*************************** ** THE GEM MESSENGER ** *************************** Volume 2, Number 15 November 13, 1992 ------------------------------------------------------------- GEM Workshop, Sunday, Dec.6, 1992, Holiday Inn Golden Gateway ------------------------------------------------------------- WG1: RECONNECTION ELECTRIC FIELD AND MAGNETOPAUSE BOUNDARY NORMAL MAGNETIC FIELD Time: 1:00 - 3:15 P.M. Room: California/Washington Co-chairs: Larry Lyons and Odile de la Beaujardiere Primary goals: Evaluate dayside reconnection electric field and normal component of magnetic field at the magnetopause. Approach: Evaluate ionospheric plasma transport in the vicinity of the open-closed field line boundary and dayside boundary layers and the large-scale transport over the polar caps. Dec. 6 discussion will be divided into three topics as follows: I. Coordination between modeling and data campaigns [~1 hour] A. Introduction by Lyons 1. Where does separatrix map to in the ionosphere? a. Generally it is assumed to be near boundary between low- latitude boundary layer (LLBL) and cusp/mantle, since LLBL is believed to be on closed field lines. b. New model results suggest LLBL is on open field lines and that separatrix is at equatorward boundary of LLBL (which would make separatrix identification in ionosphere easier than we had believed, since it would not be necessary to distinguish the cusp from the LLBL). 2. Straw man proposal for using models to predict polar cap regions and convection patterns for comparison with campaign observations. B. Other suggestions and discussion. II. Presentations of material related to data campaigns that is not included in AGU talks, such as [~1 hour]: A. Further information on AGU material B. Problems or questions (related or not to AGU material) C. Situations where you would like data or cooperation from others III. Future campaign coordination (e.g., March 1993; 9-10 Nov. 1993; 11-14 Jan., 1994) [~15 minutes] CONTRIBUTIONS ARE ENCOURAGED. PLEASE CONTACT LARRY OR ODILE BY NOV. 30 FOR SCHEDULING. *************************************************************************** WG2: PARTICLE ENTRY, STRUCTURE AND TRANSPORT Time: 3:45 - 6:00 P.M. Room: California/Washington Chair: Pat Newell Our Working Group's focus has been on lively debate of core topics, and the discussion should include some of this. The thrust of this brief gathering however has to be deciding how these topics should be addressed at the next full GEM meeting. General comments about the direction the group should take are also welcome. Tentative list of Topics for our Group to Tackle: -- The growing evidence that dayside transients are directly driven by sheath/IMF changes -- The cusp as a permanent merging site -- Dayside convection, transients, and magnetosheath changes Those who wish to expand the list of topics under consideration are especially welcome. **************************************************************************** WG3: CURRENT SYSTEMS AND MAPPINGS Time: 1:00 - 3:15 P.M. Room: Nevada/Oregon Co-chairs: Bob Lysak and Chris Russell Anyone wishing to make a presentation on any topic within the broad purview of the working group is invited to do so. To structure the discussion we have scheduled 2 presentations: a) K.-H. Glassmeier: Traveling convection vortices; b) C. T. Russell: Effect of ring current on response of the magnetosphere to interplanetary shocks. Those with observations, numerical models and theoretical treatments pertaining to these two topics are especially urged to attend. Scheduling will be done at the beginning of the workshop but pre-AGU contact with either of the conveners is welcome. **************************************************************************** WG5: GGCM WORKING GROUP Time: 3:45 - 6:00 P.M. Room: Nevada/Oregon Coordinators: Joel Fedder and George Siscoe This first meeting of the GGCM-WG will be partly an organizational meeting and partly a working meeting. Agenda topics include the following. Agenda Topics GGCM-WG Goals and Operating Procedures: A strawman set of goals and procedures will be presented for additions, deletions, and prioritization. GGCM Types: Modular, Kinetic, and MHD. There will be discussions by representatives from groups doing all three types of GGCM development. GEM-GGCM Interfaces: How can GEM optimally help bring about community GGCMs? GEM Milestone Projects: What nearer term, intermediate goals can we achieve? Plans for the Spring AGU Meeting. Plans for the GEM Summer Workshop. Review tasks and schedules. Adjourn ***************************************************************************** *Please note the changes in room assignment from the last GEM Messenger. ------------------------------------------ Air Force Operational Space Weather Models ------------------------------------------ by Nelson Maynard The operational modeling efforts to develop a system of space weather models covering from the solar wind through the magnetosphere and into the ionosphere is back on track. These models will be used in the Air Force Space Forecast Center to specify and predict the space environment's effects on space systems. The funding difficulties of last summer are behind us and at present the FY93 funding is tight but adequate. Funding continues to slowly decline for basic research in support of future operational models within the Air Force. -------------------------- DMSP Data from November 92 -------------------------- by Fred Rich DMSP data will not be available to support the Nov 92 GEM campaign. Due to a change in how DMSP data are archived, DMSP data will not be available from 1 Oct 92 to approximately April 93. Prior to Oct 92, DMSP data was archived by the Air Force. In the future, NOAA/National Geophysical Data Center, Boulder, CO will archive and distributes all DMSP data including the images in digital format. While it was planned not to happen, there has developed a gap between when the AF stopped and NOAA begins. +----------------------------------------------------------------------+ |To add name to the mailing list, send a mail to : guan at igpp.ucla.edu | |For message to whole GEM mailing list, send to: gem at igpp.ucla.edu | |For message to a specific working group, send to: | | gem_field at igpp.ucla.edu (WG1); gem_boundary at igpp.ucla.edu (WG2); | | gem_current at igpp.ucla.edu (WG3); gem_data at igpp.ucla.edu (WG4) | |GEM Bulletin Board: telnet terra.igpp.ucla.edu; user name: gem or GEM | | contents: GEM Messengers | |Next Meeting: Holiday Inn Golden gateway, S.F., 1-6pm, Dec. 6, 1992 | |Please update your e-mail address. | |CAUTION: Do not send messages to gem at igpp.ucla.edu unless you want | | your message to go to everyone in the GEM mailing list! | +----------------------------------------------------------------------+