GEM/CEDAR M3-I2 Sessions

2016 GEM/CEDAR JOINT MEETING -- Santa Fe, NM

Co-Chairs for M3-I2 Sessions

Shasha Zho, U. of Michigan/CLaSP
Barbara Giles, NASA/GSFC/GPL
Vince Eccles, USU/CASS

Session 1: Monday PM1 - Status, Questions, & Opportunities
Magnetospheric Effects of Ionospheric Ingection

Attendence: ~45
Summary:
It has become apparent to the magnetospheric and inner magnetospheric modeling community that model results are dramatically altered by the presence and placement of ionospheric ions throughout the magnetosphere. Both quiet time and storm time ionospheric upflow and outflow must be correctly established to advance a better understanding of the magnetosphere-ionosphere-thermosphere (M-I-T) coupled system. This must truly be a GEM-CEDAR joint effort to address:

the ionosphere boundary layer,

the ion energization region of the polar wind

the magnetospheric response to solar wind drivers and the ionospheric outflow

the feedback into the lower ionosphere-thermosphere

Invited speakers reviewed the status of current understanding and modeling of the effects of ionospheric ion injections on the magnetosphere. The GEM Focus Group Chairs presented goals-overview of plans and moderate a discussion on new in situ observational opportunities for metric studies on plasma sheet, ring current, and substorm dynamics to direct improvements in the current Geospace General Circulation Models (GGCMs).

Speakers:
Charles R. Chappell (Vanderbilt U): Changing the Paradigm! -- The Ionospheric Role in Filling the Magnetosphere with Plasma and Driving Its Dynamics
Daniel Welling (U Mich): Outflow Really Matters! -- What GLobal MHD Modeling Tells Us About Outflow and the Magnetosphere

Other Contributors:
Barbara Giles (NASA/GSFC): MMS Opportunities
Matina Gkioulidou (APL/JHU): Van Allen Probe Ring Current Observations
Naritoshi Kitamura (ISAS/JAXA): MMS FPI Observations
Jonathan Krall (NRL): Plasmapause in the SAMI3 model
Chris Mouikis (UNH): Dst storm epoch study of ion outflow
Lynn Kistler (UNH): Multi-satellite view of sawtooth storm morphology

Session 2: Monday PM2 - Status, Questions, & Opportunities
Polar Wind and the Ionospheric Boundary

Attendence: ~35
Summary:
Invited speakers reviewed the status of current understanding and modeling of ion upflow initiated in the ionospheric boundary. This is key for proper M-I-T coupling. There are many open questions on ion energization for the ionospheric polar wind that the community still must address. To address this question properly, the spatial and temporal variations of the ionospheric boundary (below 600km) must be defined accurately in the polar and sub-auroral regions for appropriate comparison of PW model results to satellite data.

The GEM Focus Group Chairs present goals and moderated a discussion on the open questions of ion upflow/outflow. This effort should strive to marshal new in situ and ground-based observational abilities with current modeling capabilities to addressing these open issues. CEDAR scientists are strongly encouraged to participate in this session as a collaborative GEM-CEDAR Session on M-I-T coupling.

Speakers:
Roger Varney (SRI): Areas for Improvement in Ion Outflow Modeling
George Khazanov (NASA/GSFC): Polar Wind M-I-T Coupling: Kinetic vs Hydrodynamic</a>

Other Contributors:
Shunrong Zhang (U Mich): ISR campaign opportunities
Bruce Fritz (UNH): RENU2 Sounding Rocket
Douglas Rowland (NASA/GSFC): VISIONS Sounding Rocket
W. K. (Bill) Peterson (LASP): ePoP Status

Session 3 & 4: Friday PM - Recap, Organize, Planning

Attendence: ~25 and ~15
Summary:
Invited speaker reviewed the big picture possibilities of the Focus Area for advancing community capabilities and GGCMs. The Chairs summarized results of the previous two breakout sessions and moderated a discussion on issues to address:

Robert Strangeway: What are the Questions of Ion Injection and Magnetospheric Response

Other Contributors:
Vince Eccles: Generalized Polar Wind Model (GPW)
Naritoshi Kitamura: Model and Measurement Comparisons of Ion Outflow