Table of Contents ====================================================================== 1. Magnetosheath Focus Group: Call for Presentations at the 2014 GEM Summer Workshop 2. Magnetic Reconnection in the Magnetosphere Focus Group: Call for Presentations at the 2014 GEM Summer Workshop ====================================================================== *************************** ** THE GEM MESSENGER ** *************************** Volume 24, Number 14 May 27, 2014 ---------------------------------------------------------------------- 1. Magnetosheath Focus Group: Call for Presentations at the 2014 GEM Summer Workshop ---------------------------------------------------------------------- From: Katariina Nykyri and Steve Petrinec Magnetosheath FG will have 3 sessions planned for the upcoming GEM meeting: Session 1 (Thursday, 1:30-3:00, Joint with Geospace System Science FG) The Magnetosheath and Geospace System Science FGs are holding a joint session at the summer GEM meeting on Thursday 19th of June at 01:30- 03:00 PM. We seek observational and theory/simulation speakers who study physical mechanisms on how magnetosheath (MSH) properties impact and drive magnetospheric (MSP) plasma and field properties. For example, the specific entropy from magnetosheath into magnetosphere increases by orders of magnitude but the physical mechanisms responsible for this are not clearly understood. Talks that discuss the origins of non-adiabatic plasma heating via magnetopause or magnetospheric plasma processes are encouraged: 1. Are there some specific solar wind and magnetosheath conditions where the specific entropy increase is further enhanced or reduced? 2. How do the electron and ion temperature and specific entropy ratios change from magnetosheath into magnetosphere (dayside, inner magnetosphere and magnetotail) and what physical mechanisms in the magnetosheath, magnetopause and magnetosphere contribute to maintaining or changing these ratios during different SW conditions? 3. Can we identify similarities and differences in these heating processes in the magnetosheath-magnetosphere system from those in solar corona? To enable adequate discussion we limit each speaker to 3-5 slides. Send your contribution idea to session organizers by 7th of June: jborovsky@Space.Science.org petrinec@lmsal.com nykyrik@erau.edu william.lotko@dartmouth.edu alejo@macul.ciencias.uchile.cl vadim.uritsky@nasa.gov Session 2 (Thursday, 3:30-5:00, Joint with Magnetic Reconnection FG) The Magnetosheath and Reconnection FGs are holding a joint session at the summer GEM meeting on Thursday 19th of June at 03:30-05:00 PM. In addition to a few speakers to set the stage, we seek observational and theory/simulation speakers who study 1. The consequences of foreshock and magnetosheath turbulence on dayside reconnection, 2. The effects of velocity shear and plasma beta on dayside reconnection, 3. Plasma heating in magnetosheath reconnection To enable adequate discussion we limit each speaker to 3-5 slides (including 1 introduction slide to acclimate students in attendance). Send your contribution idea to session organizers by 7th of June: petrinec@lmsal.com nykyrik@erau.edu pacassak@mail.wvu.edu homakar@gmail.com arunov@igpp.ucla.edu Session 3 (Friday, 10:30-12:15) We seek observational and theory/simulation speakers (3-5 slides/speaker) who have recent new results on the topics related to the magnetosheath FG proposal and which are not addressed in the joint sessions (see above). Also, as this is the last FG meeting, we ask previous GEM magnetosheath FG participants to send a 2-3 slide summary of their magnetosheath work and list of publications addressing any of the topics listed in GEM FG proposal and/or challenge related to dawn-dusk asymmetries. A discussion of a possible magnetosheath FG review paper is also presented. Accomplishments of the magnetosheath FG will be presented at Friday afternoon summary session. Send your contribution idea to session organizers by 7th of June: petrinec@lmsal.com nykyrik@erau.edu (Editor's Note: This announcement can be viewed at the 2014 Summer Workshop wiki page at: http://aten.igpp.ucla.edu/gemwiki/index.php/2014_Summer_Workshop) ---------------------------------------------------------------------- 2. Magnetic Reconnection in the Magnetosphere Focus Group: Call for Presentations at the 2014 GEM Summer Workshop ---------------------------------------------------------------------- From: Paul Cassak , Andrei Runov , and Homa Karimabadi We are announcing plans for the "Magnetic Reconnection in the Magnetosphere" Focus Group sessions at the upcoming GEM Meeting. The format for each is to have two speakers set the scene on a particular topic. Others are encouraged to contribute to the discussion and put up a slide or two as relevant. Half of one session will be for general contributions consisting of no more than 4 slides - 1 for intro to acclimate graduate students, and no more than 3 on your topic. If you would like to be considered for one of the general contributions, please email Paul.Cassak at mail.wvu.edu with your topic. We will try to accommodate as many of the requests for talks as possible. We strongly encourage everyone wishing to present to sign up to give a poster to ensure you are able to present more than a few slides. Please let one of the focus group chairs know if you have any comments or questions. The dates, times, locations, and summaries for each session are described here: Monday 6/16, 10:30am-12:15pm, Ports Ballroom I-III First half - "What controls the rate of dayside reconnection?" Scene-setters - Joe Borovsky and Ramon Lopez Science - It has long been thought that the reconnection rate at the dayside is controlled by the electric field in the solar wind. Recent observations that geomagnetic indices are affected by plasmaspheric drainage plumes called this into question, suggesting local control of the reconnection rate. This session will tackle this fundamental question of importance to solar wind-magnetospheric coupling. We will hear from proponents on each side and discuss how future progress will be made on these questions. Second half - "General Contributions" Scene-setters - None Science - Please consider contributing a few slides on any topic on reconnection (provided it is GEM relevant). Observations, modeling, and theory presentations are encouraged. Again, since we are only leaving 45 minutes for this session, all potential contributors are encouraged to also sign up to give a poster. Monday 6/16, 1:30pm-3:00pm, Ports Ballroom I-III First half - "What determines the cross-tail scale of reconnection jets?" Scene-setters - Phil Pritchett and Jiang Liu Science - Multi-satellite missions have made it accessible to study the three-dimensional structure of reconnection in the magnetotail. Observationally, what is the characteristic length in the out-of-plane direction of the reconnection events? Theoretically, what physically sets this length? These topics will be discussed in this session. Second half - "How is magnetotail reconnection modulated by dayside reconnection? What is the nature of magnetotail reconnection onset and transients?" Scene-setters - Toshi Nishimura and Joachim Birn Science - Reconnection in the magnetotail onsets abruptly, and is often bursty. It can further be modulated due to time-dependent phenomena on the dayside. This session will discuss how reconnection in the magnetotail responds to modulation from the dayside and what causes reconnection onset and transients in the magnetotail. Observational and theoretical/modeling considerations will be discussed. Monday 6/16, 3:30pm-5:00pm, Ports Ballroom I-III (Joint with "Tail- Inner Magnetosphere Interactions" Focus Group) Scene-setters - Misha Sitnov and Andrei Runov Science - This joint session will focus on the relationship between bursty bulk flows/dipolarization fronts and reconnection, both from the observational and theoretical/modeling perspective. In many ways, this is a continuation of the1:30-3:00 session, but additional attention will be paid to the ramifications on the inner magnetosphere. Please let Paul.Cassak at mail.wvu.edu or toffo atrice.edu know if you are interested in contributing. Thursday 6/19, 3:30pm-5:00pm, Ports Ballroom I-III (Joint with "The Magnetosheath" Focus Group) Scene-setters - TBD Science - We seek observational and theory/simulation speakers who study 1. the consequences of foreshock and magnetosheath turbulence on dayside reconnection, 2. the effects of velocity shear and plasma beta on dayside reconnection, 3. plasma heating in magnetosheath reconnection. Please send your contribution ideas to session organizers by the 6th of June(any of the above organizers or petrinec at lmsal.com or nykyrik at erau.edu) We look forward to seeing you at the sessions! Please let the organizers (Paul.Cassak at mail.wvu.edu) know about contributions by Friday, June 6. (Editor's Note: This announcement can be viewed at the 2014 Summer Workshop wiki page at: http://aten.igpp.ucla.edu/gemwiki/index.php/2014_Summer_Workshop) +-------------------------------------------------------------------+ | 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 | +-------------------------------------------------------------------+