*************************** ** THE GEM MESSENGER ** *************************** Volume 14, Number 20 May 26, 2004 ---------------------------------------------------- 2nd Call for Participation: GEM Inner Magnetosphere/Storms Assessment Challenge ---------------------------------------------------- From: Mike Liemohn This is a call for participation in the GEM IMS Assessment Challenge. The purpose of this challenge is two-fold: (1) assess the accuracy of the present state of inner magnetospheric models, and (2) to develop a consensus understanding of the physics of the inner magnetosphere. A more complete description of the challenge can be found at http://spacibm.rice.edu/~gem/gem2004/ims_challenge.html. Those interested in presenting in one or more of the sessions described below are invited to contact either of the session chairs. The challenge will be carried out over three sessions: Monday PM GEM IMS Challenge: Data (WG1 & WG2) Chairs: Mark Moldwin (mmoldwin@ucla.edu) Dennis Gallagher (dennis.l.gallagher@nasa.gov) This session is devoted to presentations and discussion regarding the quantitative and qualitative observations that are available to quantify the changing state of the inner magnetosphere during the challenge storms of April 22, 2001 and October 21-23, 2001. Modelers may be expected to provide predictive descriptions of densities, fluxes, flows, temperatures, and other properties of the ring current, plasmasphere, and ionosphere during these storms. Come help us assess how and where modeling results can be tested. Monday PM+ GEM IMS Challenge: Modeling (WG1 & WG2) Chairs: Margaret Chen (Margaret.W.Chen@aero.org) Jerry Goldstein (Jerry.Goldstein.Adv00@alum.dartmouth.org) Modelers are invited to present their analysis for the GEM IMS challenge storms. Special emphasis will be given to identifying those quantitative and qualitative results that can be compared to observations of the ring current, plasmasphere, and ionosphere. Presenters and participants are also invited to weight in on the topic of group-wide metrics that can be used to quantify data-model comparisons. The objective is focused on the IMS campaign goal to advance inner magnetospheric modeling, where we also quantify our advances and continuing weaknesses. Tuesday PM Ideas for the GEM Challenge (WG2) Chairs: Reiner Friedel (friedel@lanl.gov) Richard Thorne (rmt@atmos.ucla.edu) This session is for the Radiation Belts working group to discuss ideas regarding the implementation of a relativistic electron IMS Assessment Challenge. Presentations are welcome, but much of the session will be an open discussion to formulate a proposed plan to present to the entire IMS Campaign on Wednesday afternoon. Wednesday AM+ GEM IMS Challenge: Assessment (WG1, WG2, & WG3) Chairs: Mike Liemohn (liemohn@engin.umich.edu) Dennis Gallagher (dennis.l.gallagher@nasa.gov) In this session we will seek to evaluate what has been learned in our previous sessions. Very brief presentations recommending approaches to group-metrics for data-model comparisons and those proposing an assessment of the state of inner magnetospheric modeling would be appropriate. Most of the session will be devoted to an open discussion as well. The results of this year's challenge will likely influence challenges in other working groups, so broad participation is encouraged. Wednesday PM GEM IMS Challenge: Radiation Belts (WG1, WG2, & WG3) Chairs: Reiner Friedel (friedel@lanl.gov) Richard Thorne (rmt@atmos.ucla.edu) The entire campaign will hear the WG2 proposal for implementing a radiation belt component to the IMS Assessment Challenge. It is expected that a consensus plan for this phase of the challenge will be formulated during this open discussion session. +-------------------------------------------------------------------------+ |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 | +-------------------------------------------------------------------------+