*************************** ** THE GEM MESSENGER ** *************************** Volume 24, Number 8 April 9, 2014 ---------------------------------------------------------------------- Call for participation in the Geospace Systems Science Focus Group ---------------------------------------------------------------------- From: Joe Borovsky For the new "Geospace Systems Science" Focus group, two working sessions will be held at the GEM Summer Workshop in Portsmouth, VA. This is a call for research and participation in those two sessions. Session 1: "Timescales, Time Lags, and Feedback Loops in the M-I System". The first purpose of this session is to identify, catalog, and quantify the known timescales and time lags in the M-I system associated with reactions to the solar wind, with plasma transport, with morphological evolution, with the evolution of plasma populations and radiation belts, with ionospheric outflows, etc. The second purpose is to identify and catalog the feedback loops in the driven M- I system. Put on your thinking caps and join this discussion. Session 2: "Long-Running Measurements of the State of the System: What Can Be Done?" We rely chiefly on the geomagnetic indices to characterize the reaction of the magnetosphere to solar-wind driving. Are there other measures of the system that can and should be used? Can we create long-running, continuous "indices" that characterize the state of the electron radiation belt, the rate of ion outflow from the ionosphere, the stretching of the magnetotail, the polar-cap size, plasma-wave intensities, the global TEC, NOX densities, etc. We are asking participants to suggest and defend ideas for important measurements of the system and to say how feasible it would be to make an index of that measurement. Discussion without slides is optimal. Please contact the conveners about ideas. A third GSS planning session will also be held, plus two joint sessions to be announced separately. Joe Borovsky (jborovsky@spacescience.org) Bill Lotko (William.Lotko@dartmouth.edu) Vadim Uritsky (vadim.uritsky@nasa.gov) Juan Alejandro Valdivia (alejo@macul.ciencias.uchile.cl) +-------------------------------------------------------------------+ | To broadcast announcements to the GEM community, please contact | | Peter Chi, GEM Communications Coordinator, at: | | | | | | Please submit your announcements in plain text or Word document. | | | | To subscribe the GEM Messenger, 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 | | | | GEM Messenger is also posted online via newsfeed at | | http://heliophysics.blogspot.com and | | http://www.facebook.com/heliophysics | | | | Back issues are available at: | | http://www-ssc.igpp.ucla.edu/gemwiki/messenger/ | | | | URL of GEM Home Page: http://aten.igpp.ucla.edu/gemwiki | | Workshop Information: http://www.cpe.vt.edu/gem/index.html | +-------------------------------------------------------------------+