Table of Contents ============================================================================ 1. Solicitation of Contribution to the Solar wind plasma Plasma Entry and Tranport into and within the Magnetotail (PET) Focus Group at GEM Workshop on June 17-22, 2007 2. Future of Community Modeling Session at GEM 2007 Workshop ============================================================================ *************************** ** THE GEM MESSENGER ** *************************** Volume 17, Number 10 May 12, 2007 ---------------------------------------------------------------------------- 1. Solicitation of Contribution to the Solar wind plasma Plasma Entry and Tranport into and within the Magnetotail (PET) Focus Group at GEM Workshop on June 17-22, 2007 ---------------------------------------------------------------------------- From: Antonius Otto Jay R. Johnson Simon Wing With this letter, we would like to invite contributions to the PET focus group at the upcoming GEM workshop in Zermatt Resort, UT on June 17-22, 2007. The sessions will be held in a workshop-style in which each speaker will be allotted time for a 2-3 slides, in order to ensure enough time for discussion. Speakers are encouraged to focus their comments on unresolved issues related to a specific scientific question listed below. It is expected that there will be two sessions: (1) solar wind entry and (2) tail transport (see http://spacibm.rice.edu/~gem/gem2007). The following lists the science questions of interest in these two sessions. The core topic of these sessions is the question whether local or specific entropy is a good discriminator of different plasma entry and transport processes into the magnetotail. 1. What are the solar wind entry mechanisms and their predictions on the plasma sheet entropy during northward IMF? 2. What are the observations of plasma properties such as entropy for the plasma entry? 3. Are there dawn-dusk asymmetries in the entropy and plasma properties and theoretical explanations? 4. Can the observations be explained by a single process or are multiple processes required? 5. What do the global models predict for the local and specific entropy change for plasma entry? 6. What is the transport path of the newly captured magnetosheath plasma in the plasma sheet? Is there an influence on properties of the newly captured plasma such as momentum or entropy? 7. How do ion and electron temperatures change during plasma entry? Please send the title(s) of your contribution(s) to us at your earliest convenience at the email addresses listed above. Jay, Antonius, and Simon -------------------------------------------------------------------------- 2. Future of Community Modeling Session at GEM 2007 Workshop -------------------------------------------------------------------------- From: Michael Wiltberger A goal of the GEM program is to create geospace general circulation models (GGCM) which the community can use to study topics throughout the coupled solar wind - magnetosphere - ionosphere system. In the climate community, component models (e.g. oceans, ice, and atmosphere) are coupled together to form models such as the Community Climate System Model (CCSM) under the direction of a science steering committee. The infrastructure is designed to support the improvement or replacement of component models with new versions. It is also important to note, as the recent International Panel on Climate Change (IPCC) report has shown, that there are several different climate models used throughout the world. In geospace, several groups are working on versions of GGCMs and through this session we would like to address several issues including: 1) Would the geospace modeling community benefit from adopting a community modeling paradigm similar to the climate community? Or perhaps something different? 2) How might community geospace modeling evolve? 3) Are there community-based guidance, procedures, infrastructure, etc. that would be helpful to establishing a successful community space weather model? 4) Other topics of concern to community modeling? If you are interested in presenting in the session which is currently scheduled for Monday afternoon please contact Michael Wiltberger via email to wiltbemj@ucar.edu. +-------------------------------------------------------------------------+ |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 | +-------------------------------------------------------------------------+