*************************** ** THE GEM MESSENGER ** *************************** Volume 14, Number 16 May 11, 2004 ---------------------------------------------------------------------- GGCM/MIC-WG1 Joint Session: Can Definitive Predictions of Ion Outflow be Made? ---------------------------------------------------------------------- From: Aaron Ridley Wednesday Afternoon Aaron Ridley and Bill Peterson co-chairs The MIC Working Group 1 sessions to be held on Thursday and Friday after this session, will demonstrate that there are substantial ionospheric outflows, particularly during disturbed times, that these flows possibly provide a significant mass loading to the inner magnetosphere and that there are potential global effects such as delaying/modifying onset of reconnection and the corresponding convection pattern within the magnetosphere. Currently, a testable self-consistent outflow model is beyond our reach because of limitations in the data and codes. It is the ultimate goal of the GGCM to have such a testable model in place. The models should be able to provide information about the spatial and temporal evolution of outflow. Data must be available to validate them. The questions we'd like to address in this session are: (1) Can ionospheric outflows be (reliably) specified or simulated in a global magnetospheric model? (2) How can we use current and future satellite and ground-based data to constrain the outflow within the simulations? As a result of a discussion at a past GEM meeting, we have identified an extended interval of steady IMF where high quality, mass resolved, observations of escaping plasma are available from Akebono, FAST, and Polar to help focus the discussion. The interval is from 14:30 on 3/18/97 to 02:00 on 3/19/97. We will have a short (less than 5 power-point pages) overview of these observations and an overview of a model run of the interval from the CCCM. Full presentations of these and other relevant observations will be made in the Thursday PM poster session. The majority of the time will be spent addressing the above questions and determining what the next steps should be in realizing the ultimate goal of creating and utilizing a self-consistent outflow model within the GGCM. We invite modelers and data providers to join the discussion. +-------------------------------------------------------------------------+ |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 | +-------------------------------------------------------------------------+