Table of Contents ====================================================================== 1. Call for Presentations at 2010 GEM Workshop: "Near Earth Magnetosphere: Plasma, fields and coupling" Focus Group 2. Call for Presentations at 2010 GEM Workshop: Magnetosheath studies 3. Call for Presentations at 2010 GEM Workshop: Radiation-Belt and Waves Modeling (RBWM) Focus Group ====================================================================== *************************** ** THE GEM MESSENGER ** *************************** Volume 20, Number 6 April 21, 2010 ---------------------------------------------------------------------- 1. Call for Presentations at 2010 GEM Workshop: "Near Earth Magnetosphere: Plasma, fields and coupling" Focus Group ---------------------------------------------------------------------- From: Focus Group co-chairs - Sorin Zaharia , Stan Sazykin and Benoit Lavraud The Near Earth Magnetosphere: Plasma, Fields and Coupling Focus Group will hold 3 sessions at the upcoming GEM Summer Workshop in Snowmass (June 20-25, 2010). We invite potential contributors to participate with short presentations on the following topics: 1). Effect of plasma on storm-time electric and magnetic fields 2). Plasma sheet effect on ring current dynamics 3). Electric fields in the near-Earth magnetosphere (potential and inductive) 4). Coupling of physics-based inner magnetosphere with global magnetosphere models or any other topics of interest to the focus group. It is the ultimate goal of the focus group to improve physical knowledge and modeling of the near-Earth (closer than 10 RE) magnetosphere and its coupling with the outer magnetosphere; a more detailed description of the focus group objectives can be found at http://aten.igpp.ucla.edu/gemwiki/index.php/FG8._Near_Earth_Magnetosphere:_plasma%2C_fields%2C_and_coupling Potential contributors are encouraged to contact Sorin Zaharia (szaharia at lanl.gov) with the title of their presentation. ---------------------------------------------------------------------- 2. Call for Presentations at 2010 GEM Workshop: Magnetosheath studies ---------------------------------------------------------------------- From: Steven Petrinec and Katariina Nykyri Magnetosheath focus group will hold sessions at the next GEM workshop on 21-25th of June, 2010 in Snowmass Village Colorado. We invite short presentations related to any of the focus group topics. The Primary Objectives and Expected Activities of the FG: 1. To produce more comprehensive models of large scale magnetosheath flow and field patterns, and geometry of the magnetosheath region 2. To improve understanding of magnetosheath plasma instabilities and wave particle interactions: Spatial distribution and characteristics 3. To develop a better understanding of the effects on magnetospheric dynamics due to processes occurring in the magnetosheath and due to characteristic magnetosheath properties. The focus group proposal with specific science questions can be found at http://aten.igpp.ucla.edu/gem/pdf/GEM_FG_MSheath_proposal.pdf. We especially encourage data-analysts utilizing in-situ spacecraft measurements from Themis and Cluster missions, theoretical modelers, global and local modelers to participate in this workshop and present your findings. We also encourage presentations of studies of magnetosheaths around other solar system bodies, as they relate to the terrestrial magnetosheath. See GEM website for further details: http://www.cpe.vt.edu/gem/ ---------------------------------------------------------------------- 3. Call for Presentations at 2010 GEM Workshop: Radiation-Belt and Waves Modeling (RBWM) Focus Group ---------------------------------------------------------------------- From: J. Bortnik , Y. Shprits, S. Elkington and C. Kletzing The Radiation-Belt and Waves Modeling (RBWM) focus group will hold several sessions at the 2010 GEM Workshop, during 20-25 June 2010. We invite short presentations (several slides) related to any of RBWM's broad topics: - Wave excitation, propagation and distribution (ULF, VLF, etc.) - Dynamical modeling of the radiation belts (acceleration, loss, etc.) - Wave-particle interactions (linear, nonlinear, non-resonant) The RBWM focus group kicks off this year, and aims to achieve a first- principles understanding of the coupled dynamic variability of the radiation-belts, and the wave environment that controls it. A few sample questions that are of particular interest to this focus group are: - what are the physical processes responsible for wave excitation? - what are the spatiotemporal distributions of various plasma waves and what are their relative roles in producing acceleration/loss? - what are the roles of linear, nonlinear, and non-diffusive wave- particle interactions in RB dynamics? - what are the quantitative effects of transport via interactions with ULF waves? - what is the role of the seed population in radiation belt dynamics? - why do some storms produce flux increases, decreases, or no variation? If you would like to learn more about this focus group, or submit a presentation, please use the following resources: Wiki page http://aten.igpp.ucla.edu/gemwiki/index.php/FG:_Radiation_Belts_and_Wave_Modeling Submission page http://spreadsheets.google.com/viewform?formkey=dEhELVhvSXg5VS1HQmd3dzhCY3BaMGc6MQ We look forward to your participation +-------------------------------------------------------------------+ |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://aten.igpp.ucla.edu/GemWiki | |Workshop Information: http://www.cpe.vt.edu/gem/index.html | +-------------------------------------------------------------------+