcoming GEM Workshop in Snowmass (June 21-26, 2009). Both
+
Auroral Forms
−
sessions will be held on the afternoon of Tuesday, June 23. This focus
 
−
group seeks to improve our knowledge of the physical mechanisms that
 
−
provide for different dynamical modes of response of the magnetotail
 
−
to the solar wind.
 
  
−
1) This first session seeks event, statistical and theoretical studies
+
It is the ultimate goal of the workshop to enhance our understanding
−
of solar wind coupling and magnetospheric response. Topics include
+
of the cusp physics, its coupling to other parts of the system such as
−
(but are not limited to) sawtooth events, steady magnetospheric
+
the bow shock, magnetopause and the ionosphere and the important role
−
convection, and pseudo-breakups.
+
it plays in dayside transport and energization. Observational and
 +
theoretical contributions to this session are hereby solicited.
  
−
2) In this second session we seek to: a) Identify questions that can be
+
Those interested in these topics are invited to attend and contribute
−
addressed with global MHD simulations and b) Find events, particularly
+
through showing a few slides and/or participation in the discussions.
−
during the THEMIS era, that can be used to answer the questions
+
Information regarding hotel reservations and travel arrangements will
−
developed in (a). This session will be old-school workshop format, so
+
be posted on the GEM website (http://www.cpe.vt.edu/gem) in the near
−
participants are encouraged to bring plots and data for particular
+
future.
−
events.
 
  
−
Interested participants should email either Larry Kepko (larry.kepko
+
Those wishing to give a presentation or with questions
−
[at] unh.edu) or Bob McPherron (rmcpherron [at] igpp.ucla.edu).
+
regarding the workshop should contact the conveners:
 +
''trattner [at] mail.spasci.com, omidi [at] solanasci.com or
 +
david.g.sibeck [at] nasa.gov.''
  
−
== Dayside Magnetopause Reconnection ==
+
== Near Earth Magnetosphere: Plasma, Fields and Coupling ==
  
−
== Physical Processes in the Cusps: Plasma Transport and Energization ==
+
''Conveners: Focus Group co-chairs: Sorin Zaharia <szaharia [at] lanl.gov>,''
 +
''Stan Sazykin <sazykin [at] rice.edu> and Benoit Lavraud <Benoit.Lavraud [at] cesr.fr>''
  
−
Conveners: K.J. Trattner, N. Omidi and D. Sibeck
+
The Near Earth Magnetosphere: Plasma, Fields and Coupling Focus Group
 +
will hold 3 sessions at the upcoming GEM Summer Workshop in Snowmass
 +
(June 20-25, 2010).
  
−
During the 2009 Summer GEM workshop in Snowmass Colorado, a number of
+
We invite potential contributors to participate with short
−
sessions on the physical processes in the cusp will be held. The main
+
presentations on the following topics:
−
objective of these sessions is to utilize observations, modeling, and theory
 
−
of the cusp and its role in particle acceleration and plasma transport to  
 
−
assess the current status of the field and forge collaborative efforts
 
−
towards addressing outstanding issues in the future. Based on the topics in
 
−
earlier years and the discussions during the mini-workshop held during the
 
−
2008 Fall AGU, we plan to focus on the following topics:
 
  
−
1. Plasma transport into the cusp.
+
1). Effect of plasma on storm-time electric and magnetic fields
  
−
2. Energization of ions in diamagnetic cavities.
+
2). Plasma sheet effect on ring current dynamics
  
−
3. Origin of waves observed in the cusp and their role in particle scattering and acceleration.
+
3). Electric fields in the near-Earth magnetosphere (potential and inductive)
  
−
4. Interaction of FTE's with the cusp.
+
4). Coupling of physics-based inner magnetosphere with global magnetosphere models
  
−
5. The source region of energetic ions and electrons observed in the cusp.
+
or any other topics of interest to the focus group. It is the ultimate
 +
goal of the focus group to improve physical knowledge and modeling of
 +
the near-Earth (closer than 10 RE) magnetosphere and its coupling with
 +
the outer magnetosphere; a more detailed description of the focus
 +
group objectives can be found at
  
−
6. Ionospheric signatures of such processes such as Poleward Moving Auroral Forms
+
http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG8._Near_Earth_Magnetosphere:_plasma%2C_fields%2C_and_coupling
  
−
It is the ultimate goal of the workshop to enhance our understanding of the  
+
Potential contributors are encouraged to contact Sorin Zaharia
−
cusp physics, its coupling to other parts of the system such as the bow
+
(szaharia at lanl.gov) with the title of their presentation.
−
shock, magnetopause and the ionosphere and the important role it plays in
 
−
dayside transport and energization. Observational and theoretical
 
−
contributions to this session are hereby solicited.
 
  
−
Those interested in these topics are invited to attend and contribute
+
== Space Radiation Climatology ==
−
through showing a few slides and/or participation in the discussions. 
 
−
Information regarding hotel reservations and travel arrangements will be
 
−
posted on the GEM website (http://www.cpe.vt.edu/gem) in the near future. 
 
−
Those wishing to give a presentation or with questions regarding the
 
−
workshop should contact the conveners:
 
  
−
trattner [at] mail.spasci.com, omidi [at]solanasci.com or david.g.sibeck [at] nasa.gov.
+
''Conveners: Paul O'Brien (paul.obrien [at] aero.org);Geoff Reeves (reeves [at] lanl.gov), Bob Weigel (rweigel-at-gmu.edu), and Reiner Friedel (friedel-at-lanl.gov)''
  
−
== Magnetosphere-Ionosphere Coupling, Electrodynamics and Transport (MICET) ==
 
  
−
== Near Earth Magnetosphere: Plasma, Fields and Coupling ==
+
It's almost time for the GEM Summer Workshop, joint with CEDAR. The
 +
Space Radiation Climatology Focus Group (FG9) will meet for three
 +
breakout sessions: two on Thursday June 24th: 1:30-3:30 and 3:30-5,
 +
and one on Friday, the 25th, 10:30-12:15. We will be discussing the
 +
past year's results in reanalysis, data assimilation, climatology
 +
models, and long-term data/analysis. One of our sessions (the first
 +
one) will be joint with the new radiation belt focus group.
  
−
Conveners: Focus Group co-chairs: Sorin Zaharia <szaharia [at] lanl.gov>,  
+
We already have a number of exciting talks lined up, but there's
−
Stan Sazykin <sazykin [at] rice.edu> and Benoit Lavraud <Benoit.Lavraud [at] cesr.fr>
+
plenty of room for more. We encourage interested parties to send talk
−
+
ideas to Paul O'Brien, Bob Weigel, and/or Reiner Friedel (Geoff will
−
We would like to invite potential contributors to the Near Earth
+
not be able to attend this year). If you are presenting an FG9-related
−
Magnetosphere: Plasma, Fields and Coupling Focus Group at the upcoming GEM
+
poster, please sign up for the **Thursday** Poster Session and
−
Summer Workshop in Snowmass (June 21-26, 2009) to participate with modeling,
+
advertise on the Wiki. http://www.virbo.org/GEM_FG9_2010
−
theoretical and observational studies related to the topics below. Our focus
 
−
group will have 3 breakout sessions on June 24 (Wed.) (for the full schedule
 
−
of the workshop see http://www.ece.vt.edu/GEM-2009).
 
−
 
−
(1) Better observational knowledge/empirical models of fields and particles
 
−
relevant to the near-Earth magnetosphere (including plasma sheet models to
 
−
be used as input for near-Earth magnetosphere models); studies related to
 
−
better knowledge of the electric fields (convection and induced) are
 
−
particularly encouraged.
 
−
 
−
(2) Improvements in physics-based modeling, including coupling between
 
−
different elements in the models (plasma, electric and magnetic fields), as
 
−
well as inner-outer magnetosphere coupling; studies that address the effect
 
−
of the above coupling on the inner magnetosphere structure/dynamics,
 
−
including potential improvement of consistency with observations. A
 
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significant part of this session will be devoted to presentations of results
 
−
related to the Near-Earth Magnetosphere Modeling Challenge. A description of
 
−
the Challenge can also be found at the Wiki address above.
 
−
 
−
Potential contributors are urged to contact the conveners indicating their
 
−
interest in participating. The sessions will be held workshop-style, with
 
−
contributers encouraged to limit their number of slides to maximum 5. Please
 
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send the title of your contribution to us at the email addresses above.
 
−
 
−
Besides the 2 sessions dedicated to the topics above, a 3rd session will be
 
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devoted to refining the direction of the focus group in the future;
 
−
community input is both welcome and appreciated. It is the ultimate goal of
 
−
the focus group to improve physical knowledge and modeling of the near-Earth
 
−
(< 10 RE) magnetosphere and its coupling with the outer magnetosphere. An
 
−
outline of the major topics of interest of the focus group can be found at:
 
−
 
−
http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG8._Near_Earth_Magnetosphere:_plasma%2C_fields%2C_and_coupling
 
  
−
== Space Radiation Climatology ==
+
To view the FG9 email archive or to join the email group, go to
 +
http://groups.google.com/group/gem-2007-space-radiation-climatology-fg9
  
 
== Diffuse Auroral Precipitation ==
 
== Diffuse Auroral Precipitation ==
  
−
Conveners: Richard Thorne <rmt [at] atmos.ucla.edu>
+
''Conveners: Richard Thorne <rmt [at] atmos.ucla.edu>''
−
+
 
−
There will be four separate breakout sessions devoted to the Diffuse Auroral
+
The Diffuse Aurora Focus Group plans to hold 4 breakout sessions at
−
Precipitation Focus Group at the 2009 GEM workshop.
+
the 2010 GEM meeting in Snowmass this summer. Potential contributors
 +
are invited to contact the session chairs listed below with a title of
 +
their talk, and prepare a brief presentation for the workshop.
  
−
'''Session 1'''
+
'''1. Relationship between auroral phenomenology and scattering mechanisms'''
 +
[Co-chairs, Binbin Ni (bbni[at}atmos.ucla.edu)
 +
and Robert Michell (rmichell[at]swri.edu)]
  
−
Tu, 23 June, 1:30 p.m. - 3:00 p.m.
+
*Monday June 21: 10:30-12:15:  
  
−
DAP 1:  " Understanding Diffuse Auroral Structure "
+
'''2. Modulation of DA brightness by large-scale magnetospheric processes.'''
 +
[Co-chairs, Marilia Samara
 +
(marilia.samara[at]swri.org) and Jacob Bortnik (jbortnik[at]gmail.com )]
  
−
Co-chaired by Marilla Samara (msamara [at] swri.edu) and Robert Michell
+
*Monday June 21: 1:3-3:00:
−
(rmichell [at] swri.edu).
 
  
−
We invite contributions relating to the wide range of observable auroral
+
'''3. Spatial and temporal extent and spatio-temporal occurrence of DA/scattering mechanisms'''
−
structures and their classification. Diffuse aurora contains a wide range of  
+
[Co-chairs, Toshi Nishimura
−
structures including the most fine scale features. However, the mechanisms  
+
(toshi[at]atmos.ucla.edu) and Richard Thorne (rmt[at]atmos.ucla.edu)]
−
causing structure in aurora, whether discrete or diffuse, need to be defined
 
−
within a larger theoretical understanding, which requires consistency in
 
−
verification resulting from observations of all types of structures.
 
  
−
Therefore, we would like to broaden the discussion to include more than what
+
*Monday June 21: 3:30-5:00:
−
is often deemed to be diffuse auroral structure. A main re-occurring theme
 
−
is the confusion on what is actually termed diffuse aurora and most
 
−
importantly how to recognize it in optical data.
 
  
−
Topics for discussion will include:
+
'''4. Importance of the DA for Geospace at the system level. Plans for next year.'''
 +
[Chair, Richard Thorne (rmt[at]atmos.ucla.edu)]
  
−
1. Variety of auroral structure (and characteristics) observed to date with
+
*Tuesday June 22: 10:30-12:15:
−
ground imagers, satellite-borne imagers and their counterparts in the in
 
−
situ particle measurements.
 
  
−
2. Working definition of diffuse aurora: Historical context and observations.
+
== Plasmasphere-Magnetosphere Interactions (PMI) ==
−
Is it ever really structureless?
 
  
−
3. Current knowledge of what these diffuse auroral structures tell us about
+
''Conveners: From: Jerry Goldstein <jgoldstein [at] swri.edu> and Maria Spasojevic <mariaspasojevic [at] stanford.edu>''
−
in situ and wave scattering processes (connection to the other 2 sessions).  
 
−
What future measurements and models will add to the current understanding?
 
  
−
Input on how to further shape this session is welcome and encouraged.
+
The Plasmasphere-Magnetosphere Interactions (PMI) focus group will
 +
hold several sessions at the 2010 GEM Workshop, during 20-25 June 2010.
  
 +
We invite short presentations (several slides) related to any of the
 +
PMI's broad topics:
  
−
'''Session 2'''
+
+  Wave-Particle Interactions
  
−
Tu, 23 June, 3:30 - 5:00 p.m.
+
+  Plume Dynamics & Recirculation
  
−
DAP 2:  "The Relationship Between Diffuse Aurora and the Dynamics and Structure of the Magnetosphere"
+
+  Plasma Density Structure & Evolution.
  
−
Co-chaired by Eric Donovan (edonovan [at] ucalgary.ca) Marilia Samara and Robert Mitchell
+
Specific topics of interest:
 +
*  Dynamics of energetic particles
 +
*  Wave theory and observations
 +
*  Simulations or models of acceleration or loss
 +
*  Morphology and dynamics of cold plasma density
 +
*  Global circulation of plasmaspheric plumes
 +
*  Dayside distribution of cold plasma ions
 +
*  Fine scale plasma structure and flow turbulence.
 +
*  Plume plasma and magnetospheric reconnection.
  
−
A number of different types of aurora are classified as diffuse. These
+
or any other topic you feel would be of interest to the PMI focus
−
aurora are caused by a number of distinct precipitation mechanisms which
+
group.
−
sometimes overlap in space. Unlike discrete aurora, in most instances
 
−
diffuse aurora is a more or less direct consequence of a process or
 
−
processes in the magnetosphere, and so temporal variations of and
 
−
spatial gradients in brightness are thought to convey significant
 
−
information about those magnetospheric processes. Further, diffuse
 
−
auroral precipitation plays some role in the loss of magnetospheric
 
−
particles and in carrying large- and possibly small-scale currents, and
 
−
so the diffuse aurora is important in the system-level behavior of
 
−
geospace.
 
  
−
In this session we will be exploring the use of diffuse aurora to remote
+
If you would like to present, please e-mail your tentative title/topic
−
sense magnetospheric dynamics, and the role of diffuse aurora in those
+
to:
−
dynamics. We encourage contributions about (1) the physical meaning (in
 
−
terms of magnetospheric dynamics and topology) of diffuse auroral
 
−
boundaries and their temporal evolution, variations in brightness, as
 
−
well as (2) the importance of diffuse aurora in carrying large-scale
 
−
currents and magnetospheric particle loss. We encourage presentations
 
−
based on observational and theoretical/modelling work. We are hoping for
 
−
presentations describing work that utilizes coordinated ground-based
 
−
(ASIs, induction coil & fluxgate magnetometers, riometers, ISRs, etc)
 
−
and in situ (THEMIS, FAST, Polar, Geotail, LANL, etc) observations.
 
  
−
Topics for discussion will include
+
JGoldstein [at] swri.edu.
  
−
1. How is the motion of diffuse auroral structures related to
+
== Substorm Expansion Onset: The First 10 Minutes ==
−
magnetospheric convection?
 
  
−
2. The poleward boundary of the diffuse “redline” aurora has been widely
+
''Conveners: Vassilis Angelopoulos  (Vassilis[at] ucla.edu); Kazuo Shiokawa (Shiokawa [at] stelab.nagoya-u.ac.jp) ; Andrei Runov (arunov [at] igpp.ucla.edu)  and Shin Ohtani  (Ohtani [at] jhuapl.edu)''
−
used as a proxy for the open-closed field line boundary. In terms of the
 
−
magnetosphere, what does the equatorward boundary of the redline aurora
 
−
correspond to?
 
  
−
3. What is the "state of the art" in terms of using intensity ratios to
+
Our focus group, "Substorm Expansion Onset: The First 10 Minutes",
−
infer characteristics of precipitating particles?
+
will have 4 sessions at the upcoming GEM Workshop in Snowmass (June
 +
20-25, 2010).  They are scheduled on June 24 (Thu) and 25 (Fri). 
  
−
4. What is the instantaneous spatial extent of different types of
+
We have four topical areas identified, which are:
−
diffuse aurora?
 
  
−
5. How do large-scale processes (eg., solar wind pressure pulses, ULF
+
1. Onset timing: observations/theory/simulations (Angelopoulos)
−
waves including Pi2s, etc) modulate diffuse auroral brightness?
 
  
−
6. How do diffuse aurora of different types relate to currents?
+
2. How do onset signatures propagate to near Earth and to the ground?
 +
(Runov)
  
−
7. How do diffuse aurora of different relate to magnetospheric particle
+
3. Ground-space mapping of physical processes before/during/after
−
loss?
+
onset (Ohtani)
  
 +
4. Substorm processes near transition between stretched and dipole
 +
field lines (Shiokawa)
  
 +
We would like to invite you to participate, and if you have any
 +
request or question, please contact the person of the topical area of
 +
your interest, whose name is in the parentheses for each topic.
  
−
'''Session 3'''
+
The description of our focus group is posted at:
 +
http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG12._Substorm_Expansion_Onset:_The_First_10_Minutes
  
−
Wed, 24 June, 10:30 a.m. - 12:15 p.m.
+
== Modes of Solar Wind-Magnetosphere Energy Transfer ==
  
−
DAP 3 "Modeling Electron Scattering Rates by ECH waves and Chorus"
+
''Convener: Larry Kepko (larry.kepko [at] unh.edu) and Bob McPherron (rmcpherron [at] igpp.ucla.edu)''
  
−
Co-chaired by Richard Thorne  (rmt [at] atmos.ucla.edu) and Binbin Ni
 
−
(bbni [at] atmos.ucla.edu).
 
  
−
This session will examine the global morphology, spectral properties, and
+
The Modes of Magnetospheric Response focus group will hold three
−
variability of two classes of magnetospheric plasma waves, electrostatic
+
sessions at the upcoming GEM Workshop (June 20-25) in Snowmass, CO,
−
electron cyclotron harmonic (ECH) and electromagnetic whistler mode chorus
+
covering the following topics:
−
plasma waves, which are capable of scattering plasma sheet electrons,  
 
−
leading to diffuse auroral precipitation. Theoretical calculations of pitch-
 
−
angle scattering rates from each class of wave will be presented to assess
 
−
their potential contribution to the global pattern of diffuse auroral
 
−
precipitation.
 
  
 +
1. Dayside observations during sawtooth events, the role of polar cap
 +
saturation, and implications for the magnetospheric response.
 +
Specifically, are particle injections on the dayside dispersionless or
 +
dispersive? Can sawtooth observations be understood as substorms that
 +
penetrate deep into the inner magnetosphere, or do sawtooth represent
 +
a fundamentally different state of the magnetosphere? We particularly
 +
encourage participants to bring data that addresses the issue of
 +
dayside injection and/or dipolarization.
  
−
'''Session 4'''
+
2. Non-linear coupling and the role of pre-conditioning in determining
 +
the response mode. Example topics and questions include: Systematic
 +
errors in activity indices; Seasonal effects on coupling functions;
 +
mass-loading effects on convection; The storm/substorm/SMC
 +
relationship.
  
−
Wed, 24 June, 1:30 – 5:00 p.m.
+
3. Magnetospheric response and solar wind energy transfer during the
 +
extreme solar minimum.
  
−
DAP 4: "Required Inputs for Global Modeling: Plans for 2009-2010
+
This focus group has as its aim the improvement of knowledge of the
−
Activities"
+
physical mechanisms that provide different dynamical modes of response
 +
of the magnetotail to the solar wind. These include substorms, steady
 +
magnetospheric convection, sawtooth injection events, pseudo breakups,
 +
and poleward boundary intensifications. A complete description of the
 +
FG and its goals can be found at http://bit.ly/beGmTF
  
−
Co-chaired by Margaret Chen (Margaret.W.Chen [at] aero.org) and Richard Thorne
+
'''Schedule Change'''
−
(rmt [at] atmos.ucla.edu)
 
  
−
In this session we will discuss how data and theoretical scattering rates
+
To minimize overlap with the "First 10 Minutes" focus group the "Modes of Magnetospheric Response" has been moved to the following dates and times:
−
can best be implemented in future models of the global distribution of
 
−
diffuse auroral precipitation. We will also outline plans and objectives for
 
−
the next year of the campaign.
 
  
 +
Wednesday 6/23, 10:30 am - 12:15 pm, and 3:30-5:00 pm
 +
Thursday 6/24, 10:30 am - 12:15 pm
  
−
Anyone interested in contributing to any of these sessions is encouraged to
+
Please contact us if you are interested in presenting in one of the sessions [''Larry Kepko (larry.kepko [at] unh.edu) and Bob McPherron (rmcpherron [at] igpp.ucla.edu)'']:
−
contact the relevant session chairs.
 
  
−
== Plasmasphere-Magnetosphere Interactions ==
+
1. Dayside observations during sawtooth events, the role of polar cap saturation, and implications for the magnetospheric response. Specifically, are particle injections on the dayside dispersionless or dispersive? Can sawtooth observations be understood as substorms that penetrate deep into the inner magnetosphere, or do sawtooth represent a fundamentally different state of the magnetosphere? We particularly encourage participants to bring data that addresses the issue of dayside injection and/or dipolarization.
  
−
Conveners: From: Jerry Goldstein <jgoldstein [at] swri.edu> and Maria Spasojevic <mariaspasojevic [at] stanford.edu>
+
2. Non-linear coupling and the role of pre-conditioning in determining the response mode. Example topics and questions include: Systematic errors in activity indices; Seasonal effects on coupling functions; mass-loading effects on convection; The storm/substorm/SMC relationship.
  
−
The 2009 GEM workshop will feature FIVE sessions for the Focus Group
+
3. Magnetospheric response, state of the magnetosphere, and solar wind energy transfer during the extreme solar minimum.
−
"Plasmasphere-Magnetosphere Interactions" (PMI). This focus group seeks to
 
−
improve our understanding of the two-way coupling between the plasmasphere
 
−
and magnetosphere.  The PMI Focus Group website can be reached here:
 
−
http://tinyurl.com/pmiFGwiki
 
  
−
Anyone interested in participating or contributing is encouraged to email
+
== Magnetosheath Studies ==
−
Jerry Goldstein (jgoldstein [at] swri.edu) or Maria Spasojevic
 
−
(mariaspasojevic [at] stanford.edu).
 
  
−
'''The five (5) PMI sessions to be held at the upcoming 2009 GEM:'''
+
''Convener: Steven Petrinec (steve.petrinec [at] gmail.com) and Katariina Nykyri (nykyrik [at] erau.edu)''
  
−
''MON 22 JUN: 10:30am - 12:15pm PMI Breakout 1A:''
+
Magnetosheath focus group will hold sessions at the next GEM workshop
 +
on 21-25th of June, 2010 in Snowmass Village Colorado. We invite short
 +
presentations related to any of the focus group topics.
  
−
"Wave Growth and Propagation"
+
The Primary Objectives and Expected Activities of the FG:
  
−
''MON 22 JUN: 1:30 - 3:00pm PMI Breakout 1B:''
+
1. To produce more comprehensive models of large scale magnetosheath
 +
flow and field patterns, and geometry of the magnetosheath region
  
−
"Plasma Influence on Wave Particle Interactions"
+
2. To improve understanding of magnetosheath plasma instabilities and
 +
wave particle interactions: Spatial distribution and characteristics
  
−
''MON 22 JUN: 3:30 - 5:00pm PMI Breakout 2:''
+
3. To develop a better understanding of the effects on magnetospheric
 +
dynamics due to processes occurring in the magnetosheath and due to
 +
characteristic magnetosheath properties.
  
−
"Plume Transport, Evolution, and Influence"
+
The focus group proposal with specific science questions can be found
 +
at
 +
http://gem.epss.ucla.edu/mediawiki/pdf/GEM_FG_MSheath_proposal.pdf.
  
−
''TUE 23 JUN: 10:30am - 12:15pm PMI Breakout 3:''
+
We especially encourage data-analysts utilizing in-situ spacecraft
 +
measurements from Themis and Cluster missions, theoretical modelers,
 +
global and local modelers to participate in this workshop and present
 +
your findings. We also encourage presentations of studies of
 +
magnetosheaths around other solar system bodies, as they relate to the
 +
terrestrial magnetosheath.
  
−
"Plasma Density Structure and Evolution"
+
See GEM website for further details: http://www.cpe.vt.edu/gem/
  
−
''THU 25 JUN: 3:30 - 5:00pm Joint PMI-CEDAR session:''
+
== Radiation-Belt and Waves Modeling (RBWM) ==
  
−
"Plasmasphere, Magnetosphere, Ionosphere:  Overall System Response"
+
''Conveners: Yuri Shprits, UCLA (yshprits [at] atmos.ucla.edu); Scot Elkington, LASP (Scot.Elkington [at] lasp.colorado.edu); Jacob Bortnik, UCLA (jbortnik [at] atmos.ucla.edu);Craig Kletzing, U. Iowa (craig-kletzing [at] uiowa.edu)''
  
−
More complete descriptions of these sessions are listed below under "SESSION
+
The Radiation-Belt and Waves Modeling (RBWM) focus group will
−
DESCRIPTIONS".
+
hold several sessions at the 2010 GEM Workshop, during 20-25 June 2010.
  
−
Interested in participating or contributing?  Contact:
+
We invite short presentations (several slides) related to any of
 +
RBWM's broad topics:
  
−
Jerry Goldstein (jgoldstein [at] swri.edu)
+
- Wave excitation, propagation and distribution (ULF, VLF, etc.)
−
Maria Spasojevic (mariaspasojevic [at] stanford.edu).
 
  
−
'''SESSION DESCRIPTIONS'''
+
- Dynamical modeling of the radiation belts (acceleration, loss, etc.)
  
−
MON 22 JUN: 10:30am - 12:15pm PMI Breakout 1A: "Wave Growth and
+
- Wave-particle interactions (linear, nonlinear, non-resonant)
−
Propagation"
 
  
−
''How does the evolving global distribution of cold plasma govern the growth
+
The RBWM focus group kicks off this year, and aims to achieve a first-
−
and propagation of waves that control energetic particle distributions &
+
principles understanding of the coupled dynamic variability of the
−
dynamics?''
+
radiation-belts, and the wave environment that controls it. A few
 +
sample questions that are of particular interest to this focus group
 +
are:
  
−
This session focuses on the influence of ambient plasma upon how waves are
+
- what are the physical processes responsible for wave excitation?
−
produced, and how they propagate.  To be examined are the conditions for  
 
−
growth and propagation of various waves including EMIC, whistlers (hiss,
 
−
chorus), ULF, especially the  influence of ambient plasma properties (such
 
−
as density, composition, and spatial  structure on various scale sizes).
 
  
 +
- what are the spatiotemporal distributions of various plasma waves
 +
and what are their relative roles in producing acceleration/loss?
  
−
MON 22 JUN: 1:30 - 3:00pm PMI Breakout 1B: "Plasma Influence on Wave
+
- what are the roles of linear, nonlinear, and non-diffusive wave-
−
Particle Interactions"
+
particle interactions in RB dynamics?
  
−
''How do ambient plasma properties such as temperature, density, and
+
- what are the quantitative effects of transport via interactions with
−
composition influence wave particle interactions?''
+
ULF waves?
  
−
This session focuses on how ambient plasma influences the waves-particle
+
- what is the role of the seed population in radiation belt dynamics?
−
interactions themselves, examining how various plasma properties (such as
 
−
density, composition, and spatial structure on various scale sizes) help
 
−
govern the effectiveness of various waves in changing the energy or pitch
 
−
angle of energetic particles.
 
  
 +
- why do some storms produce flux increases, decreases, or no
 +
variation?
  
−
MON 22 JUN: 3:30 - 5:00pm PMI Breakout 2:
+
If you would like to learn more about this focus group, or submit a
−
"Plume Transport, Evolution, and Influence"
+
presentation, please use the following resources:
  
−
''How is eroded plasmaspheric material transported, how does it evolve and
+
Wiki page
−
influence reconnection?''
+
http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_Radiation_Belts_and_Wave_Modeling
  
−
This session will examine the formation, dynamics, and fate of
+
We look forward to your participation
−
plasmaspheric  plume plasma.  Specific topics to be addressed include (but
 
−
are not limited to):  observation or modeling of cold, dense plasma mixed
 
−
with magnetospheric plasma, plume plasma at reconnection sites or on open
 
−
field lines, recirculation or redistribution of cold, dense plasma into the
 
−
cusp and plasmasheet.
 
  
 +
'''Radiation Belts and Wave Modeling (RBWM) session description:'''
 +
 +
We will have 6 sessions this year: You can submit the title of your presentation online by following the link below to reserve a time slot during each individual session. We invite potential contributions and encourage to limit presentations to approximately 5 min.
 +
 +
http://spreadsheets.google.com/viewform?hl=en&formkey=dEhELVhvSXg5VS1HQmd3dzhCY3BaMGc6MQ
 +
 +
 +
''Tues PM 1: RBWM 1 -- Dynamical modeling of the radiation belts (Model development, verification, validation) (Scot Elkington and Yuri Shprits)''
  
−
TUE 23 JUN: 10:30am - 12:15pm PMI Breakout 3:
+
During this session we will discuss the development of new and improvement of existing models of particle transport, scattering, and acceleration in the radiation belts.  We will discuss future plans for model inter-comparison and for comparison of models with observations.
−
"Plasma Density Structure and Evolution"
 
  
−
''How do various plasma density structures originate and evolve during various
+
−
phases of geomagnetic activity?''
+
''Tues PM 2: RBWM 2 -- Dynamical modeling of the radiation belts (Preparing Radiation Belt models for RBSP data) (Scot Elkington and Yuri Shprits)''
 +
 +
During this session we will concentrate on comparing model results with observations from RBSP and other missions such as ORBITALS, ERG, and BARREL.
  
−
This session will focus upon outstanding questions about the dynamics of
+
−
density structures in the plasmaspheric.  Potential topics to be covered
+
''Wed AM 2: RBWM 3 -- Wave-particle interactions (Particle scattering and transport) (Scot Elkington and Yuri Shprits)''
−
include, plume, fine structure & turbulence, plasma instabilities, refilling,
+
         
−
ionosphere-thermosphere-plasmasphere interactions, and subcorotation.
+
We will discuss quasi-liner and non-liner pitch-angle, energy, and radial scattering and will discuss other potentially important acceleration and loss mechanisms operating in the radiation belts.  
  
  
−
THU 25 JUN: 3:30 - 5:00pm; Joint PMI-CEDAR session:
+
''Wed PM 1: RBWM 4 -- Wave excitation, propagation, and distribution (ULF) (Jacob Bortnik and Craig Kletzing)''
 +
         
 +
We will discuss excitation, propagation and distribution of ULF waves. We would like to invite contributions concerning modeling and observations.
  
−
"Plasmasphere, Magnetosphere, Ionosphere:  Overall System Response"
+
 
 +
''Wed PM 2: RBWM 5 -- Wave excitation, propagation and distribution (VLF) (Jacob Bortnik and Craig Kletzing)''
  
−
''How do PMI processes influence the overall system response to storms?''
+
We will discuss excitation, propagation and distribution of VLF waves. We would like to invite contributions concerning modeling and observations.
  
−
This session will investigate the effects of redistribution of thermal ions
+
 
−
(ionospheric and plasmaspheric) on the stormtime response of the overall
+
''Thur AM 2: RBWM 6 -- Planning session (Jacob Bortnik, Scot Elkington, Craig Kletzing, and Yuri Shprits)''
−
magnetospheric system.  The goal is to develop our understanding of the
 
−
interaction among components of the larger system.
 
  
−
Contact:
+
We will discuss future plans of model development, validation, and verification. We will discuss potential future GEM challenges and will outline a plan for future GEM meetings.
−
Jerry Goldstein (jgoldstein [at] swri.edu), Maria Spasojevic
 
−
(mariaspasojevic [at] stanford.edu).
 
  
−
== Substorm Expansion Onset: The First 10 Minutes ==
+
== Dayside FACs and Energy Deposition--Dayside FED ==
  
−
This is the 1st announcement of the focus group "Expansion Onset: The First
+
''Delores Knipp (delores.knipp [at] gmail.com); Stefan Eriksson (eriksson [a]t lasp.colorado.edu), Geoff Crowley (gcrowley [at] astraspace.net), Ramon Lopez (rlopez [at] uta.edu)''
−
10 Minutes" for the upcoming GEM workshop in Snowmass (June 21-26, 2009;  
 
−
http://www.cpe.vt.edu/gem/index.html).
 
  
−
We will have 4 breakout sessions on  
+
We would like to invite contributions to the Dayside FAC and Energy
−
June 25 (Thu) and 26(Fri) (for the current schedule of the overall workshop
+
Deposition (FED) focus group at the upcoming GEM workshop in Snowmass
−
see http://www.ece.vt.edu/GEM-2009).  
+
on June 21-25, 2010.  This new focus group is organizing to explain
 +
the relation between enhanced dayside Poynting flux and field-aligned
 +
currents, sources of field-aligned currents in the solar wind and
 +
magnetosphere and their impacts in the ionosphere-thermosphere system.
 +
The GF goals and other information are at:
  
−
Following are four topics and primary questions we will discuss this year.
+
http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_Dayside_FACs_and_Energy_Deposition
  
−
1) Onset Timing
+
The FED focus group will hold two sessions at the upcoming GEM
−
What is the time sequence of onset-related phenomena observed in space and
+
Workshop (June 20-25) in Snowmass, covering data, theory, modeling
−
on the ground, and what are the implications for substorm initiation?
+
aspects of the following topics:
  
−
2) M-I Coupling
+
- Dayside Poynting Flux, Joule Heating and Their Relation to Field Aligned Currents
−
How does aurora evolve around substorm onsets?  How are magnetospheric and
 
−
ionospheric onset signatures connected in terms of auroral precipitation and
 
−
currents, and what can we learn about substorm initiation from simultaneous
 
−
ground-satellite observations?
 
  
−
3) Onset Signature Propagation
+
- Particle Energy Deposition on the Dayside
−
How do onset-related signatures propagate in the magnetosphere?  How does
 
−
the uncertainty of propagation time affect our understanding of substorm
 
−
initiation?
 
  
−
4) Mapping
+
- Dissipation of Magnetospheric Energy in the Dayside Thermosphere
−
How does the presence and evolution of pre-onset and expansion-phase current
 
−
systems affect the link between auroral and plasma sheet locations and
 
−
processes?
 
  
−
Sessions will be scheduled based on responses to this announcement.  Those
+
- Thermospheric Density Enhancements and Traveling Atmo/Iono- spheric Disturbances
−
who are interested in participating in the discussion are encouraged to
 
−
email to Andrei Runov (arunov at igpp.ucla.edu), the session coordinator,
 
−
with c.c. to other conveners.
 
  
−
We look forward to seeing you there.
+
- Solar Wind Drivers for Extreme Dayside Poynting Flux Events
  
−
Vassilis Angelopoulos (vassilis [at] ucla.edu)
+
We will discuss the types of NSF GEM investigations to bring this
 +
forward toward a conclusion by 2012.
  
−
Kazuo Shiokawa (Shiokawa [at] stelab.nagoya-u.ac.jp)
+
The sessions will be held in a workshop (NOT AGU) style in which each
 +
speaker will be allotted time for a 3-4 slides, in order to ensure
 +
enough time for discussion.  At least one of the slides should deal
 +
with unresolved issues.  Speakers are encouraged to end their
 +
presentation with outstanding questions that could provide a basis for
 +
a session at next year's joint GEM-CEDAR meeting.
  
−
Andrei Runov (arunov [at] igpp.ucla.edu)
+
Both sessions have been tentatively scheduled on Monday Jun 21
 +
(See http://www.cpe.vt.edu/gem/index.html for the definitive schedule).
 +
If you have not already done so, please send the title(s) and
 +
session(s) of your contribution(s) to us at your earliest convenience
 +
at the email addresses listed below.
  
−
Shin Ohtani (ohtani [at] jhuapl.edu)
+
Delores Knipp (delores.knipp [at] gmail.com)
  
−
== Modes of Solar Wind-Magnetosphere Energy Transfer ==
+
Stefan Eriksson (eriksson [a]t lasp.colorado.edu)
  
−
== Geospace System ==
+
Geoff Crowley (gcrowley [at] astraspace.net)
  
−
'''Prospectus for a "Geospace System" Focus Group: Call for Participation'''
+
Ray Lopez (rlopez [at] uta.edu)
  
−
Friday, June 26, 10:30-12:15
+
== [Special breakout session] Comparative Planetary Magnetospheric Physics ==
  
−
From: Bill Lotko <wlotko [at] dartmouth.edu> and George Siscoe <siscoe [at] skynet.bu.edu>
+
Conveners: ''Larry Kepko (larry dot kepko at nasa dot gov) and Mike Liemohn (liemohn at umich dot edu)''
  
−
We would like to initiate a discussion among the magnetospheric and aeronomy communities (portions, at least) on the prospect of undertaking a global, system-dynamics study of the coupled solar wind-magnetosphere-ionosphere-thermosphere system, which we identify simply as the geospace system. The suggestion responds to two circumstances: first, 50 years of magnetospheric research have shown the geospace system to be interactively coupled in multiple ways from the solar wind to the thermosphere, and second, as GEM moves in its long-range program from the 'divide-and-conquer' stage to the more challenging synthesis stage, a focus group devoted to problems of the coupled system will leverage scientific progress in each GEM research area. The magnitude of the task to comprehend the global system in its coupled complexity is almost certainly too great for a single, scientist-centered research team and probably too great for the multiple teams of a single institution. Instead it would seem to require a sustained collaborative effort by experts of manifold specialties distributed among many institutions. It might even take the combined collaboration of the GEM community and a sizable portion of the CEDAR community.
+
We invite all interested GEM attendees to participate in a special "comparative planetary magnetospheric physics" breakout session at the upcoming GEM workshop on Tuesday from 3:30-5:00 pm. The focus will be on how to utilize the knowledge gained from examining similar physical processes in the different systems to further the goals of GEM. These processes include MI coupling, dayside interactions, solar wind energy coupling, etc., and span the entirety of the GEM focus areas. We do not anticipate formal presentations. Rather, this is an open forum for discussion. Please bring your thinking caps!
  
−
The priorities of such a focus group must be enlightened by community interest. To begin the conversation we can suggest among many possible directions several problems, each global in scope and of considerable current interest. We have asked some GEM participants to help initiate the discussion with a few slides on each problem. They include: 1) the dayside reconnection potential, its relationship to the polar cap potential, and the saturation of both at large IMF; 2) global resonance, periodicity of the magnetospheric response, and sawtooth phenomena; 3) ionospheric-magnetospheric plasma circulation, including ionospheric outflows, and its effects on plasmasheet and inner magnetospheric dynamics; and 4) prompt penetration electric fields and their relationship to the dayside ionospheric superfountain, storm enhanced density, and plasmaspheric plumes. While some aspects of these global problems can be treated as regional phenomena, differentiated by distinct physical processes, their dynamics seem to evolve as an integrated whole during extreme solar wind conditions. The geospace system thus behaves coherently across a broad spatiotemporal range, making it difficult to unravel its causal behavior by considering the response in terms of isolated elements or processes. Integration of global problems of this type into a system-dynamics picture spans the expertise of all five GEM research areas and several CEDAR working groups. We invite participation from the GEM community in deciding whether the time is right for this focus group, and, if so, how best to structure its direction.
+
GEM will also have two related plenary session tutorials, one by Margaret Kivelson, "Learning about Earth's plasma processes from studies of other magnetospheres," on Tuesday morning and a second by Jim Slavin, "Reconnection in planetary magnetic tails," on Thursday morning.

Latest revision as of 07:27, 4 June 2010

SilvertreeSView.jpg

GEM will be holding its annual summer workshop at the Snowmass Conference Center in Snowmass, Colorado during June 20-25, 2010. A special student program will be held on Sunday, June 20.

Logistical information and workshop agenda can be found at the GEM Workshop Web Site.

Listed below are the call for presentations by various GEM focus groups before the Workshop. (Note: In the e-mail addresses below the symbol @ is replaced by " [at] ".)

GGCM Metrics and Validation

Conveners: Aaron Ridley <ridley [at] umich.edu> and Masha Kuznetsova <Maria.M.Kuznetsova [at] nasa.gov>

A new Dst index metrics study is added to the GEM Modeling Challenge organized by the GGCM Metrics and Validation Focus Group. Community Coordinating Modeling Center (CCMC) is supporting the Challenge. To participate in the Challenge please submit your model results using the web interface prior to June 1st, 2010.

The results of the Challenge will be discussed at the GGCM Metrics and Validation Session at the GEM 2010 Summer Workshop. Joint publication by all participants is planned. For more details, go to the Challenge Web site: http://ccmc.gsfc.nasa.gov/support/GEM_metrics_08/

Please send questions, comments and suggestions to: Masha Kuznetsova (Maria.M.Kuznetsova[at]nasa.gov) and Aaron Ridley (ridley[at]umich.edu).

GGCM Modules and Methods

Conveners: Brian Sullivan (bsullivan [at]artemis.sr.unh.edu); John Dorelli (john.dorelli [at] nasa.gov)and Michael Shay (shay [at] udel.edu)

The GGCM Methods and Modules Focus Group will hold 2 sessions at the upcoming GEM Summer Workshop in Snowmass (June 20-25, 2010). The sessions will be at 10:30 and 1:30 on Wednesday.

The overarching goal of this focus group is to understand the physics of collisionless magnetic reconnection on magnetospheric length scales (100-1000 ion inertial lengths). We invite potential contributors to participate with short presentations on the following topics:

1. Scaling of reconnection with local and kinetic scale parameters in MHD, multifluid, and kinetic models.

2. Plasmoid instabilities in high Lundquist number current sheets

3. Dependence (or independence) of the dayside reconnection rate on solar wind parameters.

or any other topics of interest to the focus group. This is the final year of the GGCM Methods and Modules Focus Group. Looking forward, as this focus group comes to an end, a major goal for this year's sessions will be to agree on a way to present the most significant results of geophysical magnetic reconnection research to the greater GEM community and to identify a few outstanding questions to address as we plan for future focus groups centered on the multi-scale physics of reconnection in the magnetosphere. A more detailed description of the objectives of this focus group can be found at

http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG2._GGCM_Modules_and_Meth ods

Potential Contributors are encouraged to contact Brian Sullivan (brian.sullivan [at] unh.edu) with the title of their presentation.

Plasma Entry and Transport into and within the Magnetotail (PET)

Conveners: Antonius Otto <ao [at] how.gi.alaska.edu>,Jay R. Johnson <jrj [at] pppl.gov>, and Simon Wing <Simon.Wing [at] jhuapl.edu>

We would like to invite contributions to the PET focus group at the upcoming GEM workshop in Snowmass on June 21-25, 2010. The sessions will be held in a workshop (NOT AGU) style in which each speaker will be allotted time for a 2-3 slides, in order to ensure enough time for discussion. In order to encourage this, at least one of the slides should deal with unresolved issues. Speakers are encouraged to end the presentation with outstanding questions rather than a summary of what has/have been accomplished. It is expected that there will be three sessions: (1) ion outflow effects on the plasma sheet; (2) Constraints on plasma sheet entry and transport; and (3) GEM challenge, northward and southward IMF.

All three sessions have been tentatively scheduled on Monday Jun 21 (See http://www.cpe.vt.edu/gem/index.html for the definitive schedule). If you have not already done so, please send the title(s) and session(s) of your contribution(s) to us at your earliest convenience at the email addresses given above.

Physical Processes in the Cusps: Plasma Transport and Energization

Conveners: K.J. Trattner(trattner [at] mail.spasci.com), N. Omidi (omidi [at] solanasci.com) and D. Sibeck (david.g.sibeck [at] nasa.gov)

Presentations are solicited for the CUSP Focus Group to be held during the 2010 Summer GEM workshop in Snowmass Colorado. This is the last year of the Cusp Focus Group who's main objective is to utilize observations, modeling, and theory of the cusp and its role in particle acceleration and plasma transport. Based on the topics in earlier years and the discussions during the mini-workshop held during the 2009 Fall AGU, the Focus Group addresses the following topics:

1. Plasma transport into the cusp.

2. Energization of ions in diamagnetic cavities.

3. Origin of waves observed in the cusp and their role in particle scattering and acceleration.

4. Interaction of FTE's with the cusp.

5. The source region of energetic ions and electrons observed in the cusp.

6. Ionospheric signatures of such processes such as Poleward Moving Auroral Forms

It is the ultimate goal of the workshop to enhance our understanding of the cusp physics, its coupling to other parts of the system such as the bow shock, magnetopause and the ionosphere and the important role it plays in dayside transport and energization. Observational and theoretical contributions to this session are hereby solicited.

Those interested in these topics are invited to attend and contribute through showing a few slides and/or participation in the discussions. Information regarding hotel reservations and travel arrangements will be posted on the GEM website (http://www.cpe.vt.edu/gem) in the near future.

Those wishing to give a presentation or with questions regarding the workshop should contact the conveners: trattner [at] mail.spasci.com, omidi [at] solanasci.com or david.g.sibeck [at] nasa.gov.

Near Earth Magnetosphere: Plasma, Fields and Coupling

Conveners: Focus Group co-chairs: Sorin Zaharia <szaharia [at] lanl.gov>, Stan Sazykin <sazykin [at] rice.edu> and Benoit Lavraud <Benoit.Lavraud [at] cesr.fr>

The Near Earth Magnetosphere: Plasma, Fields and Coupling Focus Group will hold 3 sessions at the upcoming GEM Summer Workshop in Snowmass (June 20-25, 2010).

We invite potential contributors to participate with short presentations on the following topics:

1). Effect of plasma on storm-time electric and magnetic fields

2). Plasma sheet effect on ring current dynamics

3). Electric fields in the near-Earth magnetosphere (potential and inductive)

4). Coupling of physics-based inner magnetosphere with global magnetosphere models

or any other topics of interest to the focus group. It is the ultimate goal of the focus group to improve physical knowledge and modeling of the near-Earth (closer than 10 RE) magnetosphere and its coupling with the outer magnetosphere; a more detailed description of the focus group objectives can be found at

http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG8._Near_Earth_Magnetosphere:_plasma%2C_fields%2C_and_coupling

Potential contributors are encouraged to contact Sorin Zaharia (szaharia at lanl.gov) with the title of their presentation.

Space Radiation Climatology

Conveners: Paul O'Brien (paul.obrien [at] aero.org);Geoff Reeves (reeves [at] lanl.gov), Bob Weigel (rweigel-at-gmu.edu), and Reiner Friedel (friedel-at-lanl.gov)


It's almost time for the GEM Summer Workshop, joint with CEDAR. The Space Radiation Climatology Focus Group (FG9) will meet for three breakout sessions: two on Thursday June 24th: 1:30-3:30 and 3:30-5, and one on Friday, the 25th, 10:30-12:15. We will be discussing the past year's results in reanalysis, data assimilation, climatology models, and long-term data/analysis. One of our sessions (the first one) will be joint with the new radiation belt focus group.

We already have a number of exciting talks lined up, but there's plenty of room for more. We encourage interested parties to send talk ideas to Paul O'Brien, Bob Weigel, and/or Reiner Friedel (Geoff will not be able to attend this year). If you are presenting an FG9-related poster, please sign up for the **Thursday** Poster Session and advertise on the Wiki. http://www.virbo.org/GEM_FG9_2010

To view the FG9 email archive or to join the email group, go to http://groups.google.com/group/gem-2007-space-radiation-climatology-fg9

Diffuse Auroral Precipitation

Conveners: Richard Thorne <rmt [at] atmos.ucla.edu>

The Diffuse Aurora Focus Group plans to hold 4 breakout sessions at the 2010 GEM meeting in Snowmass this summer. Potential contributors are invited to contact the session chairs listed below with a title of their talk, and prepare a brief presentation for the workshop.

1. Relationship between auroral phenomenology and scattering mechanisms [Co-chairs, Binbin Ni (bbni[at}atmos.ucla.edu) and Robert Michell (rmichell[at]swri.edu)]

  • Monday June 21: 10:30-12:15:

2. Modulation of DA brightness by large-scale magnetospheric processes. [Co-chairs, Marilia Samara (marilia.samara[at]swri.org) and Jacob Bortnik (jbortnik[at]gmail.com )]

  • Monday June 21: 1:3-3:00:

3. Spatial and temporal extent and spatio-temporal occurrence of DA/scattering mechanisms [Co-chairs, Toshi Nishimura (toshi[at]atmos.ucla.edu) and Richard Thorne (rmt[at]atmos.ucla.edu)]

  • Monday June 21: 3:30-5:00:

4. Importance of the DA for Geospace at the system level. Plans for next year. [Chair, Richard Thorne (rmt[at]atmos.ucla.edu)]

  • Tuesday June 22: 10:30-12:15:

Plasmasphere-Magnetosphere Interactions (PMI)

Conveners: From: Jerry Goldstein <jgoldstein [at] swri.edu> and Maria Spasojevic <mariaspasojevic [at] stanford.edu>

The Plasmasphere-Magnetosphere Interactions (PMI) focus group will hold several sessions at the 2010 GEM Workshop, during 20-25 June 2010.

We invite short presentations (several slides) related to any of the PMI's broad topics:

+ Wave-Particle Interactions

+ Plume Dynamics & Recirculation

+ Plasma Density Structure & Evolution.

Specific topics of interest:

  • Dynamics of energetic particles
  • Wave theory and observations
  • Simulations or models of acceleration or loss
  • Morphology and dynamics of cold plasma density
  • Global circulation of plasmaspheric plumes
  • Dayside distribution of cold plasma ions
  • Fine scale plasma structure and flow turbulence.
  • Plume plasma and magnetospheric reconnection.

or any other topic you feel would be of interest to the PMI focus group.

If you would like to present, please e-mail your tentative title/topic to:

JGoldstein [at] swri.edu.

Substorm Expansion Onset: The First 10 Minutes

Conveners: Vassilis Angelopoulos (Vassilis[at] ucla.edu); Kazuo Shiokawa (Shiokawa [at] stelab.nagoya-u.ac.jp) ; Andrei Runov (arunov [at] igpp.ucla.edu) and Shin Ohtani (Ohtani [at] jhuapl.edu)

Our focus group, "Substorm Expansion Onset: The First 10 Minutes", will have 4 sessions at the upcoming GEM Workshop in Snowmass (June 20-25, 2010). They are scheduled on June 24 (Thu) and 25 (Fri).

We have four topical areas identified, which are:

1. Onset timing: observations/theory/simulations (Angelopoulos)

2. How do onset signatures propagate to near Earth and to the ground? (Runov)

3. Ground-space mapping of physical processes before/during/after onset (Ohtani)

4. Substorm processes near transition between stretched and dipole field lines (Shiokawa)

We would like to invite you to participate, and if you have any request or question, please contact the person of the topical area of your interest, whose name is in the parentheses for each topic.

The description of our focus group is posted at: http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG12._Substorm_Expansion_Onset:_The_First_10_Minutes

Modes of Solar Wind-Magnetosphere Energy Transfer

Convener: Larry Kepko (larry.kepko [at] unh.edu) and Bob McPherron (rmcpherron [at] igpp.ucla.edu)


The Modes of Magnetospheric Response focus group will hold three sessions at the upcoming GEM Workshop (June 20-25) in Snowmass, CO, covering the following topics:

1. Dayside observations during sawtooth events, the role of polar cap saturation, and implications for the magnetospheric response. Specifically, are particle injections on the dayside dispersionless or dispersive? Can sawtooth observations be understood as substorms that penetrate deep into the inner magnetosphere, or do sawtooth represent a fundamentally different state of the magnetosphere? We particularly encourage participants to bring data that addresses the issue of dayside injection and/or dipolarization.

2. Non-linear coupling and the role of pre-conditioning in determining the response mode. Example topics and questions include: Systematic errors in activity indices; Seasonal effects on coupling functions; mass-loading effects on convection; The storm/substorm/SMC relationship.

3. Magnetospheric response and solar wind energy transfer during the extreme solar minimum.

This focus group has as its aim the improvement of knowledge of the physical mechanisms that provide different dynamical modes of response of the magnetotail to the solar wind. These include substorms, steady magnetospheric convection, sawtooth injection events, pseudo breakups, and poleward boundary intensifications. A complete description of the FG and its goals can be found at http://bit.ly/beGmTF

Schedule Change

To minimize overlap with the "First 10 Minutes" focus group the "Modes of Magnetospheric Response" has been moved to the following dates and times:

Wednesday 6/23, 10:30 am - 12:15 pm, and 3:30-5:00 pm Thursday 6/24, 10:30 am - 12:15 pm

Please contact us if you are interested in presenting in one of the sessions [Larry Kepko (larry.kepko [at] unh.edu) and Bob McPherron (rmcpherron [at] igpp.ucla.edu)]:

1. Dayside observations during sawtooth events, the role of polar cap saturation, and implications for the magnetospheric response. Specifically, are particle injections on the dayside dispersionless or dispersive? Can sawtooth observations be understood as substorms that penetrate deep into the inner magnetosphere, or do sawtooth represent a fundamentally different state of the magnetosphere? We particularly encourage participants to bring data that addresses the issue of dayside injection and/or dipolarization.

2. Non-linear coupling and the role of pre-conditioning in determining the response mode. Example topics and questions include: Systematic errors in activity indices; Seasonal effects on coupling functions; mass-loading effects on convection; The storm/substorm/SMC relationship.

3. Magnetospheric response, state of the magnetosphere, and solar wind energy transfer during the extreme solar minimum.

Magnetosheath Studies

Convener: Steven Petrinec (steve.petrinec [at] gmail.com) and Katariina Nykyri (nykyrik [at] erau.edu)

Magnetosheath focus group will hold sessions at the next GEM workshop on 21-25th of June, 2010 in Snowmass Village Colorado. We invite short presentations related to any of the focus group topics.

The Primary Objectives and Expected Activities of the FG:

1. To produce more comprehensive models of large scale magnetosheath flow and field patterns, and geometry of the magnetosheath region

2. To improve understanding of magnetosheath plasma instabilities and wave particle interactions: Spatial distribution and characteristics

3. To develop a better understanding of the effects on magnetospheric dynamics due to processes occurring in the magnetosheath and due to characteristic magnetosheath properties.

The focus group proposal with specific science questions can be found at http://gem.epss.ucla.edu/mediawiki/pdf/GEM_FG_MSheath_proposal.pdf.

We especially encourage data-analysts utilizing in-situ spacecraft measurements from Themis and Cluster missions, theoretical modelers, global and local modelers to participate in this workshop and present your findings. We also encourage presentations of studies of magnetosheaths around other solar system bodies, as they relate to the terrestrial magnetosheath.

See GEM website for further details: http://www.cpe.vt.edu/gem/

Radiation-Belt and Waves Modeling (RBWM)

Conveners: Yuri Shprits, UCLA (yshprits [at] atmos.ucla.edu); Scot Elkington, LASP (Scot.Elkington [at] lasp.colorado.edu); Jacob Bortnik, UCLA (jbortnik [at] atmos.ucla.edu);Craig Kletzing, U. Iowa (craig-kletzing [at] uiowa.edu)

The Radiation-Belt and Waves Modeling (RBWM) focus group will hold several sessions at the 2010 GEM Workshop, during 20-25 June 2010.

We invite short presentations (several slides) related to any of RBWM's broad topics:

- Wave excitation, propagation and distribution (ULF, VLF, etc.)

- Dynamical modeling of the radiation belts (acceleration, loss, etc.)

- Wave-particle interactions (linear, nonlinear, non-resonant)

The RBWM focus group kicks off this year, and aims to achieve a first- principles understanding of the coupled dynamic variability of the radiation-belts, and the wave environment that controls it. A few sample questions that are of particular interest to this focus group are:

- what are the physical processes responsible for wave excitation?

- what are the spatiotemporal distributions of various plasma waves and what are their relative roles in producing acceleration/loss?

- what are the roles of linear, nonlinear, and non-diffusive wave- particle interactions in RB dynamics?

- what are the quantitative effects of transport via interactions with ULF waves?

- what is the role of the seed population in radiation belt dynamics?

- why do some storms produce flux increases, decreases, or no variation?

If you would like to learn more about this focus group, or submit a presentation, please use the following resources:

Wiki page http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_Radiation_Belts_and_Wave_Modeling

We look forward to your participation

Radiation Belts and Wave Modeling (RBWM) session description:

We will have 6 sessions this year: You can submit the title of your presentation online by following the link below to reserve a time slot during each individual session. We invite potential contributions and encourage to limit presentations to approximately 5 min.

http://spreadsheets.google.com/viewform?hl=en&formkey=dEhELVhvSXg5VS1HQmd3dzhCY3BaMGc6MQ


Tues PM 1: RBWM 1 -- Dynamical modeling of the radiation belts (Model development, verification, validation) (Scot Elkington and Yuri Shprits)

During this session we will discuss the development of new and improvement of existing models of particle transport, scattering, and acceleration in the radiation belts. We will discuss future plans for model inter-comparison and for comparison of models with observations.


Tues PM 2: RBWM 2 -- Dynamical modeling of the radiation belts (Preparing Radiation Belt models for RBSP data) (Scot Elkington and Yuri Shprits)

During this session we will concentrate on comparing model results with observations from RBSP and other missions such as ORBITALS, ERG, and BARREL.


Wed AM 2: RBWM 3 -- Wave-particle interactions (Particle scattering and transport) (Scot Elkington and Yuri Shprits)

We will discuss quasi-liner and non-liner pitch-angle, energy, and radial scattering and will discuss other potentially important acceleration and loss mechanisms operating in the radiation belts.


Wed PM 1: RBWM 4 -- Wave excitation, propagation, and distribution (ULF) (Jacob Bortnik and Craig Kletzing)

We will discuss excitation, propagation and distribution of ULF waves. We would like to invite contributions concerning modeling and observations.


Wed PM 2: RBWM 5 -- Wave excitation, propagation and distribution (VLF) (Jacob Bortnik and Craig Kletzing)

We will discuss excitation, propagation and distribution of VLF waves. We would like to invite contributions concerning modeling and observations.


Thur AM 2: RBWM 6 -- Planning session (Jacob Bortnik, Scot Elkington, Craig Kletzing, and Yuri Shprits)

We will discuss future plans of model development, validation, and verification. We will discuss potential future GEM challenges and will outline a plan for future GEM meetings.

Dayside FACs and Energy Deposition--Dayside FED

Delores Knipp (delores.knipp [at] gmail.com); Stefan Eriksson (eriksson [a]t lasp.colorado.edu), Geoff Crowley (gcrowley [at] astraspace.net), Ramon Lopez (rlopez [at] uta.edu)

We would like to invite contributions to the Dayside FAC and Energy Deposition (FED) focus group at the upcoming GEM workshop in Snowmass on June 21-25, 2010. This new focus group is organizing to explain the relation between enhanced dayside Poynting flux and field-aligned currents, sources of field-aligned currents in the solar wind and magnetosphere and their impacts in the ionosphere-thermosphere system. The GF goals and other information are at:

http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_Dayside_FACs_and_Energy_Deposition

The FED focus group will hold two sessions at the upcoming GEM Workshop (June 20-25) in Snowmass, covering data, theory, modeling aspects of the following topics:

- Dayside Poynting Flux, Joule Heating and Their Relation to Field Aligned Currents

- Particle Energy Deposition on the Dayside

- Dissipation of Magnetospheric Energy in the Dayside Thermosphere

- Thermospheric Density Enhancements and Traveling Atmo/Iono- spheric Disturbances

- Solar Wind Drivers for Extreme Dayside Poynting Flux Events

We will discuss the types of NSF GEM investigations to bring this forward toward a conclusion by 2012.

The sessions will be held in a workshop (NOT AGU) style in which each speaker will be allotted time for a 3-4 slides, in order to ensure enough time for discussion. At least one of the slides should deal with unresolved issues. Speakers are encouraged to end their presentation with outstanding questions that could provide a basis for a session at next year's joint GEM-CEDAR meeting.

Both sessions have been tentatively scheduled on Monday Jun 21 (See http://www.cpe.vt.edu/gem/index.html for the definitive schedule). If you have not already done so, please send the title(s) and session(s) of your contribution(s) to us at your earliest convenience at the email addresses listed below.

Delores Knipp (delores.knipp [at] gmail.com)

Stefan Eriksson (eriksson [a]t lasp.colorado.edu)

Geoff Crowley (gcrowley [at] astraspace.net)

Ray Lopez (rlopez [at] uta.edu)

[Special breakout session] Comparative Planetary Magnetospheric Physics

Conveners: Larry Kepko (larry dot kepko at nasa dot gov) and Mike Liemohn (liemohn at umich dot edu)

We invite all interested GEM attendees to participate in a special "comparative planetary magnetospheric physics" breakout session at the upcoming GEM workshop on Tuesday from 3:30-5:00 pm. The focus will be on how to utilize the knowledge gained from examining similar physical processes in the different systems to further the goals of GEM. These processes include MI coupling, dayside interactions, solar wind energy coupling, etc., and span the entirety of the GEM focus areas. We do not anticipate formal presentations. Rather, this is an open forum for discussion. Please bring your thinking caps!

GEM will also have two related plenary session tutorials, one by Margaret Kivelson, "Learning about Earth's plasma processes from studies of other magnetospheres," on Tuesday morning and a second by Jim Slavin, "Reconnection in planetary magnetic tails," on Thursday morning.

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