*************************** ** THE GEM MESSENGER ** *************************** Table of Contents ============================================================================ At GEM 2006 Workshop, Snowmass, CO, June 25-30, 2006 1. Call for Participation: Inner Magnetosphere/Storms Campaign Breakout Sessions for All Working Groups 2. MI Coupling Campaign -- Global-Scale MI Coupling Working Group ============================================================================ Volume 16, Number 8 April 21, 2006 ---------------------------------------------------------------------------- 1. Call for Participation: Inner Magnetosphere/Storms Campaign Breakout Sessions for All Working Groups ---------------------------------------------------------------------------- From: Mike Liemohn This is the last year for the Inner Magnetosphere/Storms (IM/S) Campaign at the GEM Workshop. As a final salute, the IM/S Campaign will hold several breakout sessions, listed below. Note that all sessions are convened jointly between all of the IM/S working groups, and some are convened jointly with other campaigns. The time schedule for these sessions is posted at the workshop webpage: http://gem.rice.edu/~gem/gem2006/index.html Descriptions of each session will be given in a future GEM Messenger announcement. If you wish to know more about the session, then please contact the conveners directly. See you in Snowmass! IM/S Working Groups: WG1: Plasmasphere and Ring Current WG chairs: Dennis Gallagher and Margaret Chen WG2: Radiation Belts WG chairs: Richard Thorne and Reiner Friedel WG3: ULF Waves WG chairs: Brian Fraser and Mark Moldwin (1) Inner magnetospheric M-I Coupling (joint with MIC campaign) Conveners: Dennis Gallagher and Jeff Hughes (2) Inner-outer magnetosphere coupling (joint with GI campaign) Conveners: Margaret Chen and a Dave Sibeck (3) ULF Wave Index for inner magnetospheric usage Conveners: Brian Fraser and TBD (4) Plasmaspheric density from ULF wave observations Conveners: Mark Moldwin and Dennis Gallagher (5) Discussion on radiation belt sources Conveners: Richard Thorne and Brian Fraser (6) Discussion on radiation belt losses Conveners: Geoff Reeves and Paul O'Brien (7) IM/S Challenge Results and GGCM coupling issues (joint with GGCM) Conveners: Mike Liemohn and Jimmy Raeder (8) Diagnosis and prognosis of the IM/S Campaign Conveners: Mike Liemohn and the WG chairs ---------------------------------------------------------------------------- 2. MI Coupling Campaign -- Global-Scale MI Coupling Working Group ---------------------------------------------------------------------------- From: David Murr Dayside Global Ionospheric Electrodynamics under Varying Solar Illumination With the recent addition of observations from the Iridium constellation of satellites, we now have the capability to make semi-instantaneous global observations of the ionospheric convection (SuperDARN, DSMP, and ground-based magnetometers), field-aligned currents (Iridium), and height- integrated conductances (satellite-based imaging). These combined observations allow us to "challenge" the current set of global MHD codes in ways not possible before now. At the request of the global modelers present at our Fall AGU MiniGEM session, we have selected three intervals with maximal observational coverage during similarly modest (and steady) IMF driving conditions (IMF Bz~By~ -4 nT) when the models should perform their best. The three intervals differ in solar illumination: northern solstice-like, equinox-like, and southern solstice-like. Initial test runs at the Community Coordinated Modeling Center have yielded intriguing results and differences between the global MHD codes in their repository. We hope that this session will establish a baseline for the state of the art in how well global MHD simulations represent high-latitude ionospheric electrodynamics and be a catalyst for discussions concerning the physics governing these electrodynamics under differing solar illumination conditions. We solicit contributions from both global MHD and empirical modelers as well as observational groups that can contribute to furthering constraining our description of the "real" state of the ionosphere during these events. Please visit http://engineering.dartmouth.edu/~dmurr/GEM/ for more details. Please contact David Murr (david.murr@dartmouth.edu) if you would like to participate or if you have and questions or comments. Event Intervals 1. August 04, 2001 12:00-19:00 UT 2. August 31, 2001 00:00-07:00 UT 3. November 18, 2002 00:00-21:00 UT +-------------------------------------------------------------------------+ |To subscribe GEM Messengers, send an e-mail to | | with the following command in the body of your e-mail message: | | subscribe gem | |To remove yourself from the mailing list, the command is: | | unsubscribe gem | | | |To broadcast a message to the GEM community, please contact Peter Chi at | | | |Please use plain text as the format of your submission. | | | |URL of GEM Home Page: http://www-ssc.igpp.ucla.edu/gem/Welcome.html | |Workshop Information: http://gem.rice.edu/~gem | +-------------------------------------------------------------------------+