NOTE: Due to an administrative error, the following announcement was accidentally excluded from the previous issue.
Mini-GEM: Dipolarization and its Effects in the Inner Magnetosphere Focus Group
From: Christine Gabrielse, Slava Merkin, Drew Turner, David Malaspina, Matina Gkioulidou (christine.gabrielse(at)aero.org)
The Dipolarization and its Effects in the Inner Magnetosphere Focus Group solicits ~5-minute summary talks for the upcoming Mini-GEM meeting. Our first session (Wednesday Jan 20, 12-2pm) will be to present these talks, our second session (Thursday Jan 21, 12-2pm) will be for discussion and planning challenge topics for the Summer 2021 meeting.
Topics may address any of the following questions, which have been highlighted during the Summer 2020 meeting as community-directed interests:
• What are the mechanisms responsible for both elementary and global magnetotail dipolarizations and are they captured by current state-of-the-art models?
• What is the role of reconnection and/or other plasma instabilities in producing elementary magnetotail dipolarizations? (e.g., ballooning/interchange instability?)
• What is the relationship, if any exists, between elementary magnetotail dipolarizations and more global dipolarization during substorms?
• What is the role of elementary magnetotail dipolarizations in:
(i) enhancements of the ring current?
(ii) creating the seed electron population for the radiation belts?
(iii) the generation of different wave modes (e.g., ULF, chorus, hiss, EMIC, equatorial noise, etc.) in the inner magnetosphere?
• How does the ring current form, including what is the relative role of different scales for different driving?
• What is the minimal modeling framework to capture this?
• How do we validate models?
• Dipolarization fronts with/without particle injections: What determines this?
• How much energy and/or particles are transferred from the reconnection region to the inner magnetosphere?
• For a summary of the Focus Group, see the Wiki page:
https://gem.epss.ucla.edu/mediawiki/index.php/FG:_Magnetotail_Dipolarization_and_Its_Effects_on_the_Inner_Magnetosphere
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