*************************** ** THE GEM MESSENGER ** *************************** Volume 14, Number 23 June 1, 2004 ---------------------------------------------- 2nd Call for Participation: GEM Global Interactions Campaign ---------------------------------------------- From: David Sibeck This is a call for participation in the new "Global Interactions" campaign whose first meetings will be held at the GEM Workshop in Snowmass this summer (see http://gem.rice.edu/~gem/gem2004). Campaign Coordinators are David Sibeck (David.G.Sibeck@nasa.gov) and Tai Phan (phan@ssl.berkeley.edu). Speakers and participants in each of the sessions described below will present brief talks concerning their research, so that there can be time to come to an agreement on the (multiple) focii of this wide-ranging campaign. Tuesday June 22, 2004 will be devoted to questions concerning processes occurring on the dayside, namely reconnection dynamics, the cusp, and the high and low-latitude boundary layers. Following an invited talk by George Siscoe on "The Cusp and Its Role in Magnetospheric Dynamics", the session on Tuesday morning will address local (small to mesoscale) processes occurring at the magnetopause and cusp. The chairman for this session will be Nick Omidi (omidi@scibernet.com). Topics include: the characteristics and location of reconnection, flux transfer events, plasma flow vortices, the Kelvin-Helmholtz instability, particle entry and energization in the cusp. The first part of Tuesday afternoon will be devoted to the Cusp and boundary layers. The chairman for this session will be Jean Berchem (jberchem@igpp.ucla.edu). Topics focus on both observational and simulation studies of the locations and characteristics of the cusp and boundary layers as a function of solar wind conditions. Karl-Heinz Trattner (trattner@mail.spasci.com) will chair a session concerning the Coupling between the Magnetopause, Magnetosheath, and Bow shock during the latter half of Tuesday afternoon. Topics include determining the origin of ions in the boundary layers and cusp and the impact of hot flow anomalies and other features generated in the foreshock on the magnetosphere. Wednesday June 23, 2004 will be devoted to questions concerning processes occurring within the nightside magnetosphere, with an emphasis on how solar wind parameters control the entry, motion, and characteristics of plasma in the magnetotail. Organizers for the sessions on Wednesday are Antonius Otto (ao@gi.alaska.edu) and Terry Onsager (terry.onsager@noaa.gov). Following an invited talk by Joe Borovsky entitled "Dependence of the Plasma Sheet on the Solar Wind," the session on Tuesday morning will address plasma sheet properties. The session will focus on observations relating to the plasma character of the plasma sheet and their dependencies on magnetospheric/solar wind conditions. This includes in particular observations on the ion composition and distribution (for instance of oxygen) as an indicator of possible solar wind or ionospheric origin. The first session after lunch on Wednesday will concern Source and Transport Mechanisms. The session will focus on models and observations of plasma transport to the plasma sheet. Which boundary processes are important for plasma entry? What are the paths of plasma from the different boundary regions to the plasma sheet? Solar wind as well as ionospheric sources will be considered. One focus will be the structure and formation of the plasma sheet in global models. Aspects here should include the heating or acceleration of the plasma sheet material. In the late afternoon, a joint session will coordinate future activities. The session will outline the planning and issues needed for a plasma sheet modeling challenge and discuss coordination of efforts with the "Reconnection dynamics, cusp, and LLBL" working group. +-------------------------------------------------------------------------+ |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 | +-------------------------------------------------------------------------+