Organization and People

2013-07-02T15:35:03Z

Peterchi: member update

Organization and People

2013-07-02T15:07:17Z

Peterchi: Member updates

Main Page

2013-07-02T14:47:58Z

Peterchi: Updated GEM white paper

<big>'''Geospace Environment Modeling (GEM)'''</big> [[Image:NSF_Logo_color.jpg|100 px]]

Geospace Environment Modeling (GEM) is a broad-based, community-initiated research program on the physics of the Earth's magnetosphere and the coupling of the magnetosphere to the atmosphere and to the solar wind. The purpose of the GEM program is to support basic research into the dynamical and structural properties of geospace, leading to the construction of a global Geospace General Circulation Model (GGCM) with predictive capability. This GGCM model will be modularized and will complement parallel developments of magnetohydrodynamic models. The strategy for achieving GEM goals is to undertake a series of campaigns and focus groups, in both theory and observational modes, each focusing on particular aspects of the geospace environment.

The Geospace Environment Modeling (GEM) program is sponsored by [http://www.nsf.gov/div/index.jsp?div=AGS National Science Foundation (NSF) Division of Atmospheric and Geospace Sciences].

== What's New ==
* The latest draft of [http://spc.igpp.ucla.edu/gem/pdf/GEMWhitePaper-2013.07.01.pdf '''GEM White Paper'''] is now available. (Posted at GemWiki on 7/2/2013)
* GEM held two workshops back-to-back during June 16-23, 2013. See [[2013 Summer Workshop|'''2013 Summer Workshop''']] and [[2013 GEM-CEDAR Workshop|'''2013 GEM-CEDAR Workshop''']] for details.
* The 2012 GEM Mini-Workshop was held in San Francisco on Sunday, December 2.([http://gem.epss.ucla.edu/mediawiki/pdf/MiniWorkshopSchedule_GEM2012.pdf Workshop Schedule])

== Acknowledgment and Disclaimer ==
This GemWiki site is supported by the National Science Foundation under Grant No. 0903107. Any opinions, findings and conclusions or recommendations expressed at this web site are those of the authors and do not necessarily reflect the views of the National Science Foundation (NSF).

FG: Dayside FACs and Energy Deposition

2013-06-20T17:39:40Z

Peterchi:

'''Chairs: Delores Knipp, Geoff Crowley, Stefan Eriksson, and Ramon Lopez'''

(delores.knipp [at] gmail.com) (gcrowley [at] astraspace.net)
(eriksson [at] lasp.colorado.edu) (relopez [at] uta.edu)

'''Focus Group Final Report:''' [http://gem.epss.ucla.edu/mediawiki/pdf/GEM_FED_final_report.pdf PDF link] (Version: March 31, 2013)

===GOAL===

''Explain the relation between enhanced dayside Poynting flux and field-aligned currents, sources of field-aligned currents in the solar wind and magnetosphere and their impacts in the ionosphere-thermosphere system''

----

[[Image:FG_proposal_Dayside_Energy_Deposition-upload.pdf|thumb]]
----

===Description===

Recent efforts to improve satellite drag prediction have revealed a set of events with anomalous thermospheric density signatures (B. Bowman, personal comm.). These events are associated with interplanetary shocks and large in-the-ecliptic interplanetary magnetic field (IMF) values, often, but not exclusively, while the IMF BZ is positive (Knipp et al., GEM Meeting 2009). Crowley et al. (2010) used the Assimilative Mapping of Ionospheric Electrodynamics (AMIE) procedure to verify extreme values of Joule heating at the foot points of the near-cusp and polar cap field lines during such events and associate them with unmodeled density enhancements. A new Poynting flux data set from the DMSP F-15 satellite confirms the localized dayside energy input (Knipp et al., Work In Progress (WIP), 2010) and further links these events with instances of strong upward ion flow. Although we cite mostly northward IMF literature below, such events also occur with neutral and slightly southward IMF in the presence of a large IMF BY component.

===Expected Activities and Research Topics===

We propose to investigate the disturbances described above. There is a significant likelihood that such events direct energy into the dayside thermosphere with little energy input to the magnetotail. Thus the Dst index, could remain unperturbed or even show storm recovery while the coupled dayside high-latitude region is greatly disturbed. We anticipate the following will be fruitful research topics.

*Dayside energy sources and transport for events with large IMF By and Bx (with Bz +/-)

*Dayside field-aligned current systems for large in-the-ecliptic IMF (By and Bx with Bz +/-)

*The location and nature of Poynting and particle energy deposition for IMF Bz>0 and large BY

*The role of enhanced solar wind density and speed during such events

*The relation of such events to cusp region thermospheric density anomalies

*Overall energy contributions to the coupled magnetosphere-ionosphere-thermosphere

*Methods for detecting such disturbances; indices vs. space based monitors

*More realistic MHD modeling of such disturbances

*Overall magnetospheric structure during such disturbances

*Daily and seasonal conductivity effects of high-latitude Joule heating events

==GEM Summer 2010 Meeting FED Topics==

The FED focus group will hold two sessions at the upcoming GEM Workshop (June 20-25) in Snowmass, covering data, theory, modeling aspects of the following topics:

*Dayside Poynting Flux, Joule Heating and Field Aligned Currents

*Particle Energy Deposition on the Dayside

*Dissipation of Magnetospheric Energy in the Dayside Thermosphere

*Thermospheric Density Enhancements and Traveling Atmospheric/Ionospheric Disturbances

*Solar Wind Drivers for Extreme Dayside Poynting Flux Events

Session Highlights:
Session highlights

• Multiple events under study or consideration—mostly during 2005 (Knipp)

• Apparent relation to FACs adjacent to well-defined flow channels (AMIE, DMSP) (Eriksson and Crowley)

• Conclusive evidence of large thermospheric density effects (CHAMP, AMIE & TIMEGCM-Crowley)

• Evidence of reverse convection in both hemispheres during strong Bz+, Poynting Flux largest in sunlight hemisphere (OPENGGCM and Cluster- Lu)

• Likely relation to ion upwelling and ion outflows (Strangeway)

• Success with initial MHD modeling (OPENGGCM-Li), (LFM-Wiltberger)

• Additional/alternative possible cause: Bowshock current closure (Lopez)

• New statistical summary of field-aligned currents from DMSP (Wing)

• Discussion of importance/relation of open closed fields and field topology (Strangeway)

• Discussion of By vs Bz effects on Dst (Mitchell)

• Discussion of new global thermospheric heating empirical model (Weimer)

• Discussion on rocket experiment results for oxygen upwelling in cusp (Jaynes)

• Post session discussion of Joule heating (Song) [[Image:Dayside_NBZ_heating_Song.pdf |thumb]]

• Discussion of new observing opportunities AMPERE, AMISR, SWARM

• Significant interest from broader GEM community ( Modes of Response, Ion Outflow, MI-coupling and GGCM FAs)

• Two events adopted by GGCM metrics FA for further study:

15 May 2005 and 9-11 July 2005 (Sheath/CME)

• Significant Interest during M-I Coupling Session at CEDAR

==Potential Event Study List with OMNIweb Data==

*Nov 7-10 2004 Two major storms in sequence
Second storm had prolonged interval of Large By
OPENGGCM run completed for first storm
[[Image:Nov_2004.pdf|alt=Nov_6-13_2004_OMNIweb_Data]]
[[Image:DMSP_F-15_along_orbit_vertical_Poynting_Flux.pdf]]

*Jan 21 2005 Second storm of two-storm sequence
This event had long interval of Bz+ with By large
OPENGGCM run completed for second storm
See OMNI_data below

*May 15 2005 Isolated major storm
This event had long interval of Bz+ with By and Bx large and rotating
[[Image:Ace_May15_2005.png |thumb]]
See OMNI_data below and Eriksson et al., 2008 (c.f. DMSP ExB response on the right)
[[Image:Dmsp_exb_polar_20050515.jpg|thumb]]

*Jul 09-10 2005 Isolated major storm
Long lead up with more than 18 hr of moderate Bz-.
See OMNI_data below

*Aug 24 2005 Isolated major storm
This event had long interval of Bz+ with By large and rotating
TIMEGCM run completed for this event
See OMNI_data below and Aug 24 DMSP D-15 Poynting Flux in thumbnail
Crowley et al., 2010
[[Image:Poynting Flux DMSP F-15.jpg|thumb]]

----

[[Image:Jan_2005.gif|Jan_16-23_2005_OMNIweb_Data]]
----

[[Image:May_2005.gif|May_14-18_2005_OMNIweb_Data]]

----
[[Image:Jul_2005.gif|Jul_09-13_2005_OMNIweb_Data]]

----
[[Image:Aug_2005.gif|Aug_23-26_2005_OMNIweb_Data]]

FG: Dayside FACs and Energy Deposition

2013-06-20T17:37:22Z

Peterchi: Add FG Final Report (version from Delores)

'''Chairs: Delores Knipp, Geoff Crowley, Stefan Eriksson, and Ramon Lopez'''

(delores.knipp at gmail.com) (gcrowley at astraspace.net)
(eriksson at lasp.colorado.edu) (relopez at uta.edu)

Focus Group Final Report: [http://gem.epss.ucla.edu/mediawiki/pdf/GEM_FED_final_report.pdf PDF link] (Version March 31, 2013)

FACs and Energy Deposition (FED)

===GOAL===

''Explain the relation between enhanced dayside Poynting flux and field-aligned currents, sources of field-aligned currents in the solar wind and magnetosphere and their impacts in the ionosphere-thermosphere system''

----

[[Image:FG_proposal_Dayside_Energy_Deposition-upload.pdf|thumb]]
----

===Description===

Recent efforts to improve satellite drag prediction have revealed a set of events with anomalous thermospheric density signatures (B. Bowman, personal comm.). These events are associated with interplanetary shocks and large in-the-ecliptic interplanetary magnetic field (IMF) values, often, but not exclusively, while the IMF BZ is positive (Knipp et al., GEM Meeting 2009). Crowley et al. (2010) used the Assimilative Mapping of Ionospheric Electrodynamics (AMIE) procedure to verify extreme values of Joule heating at the foot points of the near-cusp and polar cap field lines during such events and associate them with unmodeled density enhancements. A new Poynting flux data set from the DMSP F-15 satellite confirms the localized dayside energy input (Knipp et al., Work In Progress (WIP), 2010) and further links these events with instances of strong upward ion flow. Although we cite mostly northward IMF literature below, such events also occur with neutral and slightly southward IMF in the presence of a large IMF BY component.

===Expected Activities and Research Topics===

We propose to investigate the disturbances described above. There is a significant likelihood that such events direct energy into the dayside thermosphere with little energy input to the magnetotail. Thus the Dst index, could remain unperturbed or even show storm recovery while the coupled dayside high-latitude region is greatly disturbed. We anticipate the following will be fruitful research topics.

*Dayside energy sources and transport for events with large IMF By and Bx (with Bz +/-)

*Dayside field-aligned current systems for large in-the-ecliptic IMF (By and Bx with Bz +/-)

*The location and nature of Poynting and particle energy deposition for IMF Bz>0 and large BY

*The role of enhanced solar wind density and speed during such events

*The relation of such events to cusp region thermospheric density anomalies

*Overall energy contributions to the coupled magnetosphere-ionosphere-thermosphere

*Methods for detecting such disturbances; indices vs. space based monitors

*More realistic MHD modeling of such disturbances

*Overall magnetospheric structure during such disturbances

*Daily and seasonal conductivity effects of high-latitude Joule heating events

==GEM Summer 2010 Meeting FED Topics==

The FED focus group will hold two sessions at the upcoming GEM Workshop (June 20-25) in Snowmass, covering data, theory, modeling aspects of the following topics:

*Dayside Poynting Flux, Joule Heating and Field Aligned Currents

*Particle Energy Deposition on the Dayside

*Dissipation of Magnetospheric Energy in the Dayside Thermosphere

*Thermospheric Density Enhancements and Traveling Atmospheric/Ionospheric Disturbances

*Solar Wind Drivers for Extreme Dayside Poynting Flux Events

Session Highlights:
Session highlights

• Multiple events under study or consideration—mostly during 2005 (Knipp)

• Apparent relation to FACs adjacent to well-defined flow channels (AMIE, DMSP) (Eriksson and Crowley)

• Conclusive evidence of large thermospheric density effects (CHAMP, AMIE & TIMEGCM-Crowley)

• Evidence of reverse convection in both hemispheres during strong Bz+, Poynting Flux largest in sunlight hemisphere (OPENGGCM and Cluster- Lu)

• Likely relation to ion upwelling and ion outflows (Strangeway)

• Success with initial MHD modeling (OPENGGCM-Li), (LFM-Wiltberger)

• Additional/alternative possible cause: Bowshock current closure (Lopez)

• New statistical summary of field-aligned currents from DMSP (Wing)

• Discussion of importance/relation of open closed fields and field topology (Strangeway)

• Discussion of By vs Bz effects on Dst (Mitchell)

• Discussion of new global thermospheric heating empirical model (Weimer)

• Discussion on rocket experiment results for oxygen upwelling in cusp (Jaynes)

• Post session discussion of Joule heating (Song) [[Image:Dayside_NBZ_heating_Song.pdf |thumb]]

• Discussion of new observing opportunities AMPERE, AMISR, SWARM

• Significant interest from broader GEM community ( Modes of Response, Ion Outflow, MI-coupling and GGCM FAs)

• Two events adopted by GGCM metrics FA for further study:

15 May 2005 and 9-11 July 2005 (Sheath/CME)

• Significant Interest during M-I Coupling Session at CEDAR

==Potential Event Study List with OMNIweb Data==

*Nov 7-10 2004 Two major storms in sequence
Second storm had prolonged interval of Large By
OPENGGCM run completed for first storm
[[Image:Nov_2004.pdf|alt=Nov_6-13_2004_OMNIweb_Data]]
[[Image:DMSP_F-15_along_orbit_vertical_Poynting_Flux.pdf]]

*Jan 21 2005 Second storm of two-storm sequence
This event had long interval of Bz+ with By large
OPENGGCM run completed for second storm
See OMNI_data below

*May 15 2005 Isolated major storm
This event had long interval of Bz+ with By and Bx large and rotating
[[Image:Ace_May15_2005.png |thumb]]
See OMNI_data below and Eriksson et al., 2008 (c.f. DMSP ExB response on the right)
[[Image:Dmsp_exb_polar_20050515.jpg|thumb]]

*Jul 09-10 2005 Isolated major storm
Long lead up with more than 18 hr of moderate Bz-.
See OMNI_data below

*Aug 24 2005 Isolated major storm
This event had long interval of Bz+ with By large and rotating
TIMEGCM run completed for this event
See OMNI_data below and Aug 24 DMSP D-15 Poynting Flux in thumbnail
Crowley et al., 2010
[[Image:Poynting Flux DMSP F-15.jpg|thumb]]

----

[[Image:Jan_2005.gif|Jan_16-23_2005_OMNIweb_Data]]
----

[[Image:May_2005.gif|May_14-18_2005_OMNIweb_Data]]

----
[[Image:Jul_2005.gif|Jul_09-13_2005_OMNIweb_Data]]

----
[[Image:Aug_2005.gif|Aug_23-26_2005_OMNIweb_Data]]

GEM Focus Groups

2013-06-20T17:21:56Z

Peterchi: Change the order of Past Focus Group (most recent first)

==Active Focus Groups==

* [[FG11. Plasmasphere-Magnetosphere Interactions|Plasmasphere-Magnetosphere Interactions]] (2008 - 2013; J. Goldstein and J. Borovsky; RA:IMS)
* [[FG12. Substorm Expansion Onset: The First 10 Minutes|Substorm Expansion Onset: The First 10 Minutes]] (2008 - 2013; V. Angelopoulos, S. Ohtani, K. Shiokawa; RA:Tail)
* [[FG13. Modes of Solar WInd-Magnetosphere Energy Transfer|Modes of Solar WInd-Magnetosphere Energy Transfer]] (2008 - 2013; B. McPherron, L. Kepko; RA:Tail)
* [[FG: Radiation Belts and Wave Modeling|Radiation Belts and Wave Modeling]] (2010 - 2014; Y. Shprits, S. Elkington, J. Bortnik, C. Kletzing; RA:IMS)
* [[FG: The Magnetosheath|The Magnetosheath]] (2010 - 2014; S. Petrinec, K. Nykyri; RA:Dayside)
* [[FG: Metrics and Validation|Metrics and Validation]] (2011 - 2015; M. Kuznetsova, A. Ridley, T. Guild, L. Rastaetter, H. Singer; RA:GGCM)
* [[FG: The Ionospheric Source of Magnetospheric Plasma|The Ionospheric Source of Magnetospheric Plasma--Measuring, Modeling and Merging into the GEM GGCM]] (2011 - 2015; R. Schunk, R. Chappell, D. Welling; RA: MIC, GGCM)
* [[FG: Scientific Magnetic Mapping & Techniques|Scientific Magnetic Mapping & Techniques]] (2011 - 2015; E. Donovan, E. MacDonald, R. Millan; RA: MIC)
* [[FG: Tail-Inner Magnetosphere Interactions|Tail-Inner Magnetosphere Interactions]] (2012 - 2016; Pontus Brandt, John Lyon, and Frank Toffoletto; RA: Tail)
* [[FG: Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures|Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures]] (2012 - 2016; Hui Zhang, Q.-G. Zong, Michael Ruohoniemi, and David Murr; RA: Dayside)
* [[FG: Magnetic Reconnection in the Magnetosphere|Magnetic Reconnection in the Magnetosphere]] (2013 - 2017; Paul Cassak, Andrei Runov, and Homa Karimabadi; RA: GGCM)
* [[FG: Storm-Time Inner Magnetosphere-Ionosphere Convection|Storm-Time Inner Magnetosphere-Ionosphere Convection]] (2013 - 2017; Joseph Baker, Michael Ruohoniemi, Stanislav Sazykin, Peter Chi, and Mark Engebretson; RA: IMS, MIC)

(RA: Research Area)

==Past Focus Groups==

* [[FG: Dayside FACs and Energy Deposition|Dayside FACs and Energy Deposition]] (2010 - 2012; D. Knipp, G. Crowley, S. Eriksson, R. Lopez; RA:Dayside, MIC)
* [[FG8. Near Earth Magnetosphere: plasma, fields, and coupling|Near Earth Magnetosphere: plasma, fields, and coupling]] (2007 - 2012; S. Zaharia, S. Sazykin, B. Lavraud; RA: IMS, Tail)
* [[FG10. Diffuse Auroral Precipitation|Diffuse Auroral Precipitation]] (2006 - 2011, RA: MIC, IMS)
* [http://virbo.org/GEMFG9 Space Radiation Climatology] (2006 - 2011, RA: IMS, see also [http://groups.google.com/group/gem-2007-space-radiation-climatology-fg9 FG9 google email group])
* [[FG4. Plasma Entry and Transport into and within the Magnetotail|Plasma Entry and Transport into and within the Magnetotail]] (2006 - 2011, RA: Tail)
* [[FG6. Cusp Physics|Cusp Physics]] (2006-2010, RA: Dayside)
* [[FG1. GGCM Metrics and Validation|GGCM Metrics and Validation]] (2005 - 2010, RA: GGCM)
* [[FG2. GGCM Modules and Methods|GGCM Modules and Methods]] (2005 - 2010, RA: GGCM)
* [[FG3. Foreshock, Bowshock, Magnetosheath|Foreshock, Bowshock, Magnetosheath]] (2004 - 2009, RA: Dayside)
* [[FG5. Dayside Magnetopause Reconnection|Dayside Magnetopause Reconnection]] (2004 - 2009, RA: Dayside)
* [[FG7. MIC Electrodynamics|MIC Electrodynamics]] (2003 - 2008, RA: MIC)

(RA: Research Area)

FG: Storm-Time Inner Magnetosphere-Ionosphere Convection

2013-06-20T16:59:25Z

Peterchi: Update presentation schedule

''Focus Group Co-Chairs:''

* Joseph Baker, Virginia Tech (jo.baker [at] vt.edu)
* J. Michael Ruohoniemi, Virginia Tech (mikeruo [at] vt.edu)
* Stanislav Sazykin, Rice University (sazykin [at] rice.edu)
* Peter Chi, University of California Los Angeles (pchi [at] igpp.ucla.edu)
* Mark Engebretson, Augsburg College (engebret [at] augsburg.edu)

''Term of Effort'':

5 years (2013 – 2017)

== Sessions at the 2013 Summer Workshop ==

Time:
# Thursday, June 20, 03:30 - 05:00 PM
# Friday, June 21, 10:30 AM - 12:15 PM

Location: Salon C

Thursday afternoon session (3:30--5:00 pm):

# ''Jo Baker'' (Virginia Tech): Characteristics of SAPS seen with SuperDARN and results from conjunctions with the Van Allen Probes
# ''Stan Sazykin'' (Rice U.): SAPS modeling and comparison with observations
# ''Josh Rigler'' (USGS): ground-based magnetometer data overview
# ''Peter Chi'' (UCLA): update on ground-based magnetometer observations on field line resonance sounding
# ''Jichun Zhang'' (UNH): Observationsof ion "trunk structures" by the Van Allen probes and their modeling (needs to give it on Thursday)
# ''Raluca Ilie'' (U.Mich.): How do the changes in the inner magnetospheric ion composition affect the dynamics of a magnetic storm?
# ''Vania Jordanova'' (LANL): improvements of physics based modeling of ring current
# ''Gang Lu'' (HAO/NCAR): Mid- and low-latitude ionospheric plasma drift associated with prompt penetration electric fields
# ''Jimmy Raeder'' (UNH): Convection, shielding, and magnetosphere inflation during storms with the coupled OpenGGCM-RCM

Friday morning session (10:30 am--12:15 pm):

# ''Matina Gkioulidou'' (JHU/APL): RBSPICE data from recent storms
# ''Colby Lemon'' (Aerospace): RCM-E simulations of ring current electrons
# ''Mei-Ching Fok'' (NASA Goddard): A Comprehensive Inner Magnetosphere Ionosphere (CIMI) Model
# ''Jian Yang'' (Rice U.): On the rate of ring current injection
# ''Mike Liemohn'' (U. Mich): What can current system analysis tell us about inner magnetosphere MI coupling?
# ''Guan Le'' (NASA Goddard): Results from C/NOFS data on ring current evolution and asymmetry
# ''Shin-ichi Ohtani'' (JHU/APL): inductive electric fields in the storm-time inner magnetosphere from Cluster observations
# ''Naomi Maruyama'' (NOAA): Validating/improving self-consistent physics-based simulations of the coupled inner magnetosphere-ionosphere-thermosphere system during storms
# ''Sasha Zou'' (U. Michigan): Multi-instrument observation of the Storm Enhanced Density (SED) during Oct. 24-25, 2011 storm: implications for SED formation processes
# ''Jacob Bortnik'' (UCLA): SPeCIMEN program (Specification and Prediction of the Coupled Inner-Magnetospheric Environment)

Dear Colleagues,

This year's GEM Summer Workshop marks the initiation of a new Focus
Group to examine "Storm-Time Inner Magnetosphere-Ionosphere Convection
(SIMIC)". The SIMIC Focus Group will bring together observations and
modeling to examine the coupled dynamics of the inner magnetosphere
and ionosphere during geomagnetic storms. Recent improvements in
modeling and ground- and space-based instrumentation allow this topic
to be examined with unprecedented spatial and temporal resolution and
coverage. Some examples of relevant parameters of interest include:
plasma distributions, magnetic topology, convection electric fields,
and current systems. More details about the SIMIC Focus Group can be
found at:

http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_Storm-Time_Inner_Magnetosphere-Ionosphere_Convection

We invite short presentations that highlight one or more of the
following themes:

# Improvements in self-consistent physics-based simulations of the coupled inner magnetosphere-ionosphere system during geomagnetic storms.
# Instrumentation which can be used to examine storm-time magnetosphere-ionosphere coupling over large spatial scales and validate the simulations (e.g. magnetometers, radars, imaging, GPS receivers, etc.)
# Any other discussion topics relevant to articulating an appropriate scope and emphasis for this Focus Group. (Since this is the first year, we are open to any comments or suggestions about how to move forward most effectively.)

The SIMIC Focus Group will hold two sessions on Thursday afternoon and
Friday morning. We have deliberately scheduled the sessions for late
in the week to benefit those people who aim to attend both GEM and
CEDAR.

If you would like to give a SIMIC presentation, please email Joseph
Baker (jo.baker [at] vt.edu) and Stan Sazykin (sazykin [at] rice.edu) with
a working title and short description of your talk.

Here's to a great SIMIC kick-off!

== Focus Group Proposal (2012) ==

==== Abstract ====
A new GEM Focus Group (FG) is proposed to study Storm-Time Inner Magnetosphere – Ionosphere Convection (SIMIC). This FG will bring together experimentalists, modelers, and theorists to synthesize a new understanding of how plasma distributions, convection electric fields, and current systems emerge and evolve in the inner magnetosphere and conjugate ionosphere during geomagnetic storms. The new SIMIC FG is motivated by: (1) improvements in self-consistent physics-based modeling of the coupled inner magnetosphere-ionosphere system which require ongoing validation and improvement, (2) several recent augmentations to ground- and space-based instrumentation which collectively provide new datasets with unprecedented spatiotemporal coverage and resolution, and, (3) recent ramping up of solar activity leading to increased geomagnetic activity. Two specific scientific themes related to inner magnetosphere - ionosphere convection that will be explored in detail are the Sub-Auroral Polarization Stream (SAPS) and penetration electric fields. The new SIMIC FG will build upon the achievements of two existing FGs which are just now coming to completion in 2012-2013, namely, the Near-Earth Magnetosphere: Plasma, Fields and Coupling FG and the Plasmasphere-Magnetosphere Interactions FG. The new SIMIC FG will also be complementary to several ongoing FGs, such as Scientific Magnetic Mapping and Techniques (SMMT) and Tail-Inner Magnetosphere Interactions (TIMI). The specific goals of the SIMIC FG are: (1) develop an improved canonical description of convection in the coupled inner magnetosphere - ionosphere during storms, (2) validate and improve the performance of coupled inner magnetosphere-ionosphere models, and, (3) make steps toward developing a new module for active ionospheric feedback during storms. A particular emphasis of the SIMIC FG will be to encourage the use of spatially distributed ionospheric measurements and network magnetic observations for validating and improving geospace models. Finally, there will be ample opportunity to involve the CEDAR community which has similar interests in examining geomagnetic storm phenomena and has several useful datasets that can be brought to bear on this problem.

==== Topic Description ====

To be able to understand and model the dynamics of the Geospace environment, the GEM community has always sought to analyze how large-scale magnetospheric current systems and plasma flows are generated, and how mass, energy, and momentum flow throughout the coupled magnetosphere-ionosphere-thermosphere system. The large-scale global electric and magnetic fields play a major role in magnetospheric convection. For example, it is now known that plasma convection in the inner magnetosphere - ionosphere: (1) can be highly structured by forming subauroral polarization stream (SAPS) channels, (2) may be transient at times (i.e. prompt penetration ionospheric electric fields), (3) is important for controlling plasmasphere dynamics, and, (4) includes magnetospheric dipolarization fronts associated with entropy “bubbles” and auroral phenomena that have meso-scale transient convection signatures. Yet our understanding of these dynamical processes in the inner magnetosphere during active periods is quite limited due to the paucity of spacecraft measurements in the region of interest. As a result, existing empirical models of the inner magnetosphere are static and statistical in nature, with most of them being based on single-point spacecraft measurements accumulated over extended periods of time. Therefore, further progress in geospace modeling requires an improved understanding of the coupling of convection features between the inner magnetosphere and ionosphere during geomagnetic storms. The new SIMIC FG will bring together globally distributed space- and ground-based datasets to characterize storm-related convection dynamical processes in the inner magnetosphere-ionosphere region, and fully coupled magnetosphere-ionosphere models to examine large-scale features of inner magnetosphere-ionosphere coupling during geomagnetic storms (e.g. SAPS, penetration electric fields, and substorm-related signatures). The assembled data sets will also be used to assess the accuracy of the modeling results.

==== Timeliness of the Focus Group ====

This FG is timely for the following reasons:

* In recent years there have been substantial augmentations to mid-latitude ground-based instrumentation. These include: (1) new mid-latitude SuperDARN radars, (2) expanded networks of auroral instruments and ground-based magnetometers (e.g. THEMIS GBOs), and, (3) improved coverage of GPS receivers for producing regional maps of Total Electron Content (GPS-TEC).
* Likewise, there is increased coverage of spacecraft datasets which together provide extensive in-situ measurements of the inner magnetosphere (e.g. Cluster, THEMIS, Van Allen Probes) and the subauroral ionosphere (e.g. AMPERE, DMSP, POES).
* Solar activity is rising toward solar maximum and so an emphasis on storm-time phenomena is particularly timely. The past 2-3 years has already provided several exciting events which have showcased the new capabilities provided by expanded instrument coverage. Over the next 3-5 years we can expect continued increases in activity which will provide ample more storm events for study.

We now have the capability to simultaneously monitor the following parameters with unprecedented spatiotemporal coverage and resolution:

* Subauroral ionospheric convection (e.g. mid-latitude SuperDARN)
* Flux-tube plasma content (e.g. GPS-TEC, magnetometer FLR measurements)
* Field-aligned currents (e.g. AMPERE, ground magnetometers)
* Auroral precipitation signatures and boundaries (e.g. THEMIS GBOs, DMSP).

Collectively, these datasets provide exciting new possibilities to examine the interrelationship between convection, currents, and plasma structuring; as well as test the predictions of the latest generation of coupled inner magnetosphere – ionosphere models.

==== Relation to existing GEM Focus Groups ====

The SIMIC FG will have direct synergies with the following existing FGs:

* Radiation Belts and Wave Modeling (2010-2014): Improved understanding of inner magnetosphere-ionosphere convection on global scales during geomagnetic storms will provide valuable constraints for the theoretical studies of energization and loss of radiation belt electrons carried out by the Radiation Belts and Wave Modeling (RBWM) FG.
* Metrics and Validation (2011-2015): The SIMIC FG will have a primary emphasis on carrying out detailed model-data comparisons to verify the performance of the latest generation of coupled inner magnetosphere-ionosphere models. The new FG thus has direct relevance to the Metrics and Validation FG.
* Tail-Inner Magnetosphere Interactions (2012-2016): Inner magnetosphere-ionosphere electrodynamics is driven by convection from the tail, with a large fraction of energy and mass transport controlled by so-called “entropy bubbles” which is of primary interest to the Tail-Inner Magnetosphere Interactions (TIMI) focus group. The results of the TIMI FG will thus have a direct bearing on the SIMIC FG.
* Scientific Magnetic Mapping and Techniques (2011-2015): Improved understanding of inner magnetosphere-ionosphere convection will provide new constraints for the Scientific Magnetic Mapping and Techniques (SMMT) FG. By the same token, new improved mapping techniques will undoubtedly help in the interpretation of event periods selected for study by the SIMIC FG.

==== Specific Goals and Deliverables ====

The specific goals and deliverables for the SIMIC FG are:
* Develop an improved canonical description of the storm-time evolution of plasma distributions, convection, and field-aligned currents in the coupled inner magnetosphere and ionosphere.
* Improve inner magnetospheric models (e.g., RCM, RAM-SCM, HEIDI, CRCM) to better predict dynamical phenomena during storms. These improvements will be guided by observations and exploring model parameters known to have large uncertainties (e.g., conductivities).
* Improve existing GGCMs such as SWMF, LFM, and OpenGGCM that are based on global MHD models but include coupling to other physics-based models. These improvements will come through identifying which physical processes and numerical aspects (e.g., grid resolution, time stepping) require modification to reproduce observed features.
* Make steps toward developing a new module to incorporate active ionospheric feedback on subauroral magnetic flux tubes during geomagnetic storms.
* Compile collections of linked papers exploring the dynamics of the coupled inner magnetosphere - ionosphere based on first principles modeling and detailed model-data comparisons.
* Encourage and expand the usage of distributed ionospheric datasets and magnetometer observations for validating and improving geospace models.
* Forge closer ties with the CEDAR scientific community in the study of geomagnetic storm phenomena.

==== GEM Research Areas ====

The SIMIC FG will primarily be associated with the following two GEM Research Areas:
* Inner Magnetosphere and Storms (IMS)
* Magnetosphere-Ionosphere Coupling (MIC)
It is also of secondary relevance to Geospace General Circulation Model (GGCM)

==== Science Questions, Activities, and Challenges ====

Some of the science questions addressed by the SIMIC FG include:
* How accurate are present empirical models of the inner magnetosphere electric and magnetic fields in capturing the latitude and longitude of dynamic ionospheric convection features during storms (e.g. SAPS)?
* Does self-consistent modeling of inner magnetosphere-ionosphere electric and magnetic fields accurately capture storm-time ionospheric features (e.g. time-scale of penetration electric fields and location/intensity of SAPS)?
* Is the standard model of SAPS formation and evolution accurate? To what extent does active ionosphere-thermosphere feedback play a role?
* Is the standard model of inner magnetosphere shielding by the region-2 field-aligned currents accurate? What are the time-scales on which penetration electric fields operate? What parameters modulate the amount of shielding?
* To what extent is it accurate to treat inner magnetosphere magnetic flux tubes as electrostatic equipotentials?
* What are the ionospheric convection signatures of “entropy bubbles” and to what extent are numerical models able to reproduce the observations?
* To what extent is the ionosphere a source of plasmaspheric depletion during storms? How is plasmaspheric depletion connected with other features of storm-time magnetosphere – ionosphere coupling?
* How are recent observations of post-noon enhancement in plasmaspheric mass density and annual variations related to similar ionosphere-thermosphere asymmetries?
Some of the activities and challenges that will be conducted include:
* Compilation of multi-instrument datasets for selected event periods to develop an improved canonical understanding of how inner magnetosphere – ionosphere convection evolves during geomagnetic storms in relation to field-aligned currents and large-scale plasma structures.
* Issuance of challenges for modelers to reproduce actual events (e.g. SAPS and penetration electric fields) with the aim of validating model performance and producing improvements.
* Compilation of collections of linked papers for a special issue of JGR or other relevant journal.

2013 Summer Workshop

2013-06-20T16:57:03Z

Peterchi: Update SIMIC FG schedule

'''June 16-21, 2013'''

'''Snowmass Conference Center, Snowmass, Colorado'''

[[Image:Snowmass2013_small.jpg]]

(''The Westin Snowmass Resort'')

Web links to more Workshop information:

* [http://www.cpe.vt.edu/gem/index.html GEM Workshop Website]
* [http://www.cpe.vt.edu/gem/schedule.html Workshop Schedule]
* [http://www.cpe.vt.edu/gem/poster.html Poster Information]
* [http://www.cpe.vt.edu/gem/travel.html Travel and Accommodations]
* [[GEM Student Forum|GEM Student Forum on Sunday, June 16, 2013]]

1st GEM Student Poster Competition:

* Students: Please register yourself for the competition at http://goo.gl/NbvrE.
* Volunteer for judging: Please sign up to volunteer at http://goo.gl/blCbF.

Below are '''session announcements''' and '''scheduled presentations (if available)''' for active GEM Focus Groups. Updates on scheduled presentations may be posted at individual Focus Group pages (see links from [[GEM Focus Groups|Focus Group pages]]). The symbol @ in all e-mail addresses below is replaced by " [at] ".

(''Last update of this page: 6/20/2013 9:45 Pacific Time'')

== [[FG: Tail-Inner Magnetosphere Interactions|Tail-Inner Magnetosphere Interactions]] ==
''Conveners: Frank Toffoletto, John Lyon, Pontus Brandt, and Vassilis Angelopoulos''

The GEM focus group on Tail-Inner Magnetosphere Interactions will hold
its breakout sessions on Monday - Tuesday, June 17-18, 2013. We invite
presentations that specifically address one of the following topics:

* Origin and evolution of BBFs and related phenomena (bubbles, dipolarization fronts, etc.)
* The impact of BBFs et al on transport during different levels of activity (e.g., quiet times, SMCs, substorms, storm main phases).
* The impact of BBFs et al on the inner magnetosphere, including ring current and radiation belts; braking oscillations and micropulsations.
* Auroral streamers and other ionospheric signatures of BBFs et al.

More information on the focus group can be found at:
http://gem.epss.ucla.edu/mediawikiwiki/index.php/GEM_Focus_Groups

We kindly ask presentations to be limited to 2-3 slides/5 minutes. If
you would like to be put on the schedule, please contact Frank
Toffoletto (toffo [at] rice.edu).

We look forward to seeing everyone at GEM and to your contributions.

====Scheduled Presentations====
GEM Tail Inner Magnetosphere Focus Group Breakouts

Monday June 17, 10:30 – 12:00 – Cathedral Peak

A. Origin and evolution of BBFs and related phenomena (bubbles, dipolarization fronts, etc.)

# Misha Sitnov, APL: Spontaneous formation of dipolarization fronts in the magnetotail
# Joachim Birn, SSL:
# John Lyon, Dartmouth:
# Jimmy Reader, UNH: Morphology and topology of BBFs and dipolarization fronts
# Chih-Ping Wang, UCLA: Evolution of low entropy region and its effect on transport from some RCM runs
# Mostafa El Alaoui, UCLA: Flow channels, dipolarization and turbulence
# Xiaoyan Zhou, Xu-Zhi Zhou, Vassilis Angelopoulos, Chih-Ping Wang, Shiquan Qi, UCLA/IGPP: Current Sheet Thinning and Disturbances Caused by Interplanetary Shock Compression

B. The impact of BBFs et al on transport during different levels of activity (e.g., quiet times, SMCs, substorms, storm main phases).

# Matina Gkioulidou, APL: RBSPICE observations from the March 17th storm
# Jian Yang, Rice: Effects of intermittent bubble injections on the storm recovery phase
# Shin Ohtani, APL: Solar cycle dependence of magnetotail stretching
# Jennifer Kissinger, GSFC: How SMC quasi-steady convection affects inner magnetosphere transport and energization of the radiation belts
# Grant Stephens and Misha Sitnov, APL: Empirical reconstructions of storm-time SMC events

Monday June 17, 1:30 – 3:00 – Cathedral Peak

C. The impact of BBFs et al on the inner magnetosphere, including ring current and radiation belts; braking oscillations and micropulsations.

# Andrei Runov, UCLA: Dipolarization front/fast flow braking
# Sasha Ukhorskiy, APL: Nonadiabatic Ion Acceleration at Injection Fronts
# Christine Gabrielse, UCLA: The effects of transient, localized electric fields on equatorial electron acceleration and transport towards the inner magnetosphere.
# Seth Claudepierre, Aerospace; Michael Wiltberger, NCAR; Scot Elkington, CU; Mary Hudson, Dartmouth: Initial Results from Lyon-Fedder-Mobarry Simulations Driven by Upstream Interplanetary Magnetic Field (IMF) Fluctuations
# Jichun Zhang, UNH: Van Allen Probes/ECT-HOPE data about ion access to the inner edge of the plasma sheet

D. Auroral streamers and other ionospheric signatures of BBFs et al.

# Toshi Nishimura, UCLA: Precursors of auroral streamers and BBFs seen in polar cap structures
# Ying Zou, UCLA: Structure of meso-scale polar cap flows and their influence on PBIs
# Bill Lotko, Dartmouth: What are the magnetospheric implications when more flux circulates in the dusk convection cell (in the ionosphere) than in the dawn cell?

Monday June 17, 1:30 – 3:00, 3:30 – 5:00 or Tuesday June 17, 10:30 – 12:00 – Cathedral Peak

Planning session on a TIMI Challenge?

== [[FG: The Magnetosheath|The Magnetosheath]] ==
''Conveners: Steve Petrinec <steven.m.petrinec [at] lmco.com>, Katariina Nykyri <nykyrik [at] erau.edu>''

Date/Room: Monday, 17 June (Salon C)
* Morning Session: 10:30 am - 12:15 pm
* Afternoon Session: 1:30 - 3:00 pm

==== Scheduled Presentations ====

* Katariina Nykyri: Statistical study of magnetosheath properties using 6+ years of THEMIS data
* Brian Walsh: X-ray emissions from the Earth's magnetosheath
* Andrey Samsonov: Influence of IMF cone angle on magnetosheath parameters: isotropic and anisotropic MHD results
* David Sibeck: The magnetosheath at lunar distances
* Nick Omidi: Generation of large scale density and temperature structures in the magnetosheath
* Jean Berchem: 3D Global Hybrid – Global MHD Comparisons
* Viacheslav Merkin: Kelvin-Helmholtz instability of the magnetospheric boundaryin a 3-dimensional global MHD simulation during northward IMF conditions
* Ted Fritz: TBD
* Chih-Ping Wang: Unusual encounters with the magnetosheath within the nominal magnetotail

== [[FG: Scientific Magnetic Mapping & Techniques|Scientific Magnetic Mapping & Techniques]] ==
''Conveners: Elizabeth MacDonald <macdonald [at] lanl.gov>, Robyn Millan <robyn.millan [at] dartmouth.edu>, and Eric Donovan <edonovan [at] ucalgary.ca)

The GEM Magnetic Mapping Focus group (bit.ly/gem_mapping) is pleased to announce our sessions for Snowmass 2013:

# Monday at 10:30 in Salon D
# Monday at 1:30 in Salon D

We will focus the first two sessions on mapping challenges around a number of new exciting events in the RBSP era including:

* Nov 14 (lobe crossings)
* Jan 17, Jan 26, Feb 2 (BARREL and RBSP wave conjunctions)
* Mar 17 (geomagnetic storm)

Coordinated study from multiple observation types and vantage points is encouraged and those who wish to present on other dates of interest are also welcome. Invited and confirmed speakers include Toshi Nishimura, Lutz Rastaetter, Alexa Halford, Phil Erickson, and Mei-ching Fok.

Finally, Tuesday at 10:30 in Salon D we will continue our successful collaboration with the Substorm Expansion Onset focus group.

Those interested in volunteering for any of these exciting, challenging topics, please contact Liz MacDonald, Robyn Millan, and/or Eric Donovan at your earliest convenience. We look forward to seeing you in Snowmass and thank you in advance for your participation.

====Scheduled Presentations====
(Tentative Agenda. Lots of discussion is highly encouraged! If you want to speak please get in touch with Liz, Robyn, or Eric.)

*Session 1: '''RBSP Mapping Challenges, Monday 10:30, Salon D'''
**Focus on events: Nov 14 (lobe crossings), Jan 17, Jan 26, Feb 2 (BARREL and RBSP wave conjunctions), Mar 17 (geomagnetic storm)
**Alexa Halford, BARREL
**Toshi Nishimura, RBSP pulsating aurora mapping
**Liz MacDonald, HOPE Nov 14 lobes
**Mei-Ching Fok, modeling of Nov 14 lobe event
**Manuel Grande, Nov 14 lobe event
*Session 2: '''Mapping Challenge Potpourri, Monday 1:30, Salon D'''
**Lutz Rastaetter, CCMC FAST boundary crossings
**Mike Henderson, PSD matching to test B-field models
**Yue Chao, 3D force balance magnetic field mode
**Mike Schultz, Source-Surface Modeling of Planetary Magnetospheres
**Jone Peter Reistad, auroral non-conjugacy
*Session 3: '''Joint with Substorm Expansion Onset FG, Tuesday 10:30, Salon D'''
**Matina Gkioulidou, RBSP observations of injections
**Phil Erickson (given by Robyn Millan), Ground-based measurements during BARREL substorms and connection to in situ electric fields
**Tetsuo Motoba, Conjugate observations of onset auroral dynamics
**Eric Donovan, Identifying magnetic conjugacy between satellites and the ground during onset

== [[FG: Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures|Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures]] ==
''Conveners: Hui Zhang <hzhang [at] gi.alaska.edu>, Q.-G. Zong <qgzong [at] gmail.com>, Michael Ruohoniemi <mikeruo [at] vt.edu>, David Murr <murrdl [at] augsburg.edu>''

The ''Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures'' focus group will hold four sessions at the upcoming GEM Workshop in Snowmass, CO, June 16-21, 2013.

* Session 1: 03:30 pm - 05:00 pm on Monday (June 17) Foreshock Phenomena
* Session 2: 10:30 am - 12:15 pm on Tuesday (June 18) Ground Signatures
* Session 3: 01:30 pm - 03:00 pm on Tuesday (June 18) Magnetopause Phenomena (joint with Reconnection FG)
* Session 4: 03:30 pm - 05:00 pm on Tuesday (June 18) Planning Session

If you would like to present in this focus group sessions, please send a tentative title of your presentation to hzhang [at] gi.alaska.edu

The Focus Group description is available at http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_Transient_Phenomena_at_the_Magnetopause_and_Bow_Shock_and_Their_Ground_Signatures

You can also find a table and a short description of some transient foreshock phenomena, together with a list of Hot Flow Anomaly and Foreshock Bubble event at this webpage. You are more than welcome to investigate these events and their ionospheric response.

We hope to see you soon at GEM!

==== Scheduled Presentations ====

Session 1: 03:30 pm - 05:00 pm on Monday (June 17) Foreshock Phenomena
* '''Drew Turner'''-Foreshock bubbles and their effects on particle acceleration and the magnetosphere-ionosphere system
* '''Nick Omidi'''- Mach number and cone angle dependence of SHFA formation.
* '''Christina Chu'''-Statistical study of HFAs-THEMIS observations
* '''Gabor Facsko'''-Turbulence in HFA cavities
* '''Hui Zhang'''-Recent advances in HFA studies
* '''Nick Omidi'''- Hybrid simulation of enhanced ion precipitation caused by an interplanetary shock

Session 2: 10:30 am - 12:15 pm on Tuesday (June 18) Ground Signatures
* '''David Murr''' - Overview of ground mag signatures for HFA events list on FG wiki
* '''Michael Hartinger''' -Magnetospheric ULF waves driven by the ion foreshock
* '''Evan Thomas''' -Mapping Ionospheric TOI to the Magnetopause
* '''Harald Frey''' (presented by Murr) - Dayside transients in the aurora as seen from the ground
* '''Mark Engebretson''' - EMIC waves stimulated by dayside transients
* '''Hyomin Kim'''-Conjugate observations of traveling convection vortices and electromagnetic ion cyclotron waves associated with transient events at the magnetopause: Initial Results from the 40-Degree Magnetic Meridian Conjugate Magnetometer Network
* '''Gar Bering''' - "Further Studies of the Relationship between Pc3 Emissions and TCV's"
* '''Mark Engebretson''' -TCVs observed by MACCS array

Session 3: 01:30 pm - 03:00 pm on Tuesday (June 18) Magnetopause Phenomena (joint with Reconnection FG)
* '''Brian Walsh'''-Plasmaspheric drainage plumes and reconnection
* '''Sunhee Lee'''-Cold ion behavior during magnetic reconnection at the magnetopause
* '''Rick Wilder'''-Cluster Observations of Reconnection Exhausts at the High-Latitude Magnetopause Under Extreme Density Asymmetry Conditions
* '''Binzheng Zhang'''- Bifurcation of soft electron precipitation under IMF By driving conditions
* '''Karlheinz J Trattner''' -Tracing multiple X-lines at the magnetopause
* '''Yaireska M. Colladovega'''- Determining the motion of FTEs on the dayside magnetopause
* '''Takuma Nakamura'''-Vortex induced reconnection
* '''Xuanye Ma'''-On the Interaction of Kelvin-Helmholtz Modes and Magnetic Reconnection for Large Magnetic Shear
* '''Shiva Kavosi'''- OpenGGCM Simulation of Kelvin-Helmholtz Instability observed by THEMIS

Session 4: 03:30 pm - 05:00 pm on Tuesday (June 18) Planning Session
* '''Joe Borovsky'''-The Effect of Sudden Wind Shears on the Earth’s Magnetosphere
* '''Andrey Samsonov'''-THEMIS observations of sudden impulses in the magnetosphere

== [[FG11. Plasmasphere-Magnetosphere Interactions|Plasmasphere-Magnetosphere Interactions]] ==
''Conveners: Joe Borovsky <jborovsky [at] spacescience.org>, Jerry Goldstein, and Maria Spasojevic''

The ''Plasmasphere-Magnetosphere Interaction'' focus group will have its final sessions at the 2013 GEM Summer Workshop in Snowmass June 16-21. Two sessions will be held on Tuesday Afternoon: one session in which plasmaspheric research findings from this last year will be reported, and one session that is a wrap-up/summary of progress made with the 5-year Focus Group. To make short contributions to either session, please contact Joe Borovsky (jborovsky [at] spacescience.org).

====Scheduled Presentations====

Time: Tuesday 1:30-3:00 PM and 3:00-5:00 PM

Location: Cathedral Peak

# Wen Li -- An unusual enhancement of low-frequency plasmaspheric hiss associated with substorm injected electrons
# Brian Walsh -- plumes at the magnetopause
# Joe Borovsky -- estimates of plumes and dayside reconnection
# Dan Welling -- long lived plumes
# Vania Jordanova -- simulation results
# Richard Denton -- simulation of EMIC waves for the June 9-10 2001 event
# Konstantin Gamayunov -- model results for EMIC waves
# Kyungguk Min -- quiet time equatorial mass distribution
# Jichun Zhang -- on the "trunk-like" ion spectral feature at the inner edge of the plasma sheet
# Final Discussion -- Does the plasmasphere have a future?

== [[FG: Magnetic Reconnection in the Magnetosphere|Magnetic Reconnection in the Magnetosphere]] ==
''Conveners: Paul Cassak, West Virginia University <Paul.Cassak [at] mail.wvu.edu>, Homa Karimabadi, University of California, San Diego, <homakar [at] gmail.com>, Andrei Runov, University of California, Los Angeles, <arunov [at] igpp.ucla.edu>''

We would like to solicit contributions to the "Magnetic Reconnection
in the Magnetosphere" Focus Group sessions at the upcoming GEM meeting
in Snowmass, Colorado on June 16 - 21, 2013. The Focus Group goals
description and other information is available at

http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_Magnetic_Reconnection_in_the_Magnetosphere.

Thus summer we plan four 1.5 hr-long sessions to discuss
# Dayside reconnection and its relation to transient phenomena at the magnetopause and bow shock (joint with Dayside Transient FG);
# Magnetotail reconnection and its role in substorms, pseudo breakups, PBIs and other substorm-related phenomena (joint with Substorm Onset FG);
# General problems of magnetospheric reconnection. Nominally, the session activities will address Signatures of Kinetic Scale Reconnection Physics (a prelude to the launch of MMS), but contributions on any topic including onset, evolution, and consequences are welcomed.

We welcome contributions based upon data analysis, simulations, and theory.

The tentative agenda of the workshop is available at
http://www.cpe.vt.edu/gem/2013GEM_agenda.pdf.

To follow the GEM philosophy and the informal workshop format, your
presentations need to be short and concise (without AGU-style
introductions and conclusions) in order to engender discussions. We
strongly suggest preparing 5 slides or less and 5 min-long
presentations focused strictly on the topic. We encourage
presentations by graduate students and postdoctoral researchers.

Please submit a tentative topic of your presentation (to help us plan
the session) and address your questions, if any, to

Paul Cassak, West Virginia University, Paul.Cassak [at] mail.wvu.edu

==== Scheduled Presentations ====
(in alphabetical order)

1:30 pm - 3:00 pm on Tuesday (June 18), joint with Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures focus group
# Yaireska Colladovega, determining motion of FTEs on the dayside magnetopause
# Shiva Kavosi, simulations of Kelvin-Helmholtz Instability observed by THEMIS
# Sunhee Lee, cold ion behavior during magnetic reconnection at the magnetopause
# Xuanye Ma, interaction of Kelvin-helmholtz and reconnection for large magnetic shear
# Takuma Nakamura, vortex induced reconnection
# Karlheinz Trattner, Tracing multiple X-lines at the magnetopause
# Rick Wilder, reconnection at high-latitude magnetopause with extreme density asymmetry
# Binzheng Zhang, soft electron precipitation bifurcations during large By driving

10:30 am - 12:15 pm on Wednesday (June 19), joint with Substorm Expansion Onset focus group=====
Expected speakers
# Joachim Birn (w/M. Hesse), near tail reconnection: onset
# Joachim Birn (w/M. Hesse), near tail reconnection: energy conversion
# Jim Drake, structure of reconnection exhausts and dipolarization fronts
# Stefan Kiehas, reconnection observations with THEMIS/ARTEMIS
# Andrei Runov, Update on Cluster and THEMIS/ARTEMIS observations
# Mikhail Sitnov, magnetotail reconnection onset and dipolarization fronts
# Mikhail Sitnov (w/S. Merkin), magnetotail reconnection onset: kinetic vs. MHD

1:30 pm - 3:00 pm and 3:30 - 5:00pm on Wednesday (June 19)
Expected speakers
# Amitava Bhattacharjee, plasmoids
# Joachim Birn, energetic particle fluxes & anisotropies at dipolarization fronts
# Joe Borovsky, solar wind coupling
# Paul Cassak, shear flow
# Lars Daldorff, PIC/BATS-R-US coupling
# John Dorelli, global Hall-MHD effects on magnetospheric convection
# John Dorelli, sw/ms coupling
# Jan Egedal, role of pressure anisotropy
# Stefan Eriksson, solar wind reconnection
# Gabor Facsko, solar wind disturbances forcing magnetotail reconnection
# Michael Hesse, asymmetric reconnection
# Colin Komar, dayside separators
# Yanhua Liu, counter streaming heavy ions in reconnection
# Kittipat Malakit, asymmetric reconnection
# Tai Phan, electron heating
# Mike Shay, electron heating
# Brian Walsh, plasmaspheric drainage plumes

== [[FG: Radiation Belts and Wave Modeling|Radiation Belts and Wave Modeling]] ==
''Conveners: Yuri Shprits <yshprits [at] atmos.ucla.edu>, Scot Elkington, Jacob Bortnik, Craig Kletzing''

The RBW focus group will have 6 sessions this year.

Sessions:
# Wed, Jun 19, (10:30am-12:15pm) RBW 1 -- GEM particle transport challenge
# Wed, Jun 19, (1:30pm-3:00pm) RBW 2 -- Dynamical modeling of the radiation belts (Preparing radiation belt models for Van Allen Probes data)
# Wed, Jun 19, (3:30pm-5:00pm) RBW 3 -- Wave-particle interactions (Particle scattering and transport)
# Thu, Jun 20, (10:30am-12:15pm) RBW 4 -- Wave excitation, propagation, and distribution (ULF)
# Thu, Jun 20, (1:30pm-3:00pm) RBW 5 -- Wave excitation, propagation, and distribution (VLF/ELF)
# Thu, Jun 20, (3:30pm-5:00pm) RBW 6 -- GEM wave challenge, overflow

You can submit the title of your presentation online by following the
link below to reserve a time slot during each individual session. We
invite potential contributions and encourage to participants to limit
presentations to approximately 5 min.

Please submit the title of your presentations by June 5th at

http://goo.gl/B7BY9

In particular, we would like to encourage modelers to participate in
the GEM particle modeling challenge as well as the wave modeling
challenge.

Data and rules for the GEM challenge are given on the ViRBO web site
at
http://virbo.org/RBW#2010_RBW_Challenge.

See you at GEM.

==== Scheduled Presentations ====

[http://gem.epss.ucla.edu/mediawikiwiki/images/4/43/RBWM-GEM2013.pdf Preliminary Schedule] (PDF file)

'''5-minute presentation limits:'''

Due to the large number of abstracts submitted to the Radiation Belts and Waves Focus Group, we would like to remind presenters to adhere to the 3-slide, 5-minute limit as much as possible. We have a limited amount of time and would like to accommodate as many speakers as we can, so we are asking presenters to please be succinct (yet convey the main point of the science clearly).

== [[FG: The Ionospheric Source of Magnetospheric Plasma|The Ionospheric Source of Magnetospheric Plasma--Measuring, Modeling and Merging into the GEM GGCM]] ==
''Conveners: Rick Chappell <rick.chappell [at] vanderbilt.edu>, Bob Schunk and Dan Welling''

We would like to invite your participation in an area of research that is directed toward creating a unified model that incorporates the outflow of plasma from the ionosphere into the creation and dynamics of the important plasma regions of the magnetosphere.

This GEM focus group has as its goal to improve the understanding of the role of the ionospheric outflow source by (1) refining outflow modeling through comparison with measurements, (2) adjusting the outflow modeling to become a compatible input to magnetospheric Geospace Global Circulation Models (GGCM), (3) comparing magnetospheric modeling results with satellite measurements and (4) examining ways in which the dynamic magnetosphere can couple back to influence the original ionospheric outflow.

We have planned the following four sessions for the upcoming GEM Snowmass meeting and would like for you to suggest topics that you would like to present in the sessions.

'''Session 1—Observational and Modeling Mysteries—June 19, 10:30am:'''
This session will be an opportunity for both modelers and experimentalists to present areas of unanswered questions in their work concerning outflow and its effects. The goal will be to solicit discussion from the GEM Ion Outflow-MMM community regarding approaches to solving the outstanding mysteries and to initiate new collaborative research in these areas.

'''Session 2—The Magnetosphere-Ionosphere System With and Without Outflow-June 19, 1:30pm:'''
This session will compare and contrast the characteristics of periods of strong outflow with periods of weak outflow in both the observational and modeling results. A focal point of this session will be to work toward a self-consistent coupling in the merging of the ionosphere and magnetosphere models considering effects such as precipitation, currents and electric fields.

'''Session 3—General Contributions in Measurements, Modeling and Merging—June 19, 3:30pm:'''
This session will cover a variety of topics related to measuring and modeling the ionospheric outflow and its effects on the magnetosphere as well as merging the ionospheric and magnetospheric models.

'''Session 4—Planning Session—June 20, 10:30am:'''
This will be an open discussion on the status of the focus group accomplishments in order to identify areas of research that are needed and approaches that can be initiated to drive new modeling, measurements and GGCM results.

Please send your topics and suggestions to Rick Chappell at rick.chappell [at] vanderbilt.edu.

We look forward to seeing you at the GEM meeting in June.

==== Scheduled Presentations ====

(''Presentations should be planned for 10 minutes with 5 minutes of discussion'')

Session 4-1: Observational and Modeling Mysteries—June 19, 10:30am, Salon D
* Bob Schunk: Neutral Polar Wind Mysteries
* Rick Chappell: The Low Energy Invisible Plasma Mystery
* Bill Lotko: Issues, Challenges and Advances Required for Outflow and Magnetospheric Modeling
* Joe Borovsky: The Plasma Cloak:Where It Comes From, How Often It Occurs, and Its Impact On Dayside Reconnection.
* Dan Welling: Outflow Effects on CPCP
* Naritoshi Kitamura: The Effect of Photoelectrons on the Polar Wind

Session 4-2: The Magnetosphere-Ionosphere System With and Without Outflow—June 19, 1:30pm, Salon D
* Dan Welling: Outflow versus No Outflow: Difficulties of Excluding Outflow
* Schunk/Abdallah: Escape of Plasma and Neutral Gas from the Earth's Upper Atmosphere
* Lynn Kistler: Relationship Between Sawtooth Events and O+ in the Plasma Sheet
* Yanhua Liu: The Thickness of O+ Mediated Reconnecting Current Sheet
* Alex Glocer: Superthermal Electrons and MI Coupling in Modeling Ionospheric Outflow
* Roger Varney: The Nature of Heat Flows Into the Daylit Polar Cap Ionosphere

Session 4-3: General Contributions in Measurements, Modeling and Merging—June 19, 3:30pm, Salon D
* Dennis Gallagher: Dynamics Explorer-1 Ion Densities and Temperatures
* Richard Denton, Jonathan Krall, Joe Huba: SAMI3 Plasmasphere Simulations
* Eric Donovan: Mechanisms of Energetic Mass Ejection Xplorer (MEMEX) Mission
* Karimabadi Homayoun: What Can We Gain By Coupling the Ionospheric Models To 3D Global Hybrid Simulations?

Session 4-4: Focus Group Planning Session—June 20, 10:30am, Salon D
* Suggestions, mini-presentations and discussion are encouraged to guide future focus group activities.

== [[FG13. Modes of Solar WInd-Magnetosphere Energy Transfer|Modes of Solar WInd-Magnetosphere Energy Transfer]] ==
''Conveners: R. McPherron <rmcpherron [at] igpp.ucla.edu>, J. Kissinger <jenni.kissinger [at] nasa.gov>, L. Kepko <larry.kepko [at] nasa.gov>"

The Focus Group on ''Modes of Solar Wind-Magnetosphere Energy Transfer'' will hold two sessions at the 2013 workshop. These sessions are scheduled at 10:30 AM to 12:15 PM and 1:30 to 3:00 PM on Thursday June 20. The Focus Group has examined the solar wind and magnetospheric conditions leading to different types of geomagnetic activity. This will be the last meeting of this Focus Group as GEM moves to other topics. We will begin with a review of our past activities and suggestions for future work. We are soliciting presentations related to the following topics:

# The occurrence of substorms as function of universal time, season, and solar cycle
# The properties of steady magnetospheric convection (SMC) and its relation to solar wind and prior substorm activity
# The occurrence and properties of sawtooth events
# The occurrence statistics of poleward boundary intensifications (PBI) during substorm phases and SMC
# A comparison of PBI and pseudo breakups

Please contact one of the organizers if you have material you wish to present. Plan for short informal presentations designed to stimulate discussion.

====Scheduled Presentations====

Location: Salon C

Session 1: 10:30 am - 12:15 pm on Thursday (June 20)
* '''Bob McPherron''' (UCLA): Focus group objectives and accomplishments
* '''Suzie Imber''' (U. Leicester): The role of magnetosphere-ionosphere coupling in producing different convection modes
* '''Bill Lotko''' (Dartmouth): What are the implications for convection and reconnection in the magnetosphere when more flux circulates in the dusk convection cell (in the ionosphere) than the dawn cell?
* '''Binzheng Zhang''' (Dartmouth): How do some SMC states emerge without an initiating substorm?
* '''Jenni Kissinger''' (NASA Goddard): How do SMC events end?
* '''Xia Cai''' (Virginia Tech): Auto detection of sawtooth events
* '''Xiangning Chu''' (UCLA): Solar cycle variations in substorm occurrence and strength

Session 1: 01:30 pm - 03:00 pm on Thursday (June 20)
* '''Joe Borovsky''' (SSI): Derived solar wind coupling functions: What they say about changes in solar wind parameters and changes in driving
* '''Bill Lotko''' (Dartmouth): Are ionospheric outflows required to induce sawtooth oscillations (or, what exactly is a sawtooth mode)?
* '''Lynn Kistler''' (UNH): O+ ion the plasma sheet during sawtooth events, isolated substorms, and storm time substorms
* '''Grant Stephens''' (APL): Empiricial reconstruction of storm-time steady magnetospheric convection events
* '''Gina DiBraccio''' (U. Michigan): Substorms seen by MESSENGER at Mercury
* '''Ryan McGranaghan''' (U. Colorado): Signature of the Russell-McPherron effect on thermospheric density
* '''Anna DeJong''' (CNU): Comparing the first tooth in an oscillation to initiating substorms of an SMC
* '''Bob McPherron and Jenni Kissinger''': Future directions

== [[FG: Metrics and Validation|Metrics and Validation]] ==
''Conveners: Tim Guild <timothy.b.guild [at] aero.org>, Howard Singer <howard.singer [at] noaa.gov>, and Lutz Rastaetter <lutz.rastaetter [at] nasa.gov>''

The GGCM Metrics and Validation Focus Group solicits short
contributions to three planned sessions at the upcoming GEM meeting in
Snowmass, Colorado, on Thursday and Friday, June 20-21. The session
descriptions are below. If you have a topic to discuss, please send
us a draft title so that we can begin to put together a program;
however, in the spirit of GEM, participation and brief, last-minute
informal presentations are always welcome.

'''Session 1:''' New Validation Results and Methods
In this session we solicit short presentations focusing on all aspects
of data-model comparisons. Welcomed themes could include geospace
model validation using regional ground magnetometer indices, model
responses to dynamic magnetopause boundaries, long-term
"climatological" model validation, using multi-variate metrics to
assess model performance, or any related contribution.

'''Session 2:''' How Validation Studies Guide Model Improvements:
In this session, we solicit short presentations on specific examples
of how discrepancies between models and observations have led to a
better understanding of the physics that needs to be incorporated into
models. Studies, or ideas, on studies involving model sensitivity to
inputs and various model parameters are welcome. The session will
include a discussion on better ways to design metrics and validation
studies to uncover missing physics in models.

'''Session 3:''' Validation of MHD models Coupled with other modules such
as the Ring Current and Polar Outflow
In this session we will investigate recent advances in the development
of coupled models of the magnetosphere, inner magnetosphere, the
plasmasphere/polar wind, and the ionosphere/thermosphere. We solicit
short presentations on methods to link models, validate the outputs
and constrain coupled model systems using observations. Emphasis
should be placed on new physical processes that are described by the
coupled models and on effects that remain out of scope and that limit
the effectiveness and stability of the coupling.

Thank you for your contributions.

==== Scheduled Presentations ====

(''We welcome additional contributions.'')

'''Session 1''': New Validation Results and Methods
Thursday, 1:30 PM – 3:00 PM (''Chair: Tim Guild'')

In this session we solicit short presentations focusing on all aspects of data-model comparisons. Welcomed themes could include geospace model validation using regional ground magnetometer indices, model responses to dynamic magnetopause boundaries, long-term "climatological" model validation, using multi-variate metrics to assess model performance, or any related contribution.

* Frank Toffoletto: Initial result from LFM RCM for Oct 2012 Storm
* Lutz Rastaetter and Howard Singer: dB/dt study (MHD and empirical) results / discussion
* Alex Glocer: Calculation of K index values from model magnetic perturbations
* Victoir Veibell and Bob Weigel (presented by Tim Guild): Climatological analysis of 12 months of MHD simulated ground magnetometer measurements
* Gabor Facsko: GUMICS-4 verification and footprint determination using static and dynamic global MHD simulations of the ECLAT project
* Roxanne Katus and Michael Liemohn: Climatological Validation of the HEIDI Ring Current Model
* Haje Korth: Statistical maps of TIMED/GUVI auroral emissions as a new global MHD validation data source

These next two talks may move to the beginning of the next session (Thursday 3:30-5:00).

* Josh Rigler: Metrics derived from multi-variate statistical distributions
* Asher Pembroke: Interpolating into "Hard to reach places" of MHD volumes for more accurate DST

'''Session 2''': How Validation Studies Guide Model Improvements
Thursday, 03:30 PM – 5:00 PM (''Chair: Howard Singer'')

In this session, we solicit short presentations on specific examples of how discrepancies between models and observations have led to a better understanding of the physics that needs to be incorporated into models. Studies, or ideas, on studies involving model sensitivity to inputs and various model parameters are welcome. The session will include a discussion on better ways to design metrics and validation studies to uncover missing physics in models.

* Howard Singer: Session Intro and Comments on Ensemble Modeling
* Dan Welling : Multi-Model Validation with the Space Weather Modeling Framework
* Margaret Chen: The effect of uncertain boundary conditions on ring current model validation
* Andrey Samsonov: Large-scale flow vortices following a magnetospheric sudden impulse (Simulations were done with SWMF, OpenGGCM and LFM.)
* Slava Merkin: Lessons from MHD-AMPERE comparisons
* Lutz Rastaetter: Magnetopause Challenge of 2010 and steps from there: Eents for future MP challenge

'''Session 3''': Validation of MHD models coupled with other modules such as the Ring Current and Polar Outflow
Friday: 10:30 AM – 12:15 PM (''Chair: Lutz Rastaetter'')

In this session we will investigate recent advances in the development of coupled models of the magnetosphere, inner magnetosphere, the plasmasphere/polar wind, and the ionosphere/thermosphere. We solicit short presentations on methods to link models, validate the outputs and constrain coupled model systems using observations. Emphasis should be placed on new physical processes that are described by the coupled models and on effects that remain out of scope and that limit the effectiveness and stability of the coupling.

* Joachim Raeder (co-authors Gilson & Toffoletto), OpenGGCM - RCM validations
* Raluca Ilie: Coupling of SWMF magnetosphere and Heidi Ring Current
* Michael Wiltberger: Validation of MFLFM Outflow Simulations
* All: Discussion on future Metrics and Validation Activities to Support GEM goals

If you have topics for discussion, please consider communicating them to the conveners before the session.

== [[FG: Storm-Time Inner Magnetosphere-Ionosphere Convection|Storm-Time Inner Magnetosphere-Ionosphere Convection]] ==
''Conveners: Joseph Baker, Stan Sazykin, Mike Ruohoniemi, Peter Chi, Mark Engebretson''

Dear Colleagues,

This year's GEM Summer Workshop marks the initiation of a new Focus
Group to examine "Storm-Time Inner Magnetosphere-Ionosphere Convection
(SIMIC)". The SIMIC Focus Group will bring together observations and
modeling to examine the coupled dynamics of the inner magnetosphere
and ionosphere during geomagnetic storms. Recent improvements in
modeling and ground- and space-based instrumentation allow this topic
to be examined with unprecedented spatial and temporal resolution and
coverage. Some examples of relevant parameters of interest include:
plasma distributions, magnetic topology, convection electric fields,
and current systems. More details about the SIMIC Focus Group can be
found at:

http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG:_Storm-Time_Inner_Magnetosphere-Ionosphere_Convection

We invite short presentations that highlight one or more of the
following themes:

# Improvements in self-consistent physics-based simulations of the coupled inner magnetosphere-ionosphere system during geomagnetic storms.
# Instrumentation which can be used to examine storm-time magnetosphere-ionosphere coupling over large spatial scales and validate the simulations (e.g. magnetometers, radars, imaging, GPS receivers, etc.)
# Any other discussion topics relevant to articulating an appropriate scope and emphasis for this Focus Group. (Since this is the first year, we are open to any comments or suggestions about how to move forward most effectively.)

The SIMIC Focus Group will hold two sessions on Thursday afternoon and
Friday morning. We have deliberately scheduled the sessions for late
in the week to benefit those people who aim to attend both GEM and
CEDAR.

If you would like to give a SIMIC presentation, please email Joseph
Baker (jo.baker [at] vt.edu) and Stan Sazykin (sazykin [at] rice.edu) with
a working title and short description of your talk.

Here's to a great SIMIC kick-off!

==== Scheduled Presentations ====

Time:
# Thursday, June 20, 03:30 - 05:00 PM
# Friday, June 21, 10:30 AM - 12:15 PM

Location: Salon C

Thursday afternoon session (3:30--5:00 pm):

# ''Jo Baker'' (Virginia Tech): Characteristics of SAPS seen with SuperDARN and results from conjunctions with the Van Allen Probes
# ''Stan Sazykin'' (Rice U.): SAPS modeling and comparison with observations
# ''Josh Rigler'' (USGS): ground-based magnetometer data overview
# ''Peter Chi'' (UCLA): update on ground-based magnetometer observations on field line resonance sounding
# ''Jichun Zhang'' (UNH): Observationsof ion "trunk structures" by the Van Allen probes and their modeling (needs to give it on Thursday)
# ''Raluca Ilie'' (U.Mich.): How do the changes in the inner magnetospheric ion composition affect the dynamics of a magnetic storm?
# ''Vania Jordanova'' (LANL): improvements of physics based modeling of ring current
# ''Gang Lu'' (HAO/NCAR): Mid- and low-latitude ionospheric plasma drift associated with prompt penetration electric fields
# ''Jimmy Raeder'' (UNH): Convection, shielding, and magnetosphere inflation during storms with the coupled OpenGGCM-RCM

Friday morning session (10:30 am--12:15 pm):

# ''Matina Gkioulidou'' (JHU/APL): RBSPICE data from recent storms
# ''Colby Lemon'' (Aerospace): RCM-E simulations of ring current electrons
# ''Mei-Ching Fok'' (NASA Goddard): A Comprehensive Inner Magnetosphere Ionosphere (CIMI) Model
# ''Jian Yang'' (Rice U.): On the rate of ring current injection
# ''Mike Liemohn'' (U. Mich): What can current system analysis tell us about inner magnetosphere MI coupling?
# ''Guan Le'' (NASA Goddard): Results from C/NOFS data on ring current evolution and asymmetry
# ''Shin-ichi Ohtani'' (JHU/APL): inductive electric fields in the storm-time inner magnetosphere from Cluster observations
# ''Naomi Maruyama'' (NOAA): Validating/improving self-consistent physics-based simulations of the coupled inner magnetosphere-ionosphere-thermosphere system during storms
# ''Sasha Zou'' (U. Michigan): Multi-instrument observation of the Storm Enhanced Density (SED) during Oct. 24-25, 2011 storm: implications for SED formation processes
# ''Jacob Bortnik'' (UCLA): SPeCIMEN program (Specification and Prediction of the Coupled Inner-Magnetospheric Environment)

== [[FG12. Substorm Expansion Onset: The First 10 Minutes|Substorm Expansion Onset: The First 10 Minutes]] ==
''Conveners: Vassilis Angelopoulos <vassilis [at] ucla.edu>, Shin Ohtani <Shin.Ohtani [at] jhuapl.edu>, Kazuo Shiokawa <shiokawa [at] stelab.nagoya-u.ac.jp>, Andrei Runov <arunov [at] igpp.ucla.edu>''

We would like to invite contributions to the Substorm Expansion Onset:
The First 10 Minutes Focus Group at the upcoming GEM meeting in
Snowmass on June 16-21, 2013. The Focus Group goals and other
information are available at:

http://gem.epss.ucla.edu/mediawikiwiki/index.php/FG12._Substorm_Expansion_Onset:_The_First_10_Minutes

For this summer we plan four 1.5 hr-long sessions to discuss

* Relative timing between onset signatures in space and on the ground
* The role of magnetotail reconnection (distant and near-Earth) in substorms and substorm-related processes, such as pseudo-breakups, PBIs, streamers, and other substorm-related phenomena (joint with the RX Focus Group)
* Substorm-related processes in the tail-dipole transition region
* Substorm onset mapping (joint with the Magnetic Mapping and Techniques Focus Group).

Since it is the Substorm Expansion Onset Focus Group final year, we
plan to allocate 10 minutes of each session for the final report
discussion.

The workshop agenda is available at
http://www.cpe.vt.edu/gem/schedule.html

Each speaker will be allotted time for 5 minutes (3 slides)
presentation, in order to ensure enough time for discussion. Please
submit tentative titles of your presentation and/or address your
questions to the FG coordinators.

FG: The Magnetosheath

2013-06-16T14:00:35Z

Peterchi: Revise 2013 schedule

''Focus Group Co-Chairs:''
* Steven Petrinec
* Katariina Nykyri

== Sessions at the 2013 Summer Workshop ==

Date/Room: Monday, 17 June (Salon C)
* Morning Session: 10:30 am - 12:15 pm
* Afternoon Session: 1:30 - 3:00 pm

Scheduled Presentations:
* Katariina Nykyri: Statistical study of magnetosheath properties using 6+ years of THEMIS data
* Brian Walsh: X-ray emissions from the Earth's magnetosheath
* Andrey Samsonov: Influence of IMF cone angle on magnetosheath parameters: isotropic and anisotropic MHD results
* David Sibeck: The magnetosheath at lunar distances
* Nick Omidi: Generation of large scale density and temperature structures in the magnetosheath
* Jean Berchem: 3D Global Hybrid – Global MHD Comparisons
* Viacheslav Merkin: Kelvin-Helmholtz instability of the magnetospheric boundaryin a 3-dimensional global MHD simulation during northward IMF conditions
* Ted Fritz: TBD
* Chih-Ping Wang: Unusual encounters with the magnetosheath within the nominal magnetotail

([http://gem.epss.ucla.edu/mediawikiwiki/images/6/6c/SCHEDULE_Magnetosheath_FG.pdf Focus Group agenda] for download)

== White Paper ==

* Magnetosheath Focus Group White Paper: 2012-May-11 [http://gem.epss.ucla.edu/mediawikiwiki/images/d/d7/GEM_Msheath_FG_white_paper_V1.pdf (download)]

== Workshop Report: Summer 2012 ==

Magnetosheath FG held three sessions. Sessions had two invited speakers and eight contributed presentations allowing plenty of time for questions, discussion and planning. Research methodology of the session speakers utilized magnetosheath data from various spacecraft missions including Cluster, THEMIS, Geotail etc. The modeling efforts included global hybrid simulations, global and local MHD and Hall MHD simulations and support vector regression machine technique. Also a development of the new global scale Vlasov model with initial results was discussed. We have divided a discussion of the sessions into 1. Highlights, 2. Where We Are Headed, 3. What we Have Accomplished and 4. Concluding Remarks.

1. Highlights:

Heli Hietala showed Cluster observations of super magnetosonic magnetosheath jets and discussed their possibe generation mechanism to be related to the wavy structure of the bow shock, which could lead to formation of a secondary shock. Jets can have scale sizes 1-6 R_E and produce magnetopause perturbations, magnetospheric pulsations and short local ionospheric convection enhancements.

Nick Omidi showed observations and simulations of magnetosheath density cavities and how changes in IMF can lead to large-scale changes in magnetosheath properties: 1) Change from large cone angle to small and back to large results in cavities in time series data 2) Intrinsic cavities in quasi-parallel sheath due to shock dissipation processes 3) Cavities caused by IMF discontinuities and associated structures such as Foreshock Bubbles.

Antonius Otto used 2D MHD and Hall-MHD simulations and showed that there is a significant entropy (non-adiabatic heating) increase at the magnetopause only when magnetosheath beta is low. Entropy production in 2D reconnection occurs in i) in the diffusion region ii) sometimes through weak fast shock at the leading edge of the steady outflow region, iii) through shocks at the boundary between outflow and inflow region. However, the heating in the diffusion region is likely of small importance because of the small volume ~ ion inertia scale. Also, the nonadiabatic heating is significant in the outflow regions only for small plasma beta. Nonadiabatic heating occurs in Hall dynamics at the same rate (for the same conditions) as in MHD.

Katariina Nykyri used 15 Global MHD simulations (BATSRUS hosted at CCMC) to determine the magnetosheath properties during Parker Spiral (PS) and Ortho-Parker Spiral (OPS) IMF orientation for various solar wind plasma betas and solar wind Mach numbers. She then generated 30 local simulations at the dawn-dusk terminator at each flank corresponding to global simulations. Results showed that dawn-flank is more Kelvin-Helmholtz unstable for PS orientation which can lead into more plasma heating on dawn-side magnetopause due to reconnection and shocks generated by KHI and due to kinetic Alfven wave generation.

2. Where We Are Headed:

A) Need to identify the best method for the statistical studies of magnetosheath properties:
Several speakers performed statistical studies using spacecraft data of the magnetosheath properties. Interestingly some studies found dawn-dusk density asymmetry while others did not:

* Chih-Ping Wang used Themis data and showed dependence of the angle between the magnetosheath magnetic field and velocity vectors as a function of downstream distance: 1. THEMIS statistical results show that magnetosheath Bxy becomes more aligned with the magnetosheath Vxy with increasing downtail distance. 2. The sheath density and temperature observed within 3 Re from the model magnetopause do not show significant dawn-dusk asymmetry.

* Brian Walsh selected magnetopause crossings of the THEMIS data and performeda statistical study of the magnetosheath densities at the vicinity of the magentopause. He noticed that densities were higher on the dawn side magnetosheath agreeing with the previous study by Paularena et al.

* Steven Petrinec showed statistical study of the magnetosheath properties using Geotail data. He did not observe any dawn-dusk density asymmetries, but the velocities were higher on dawn-flank magnetosheath.

* Jean Berchem showed couple of comparisons between global MHD simulation results and simultaneous observations made by Themis and Cluster in the magnetosheath. He illustrated that case studies will be needed to avoid misinterpreting results from statistical studies (e.g., orbital biases, seasonal effects) when comparing magnetosheath models with observations.

B) New Model Development:

* Arto Sandroos presented a new global Vlasov code under development at Finnish Meteorological Institute where protons are included as distribution fucntions and electrons as massless charge neutralizing fluid. The code has 10^11 cells in total and computations are targeted to run on 100 000 CPU cores. First results applied to comparison of magnetsoheath and magnetospheric densities showed a good agreement with global MHD GUMICS model results.

* Yongli Wang presented a new three-dimensional magnetopause model with a support vector regression machine (SVRM) utilizing a large database of 15089 magnetopause crossings collected from multiple spacecraft. Using SVRM technique the magnetopause shape had more structure than the previous magnetopause models: clear cusp structure is seen and the whole magnetopause location changessystematically with different dipole tilts. The error sizes in the model correlate with missing data points. The model will be put into web server for community to use.

3. What have we accomplished:

Steve Petrinec/Katariina Nykyri have written a ‘steady-state’ magnetosheath white paper (‘living document’) describing the challenges involved in empirical, theoretical and numerical magnetosheath modeling. This paper also describes the Magnetosheath Challenge. There will also be repositories for model runs and results at the CCMC and at Lockheed Martin.

4. Concluding Remarks

Magnetosheath is both a place for rich plasma physical processes and a filter between solar wind and the magnetospheric plasma and magnetic field enviroments. The magnetosheath properties are crucial determining the growth rates of various instabilities at the magnetopause determining the efficiency of solar wind mass, momentum and energy transport into the magnetosphere.

Interesting ’new’ phenomena are the super magnetosonic magnetosheath flows and there was lot of discussion on the possible generation mechanisms of these jets.
A lot of discussion was also devoted on hybrid simulations of the magnetosheath. One concern was the scale size of the structures in hybrid simulations vs. the real system size: e.g how many ion inertial lengths is the magnetosheath in hybrid simulation vs. in real magnetosphere.

There was a lot of discussion of how extreme care must be taken when statistical studies are done: where data is collected, orbital biases, seasonal effects, and how data is binned can affect the conclusions of the study. In this session two speakers arrived at opposite conclusions on the density asymmetry of the magnetosheath probably due to data selection: other speaker choose THEMIS data closer to the magnetopause and other further away from the magnetopause.

The purpose of the white paper is to describe the challenges in methodology for doing magnetosheath research, collect and document various model and statistical data-analysis results into repositories and understand how differences in methodology can lead to different results in statistical and modeling studies. Many publications documenting bow-shock, magnetopause and magnetosheath modeling and analysis leave out important details. Unfortunately the devil is in the details and everything needs to be documented, so that results can be reproduced by a third party. The white paper gives also examples of header files both for observational and numerical magnetosheath modeling that can assist in this quest.

2012-01-19T20:13:38Z

Peterchi:

MediaWiki:Sidebar

2012-01-19T20:13:10Z

Peterchi:

MediaWiki:Sidebar

2012-01-19T20:07:11Z

Peterchi: Change sidebar

GEM-ULTIMA Forum

2012-01-19T20:04:04Z

Peterchi:

[[Image:ULTIMA_logo_final_50percent.jpg]]

The GEM-ULTIMA Forum is held annually during the mini-GEM Workshops in December. The Forum is organized jointly by [http://gem.epss.ucla.edu/mediawikiwiki/index.php/Main_Page GEM] and [http://www.serc.kyushu-u.ac.jp/ultima/ultima.html the Ultra Large Terrestrial International Magnetometer Array (ULTIMA)]. At the Forum participants discuss all topics about ground-based magnetometers, including the operation of magnetometer stations, data distribution, and research using ground-based magnetometer data.

Below are the presentations made at the GEM-ULTIMA Forum.

== 2011 GEM-ULTIMA Forum on Ground-based Magnetometers ==

Date: Sunday, December 4, 2011

Location: Westin San Francisco Market Street

'''Session A. Community Presentations on Ground Magnetometers: Including Stations, Data, and Observations'''

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Pulkkinen_True_Ionospheric_Currents.pdf Determination of the true ionospheric currents and conductances from combined ground- and space-based observations (pdf)] by Antti Pulkkinnen (NASA GSFC, USA)

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yamazaki_by_Yumoto_SSW.pdf Relationship between SSW and Lunar-tidal ionospheric current enhancement obtained by MAGDAS data (pdf)] by Kiyohumi Yumoto for Yosuke Yamazaki (Kyushu University, Japan)

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Love_Intermagnet_1s_Data.pdf INTERMAGNET 1-sec Data (pdf)] by Jennifer Gannon for Jeffrey Love (USGS, USA)

'''Session B. ULTIMA Reports and Operation'''

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yumoto_ULTIMA_Agenda.pdf ULTIMA Welcome (pdf)] by Kiyohumi Yumoto (Kyushu University, Japan)

* Status reports from magnetometer arrays:
** AAIMNet by Brian Fraser (University of Newcastle, Australia)
** AUTUMN by Martin Connors (Athabasca University, Canada)
** CARISMA by Ian Mann (University of Alberta, Canada)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yumoto_MAGDAS_Sun_Earth_Coupling.pdf MAGDAS (pdf)] by Kiyohumi Yumoto (Kyushu University, Japan)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Chi_Update_for_McMAC_Falcon.pdf McMAC & Falcon (pdf)] by Peter Chi (UCLA, USA)
** SAMBA by Eftyhia Zesta (Air Force Research Laboratory, USA)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Vellante_by_Piersanti_SEGMA.pdf SEGMA (pdf)] by Mirko Piersanti for Massimo Vellante (University of L'Aquila, Italy)

GEM-ULTIMA Forum

2012-01-19T19:59:45Z

Peterchi:

[[Image:ULTIMA_logo_final_50percent.jpg]]

The GEM-ULTIMA Forum is held annually during the mini-GEM Workshops in December. The Forum is organized jointly by [http://gem.epss.ucla.edu/mediawikiwiki/index.php/Main_Page GEM] and [http://www.serc.kyushu-u.ac.jp/ultima/ultima.html the Ultra Large Terrestrial International Magnetometer Array (ULTIMA)]. At the Forum participants discuss all topics about ground-based magnetometers, including the operation of magnetometer stations, data distribution, and research using ground-based magnetometer data.

Below are the presentations made at the GEM-ULTIMA Forum.

== 2011 GEM-ULTIMA Forum on Ground-based Magnetometers ==

Date: Sunday, December 4, 2011

Location: Westin San Francisco Market Street

'''Session A. Community Presentations on Ground Magnetometers: Including Stations, Data, and Observations'''

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Pulkkinen_True_Ionospheric_Currents.pdf Determination of the true ionospheric currents and conductances from combined ground- and space-based observations (pdf)] by Antti Pulkkinnen (NASA GSFC, USA)

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yamazaki_by_Yumoto_SSW.pdf Relationship between SSW and Lunar-tidal ionospheric current enhancement obtained by MAGDAS data (pdf)] by Kiyohumi Yumoto for Yosuke Yamazaki (Kyushu University, Japan)

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Love_Intermagnet_1s_Data.pdf INTERMAGNET 1-sec Data (pdf)] by Jennifer Gannon for Jeffrey Love (USGS, USA)

'''Session B. ULTIMA Reports and Operation'''

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yumoto_ULTIMA_Agenda.pdf ULTIMA Welcome (pdf)] by Kiyohumi Yumoto (Kyushu University, Japan)

* Status reports from magnetometer arrays:
** AAIMNet by Brian Fraser (University of Newcastle, Australia)
** AUTUMN by Martin Connors (Athabasca University, Canada)
** CARISMA by Ian Mann (University of Alberta, Canada)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yumoto_MAGDAS_Sun_Earth_Coupling.pdf MAGDAS (pdf)] by Kiyohumi Yumoto (Kyushu University, Japan)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Chi_Update_for_McMAC_Falcon.pdf McMAC & Falcon (pdf)] by Peter Chi (UCLA, USA)
** SAMBA by Eftyhia Zesta (US Air Force, USA)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Vellante_by_Piersanti_SEGMA.pdf SEGMA (pdf)] by M. Piersanti for Massimo Vellante (University of L'Aquila, Italy)

GEM-ULTIMA Forum

2012-01-19T19:57:56Z

Peterchi: Add ULTIMA image

[[Image:ULTIMA_logo_final_50percent.jpg]]

The GEM-ULTIMA Forum is an annual meeting held during the mini-GEM Workshops in San Francisco each December. The Forum is organized jointly by [http://gem.epss.ucla.edu/mediawikiwiki/index.php/Main_Page GEM] and [http://www.serc.kyushu-u.ac.jp/ultima/ultima.html the Ultra Large Terrestrial International Magnetometer Array (ULTIMA)]. At the Forum participants discuss all issues about ground-based magnetometers, including the operation of magnetometer stations, data distribution, and research using ground-based magnetometer data. and participants include members of

Below are the presentations made at the GEM-ULTIMA Forum.

== 2011 GEM-ULTIMA Forum on Ground-based Magnetometers ==

Date: Sunday, December 4, 2011

Location: Westin San Francisco Market Street

'''Session A. Community Presentations on Ground Magnetometers: Including Stations, Data, and Observations'''

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Pulkkinen_True_Ionospheric_Currents.pdf Determination of the true ionospheric currents and conductances from combined ground- and space-based observations (pdf)] by Antti Pulkkinnen (NASA GSFC, USA)

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yamazaki_by_Yumoto_SSW.pdf Relationship between SSW and Lunar-tidal ionospheric current enhancement obtained by MAGDAS data (pdf)] by Kiyohumi Yumoto for Yosuke Yamazaki (Kyushu University, Japan)

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Love_Intermagnet_1s_Data.pdf INTERMAGNET 1-sec Data (pdf)] by Jennifer Gannon for Jeffrey Love (USGS, USA)

'''Session B. ULTIMA Reports and Operation'''

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yumoto_ULTIMA_Agenda.pdf ULTIMA Welcome (pdf)] by Kiyohumi Yumoto (Kyushu University, Japan)

* Status reports from magnetometer arrays:
** AAIMNet by Brian Fraser (University of Newcastle, Australia)
** AUTUMN by Martin Connors (Athabasca University, Canada)
** CARISMA by Ian Mann (University of Alberta, Canada)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yumoto_MAGDAS_Sun_Earth_Coupling.pdf MAGDAS (pdf)] by Kiyohumi Yumoto (Kyushu University, Japan)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Chi_Update_for_McMAC_Falcon.pdf McMAC & Falcon (pdf)] by Peter Chi (UCLA, USA)
** SAMBA by Eftyhia Zesta (US Air Force, USA)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Vellante_by_Piersanti_SEGMA.pdf SEGMA (pdf)] by M. Piersanti for Massimo Vellante (University of L'Aquila, Italy)

File:ULTIMA logo final 50percent.jpg

2012-01-19T19:56:19Z

Peterchi:

GEM-ULTIMA Forum

2012-01-19T19:54:17Z

Peterchi: GEM-ULTIMA moved to GEM-ULTIMA Forum

The GEM-ULTIMA Forum is an annual meeting held during the mini-GEM Workshops in San Francisco each December. The Forum is organized jointly by [http://gem.epss.ucla.edu/mediawikiwiki/index.php/Main_Page GEM] and [http://www.serc.kyushu-u.ac.jp/ultima/ultima.html the Ultra Large Terrestrial International Magnetometer Array (ULTIMA)]. At the Forum participants discuss all issues about ground-based magnetometers, including the operation of magnetometer stations, data distribution, and research using ground-based magnetometer data. and participants include members of

Below are the presentations made at the GEM-ULTIMA Forum.

== 2011 GEM-ULTIMA Forum on Ground-based Magnetometers ==

Date: Sunday, December 4, 2011

Location: Westin San Francisco Market Street

'''Session A. Community Presentations on Ground Magnetometers: Including Stations, Data, and Observations'''

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Pulkkinen_True_Ionospheric_Currents.pdf Determination of the true ionospheric currents and conductances from combined ground- and space-based observations (pdf)] by Antti Pulkkinnen (NASA GSFC, USA)

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yamazaki_by_Yumoto_SSW.pdf Relationship between SSW and Lunar-tidal ionospheric current enhancement obtained by MAGDAS data (pdf)] by Kiyohumi Yumoto for Yosuke Yamazaki (Kyushu University, Japan)

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Love_Intermagnet_1s_Data.pdf INTERMAGNET 1-sec Data (pdf)] by Jennifer Gannon for Jeffrey Love (USGS, USA)

'''Session B. ULTIMA Reports and Operation'''

* [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yumoto_ULTIMA_Agenda.pdf ULTIMA Welcome (pdf)] by Kiyohumi Yumoto (Kyushu University, Japan)

* Status reports from magnetometer arrays:
** AAIMNet by Brian Fraser (University of Newcastle, Australia)
** AUTUMN by Martin Connors (Athabasca University, Canada)
** CARISMA by Ian Mann (University of Alberta, Canada)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Yumoto_MAGDAS_Sun_Earth_Coupling.pdf MAGDAS (pdf)] by Kiyohumi Yumoto (Kyushu University, Japan)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Chi_Update_for_McMAC_Falcon.pdf McMAC & Falcon (pdf)] by Peter Chi (UCLA, USA)
** SAMBA by Eftyhia Zesta (US Air Force, USA)
** [http://gem.epss.ucla.edu/mediawiki/GEM-ULTIMA/2011_Vellante_by_Piersanti_SEGMA.pdf SEGMA (pdf)] by M. Piersanti for Massimo Vellante (University of L'Aquila, Italy)

GEM-ULTIMA

2012-01-19T19:54:17Z

Peterchi: GEM-ULTIMA moved to GEM-ULTIMA Forum

#REDIRECT [[GEM-ULTIMA Forum]]

2012-01-19T03:58:06Z

Peterchi:

MediaWiki:Sidebar

2012-01-19T03:56:15Z

Peterchi: Test: change sidebar

Documents and Reports

2012-01-05T17:56:40Z

Peterchi: Add GEMstone Volume 21 No.1

== GEMstone ==

GEMstone is the most detailed archive of GEM activity centering on Summer Workshops. Starting from 2009 final reports from closing Focus Groups are published in separate GEMstone issues.

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol21_No1.pdf GEMstone Volume 21 No.1 - November 2011] (2011 Summer Workshop report)

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol20_No2.pdf GEMstone Volume 20 No.2 - December 2010] (2 Focus Group final/5-year reports)

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol20_No1.pdf GEMstone Volume 20 No.1 - December 2010] (2010 Summer Workshop report)

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol19_No2.pdf GEMstone Volume 19 No.2 - December 2009] (2 Focus Group final reports)

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol19_No1.pdf GEMstone Volume 19 No.1 - October 2009] (2009 Summer Workshop report)

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol18_No1.pdf GEMstone Volume 18 No.1 - October 2008]

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol17_No1.pdf GEMstone Volume 17 No.1 - December 2007]

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol16_No1.pdf GEMstone Volume 16 No.1 - April 2007]

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol15_No2.pdf GEMstone Volume 15 No.2 - October 2005]

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol15_No1.pdf GEMstone Volume 15 No.1 - September 2005]

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol14_No1.pdf GEMstone Volume 14 No.1 - October 2004]

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol13_No1.pdf GEMstone Volume 13 No.1 - September 2003]

[http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol12_No1.pdf GEMstone Volume 12 No.1 - September 2002]

== GEM History ==

* [http://gem.epss.ucla.edu/mediawiki/tutorial/2005/russell05.pdf ''GEM: Not Business As Usual'' by Chris Russell (2005)]
* GEM 7-year Report: [http://gem.epss.ucla.edu/mediawiki/pdf/report%20first.pdf Report from the First GEM Campaigns 1991 - 1997]

== GEM Campaign Reports ==

'''Boundary Layer Campaign'''
* [[Bibliography: GEM Boundary Layer Campaign 1990-1998]]

'''Tail-Substorm Campaign'''
* [http://gem.epss.ucla.edu/mediawiki/pdf/Lyons_2003%20GEM%20T-S%20FinalReport.pdf Report Upon The End Of The GEM Tail-Substorm Campaign]

'''Inner Magnetosphere Storms Campaign'''

* [http://gem.epss.ucla.edu/mediawiki/docs/plan.html Plan for GEM Inner Magnetosphere and Storms Campaign]
* 4-Year Research Strategy: [http://gem.epss.ucla.edu/mediawiki/docs/overview.html Overview] | [http://gem.epss.ucla.edu/mediawiki/docs/strategy.html 1st Draft Strategy]

'''Magnetosphere-Ionosphere Coupling Campaign'''
* [http://gem.epss.ucla.edu/mediawiki/cedar2000.html CEDAR Report 2000]
* [http://gem.epss.ucla.edu/mediawiki/gem2000.html GEM Report 2000]

'''Global Interactions Campaign'''
* [http://gem.epss.ucla.edu/mediawiki/pdf/GI%20campaign%20notes-2006.pdf GEM Global Interactions Campaign Report 2006 Snowmass Meeting]

'''GGCM Campaign'''
* [http://spacibm.rice.edu/~toffo/ggcm/GGCM_Concept_Report.html GGCM Concept Study Report]

== Links to Old Report Sites ==

* [[Campaigns and Working Group Reports]]
* [http://gem.epss.ucla.edu/mediawiki/committee.html Steering Committee Reports]
* [http://gem.epss.ucla.edu/mediawiki/student.html Student Tutorials]
* [http://gem.epss.ucla.edu/mediawiki/pdf/GEMStructure.pdf GEM Structure in 2006]

Organization and People

2011-12-13T14:59:24Z

Peterchi: Update of Focus Groups (December 2011)

== Current personnel ==

The terms in the following begin after the summer workshop of the first year and end with the summer workshop of the last year.

'''NSF Program Manager'''
* Baker, Kile

'''Steering Committee Regular Members (Voting Members)'''

* Sibeck, David (Chair, 2011 - 2013)
* Donovan, Eric (Chair-elect, 2013 - 2015)
* Wiltberger, Mike (2009 - 2012)
* MacDonald, Liz (2011 - 2013)
* Spanswick, Emma (2011 - 2013)
* Bortnik, Jacob (2012-2014)
* Research Area Coordinators (see below)
* Meeting Organizer (see below)

'''Steering Committee Liaison Members'''

* Baker, Kile (Liaison to NSF)
* Blanco-Cano, Xochitl (Liaison to Mexico)
* Rankin, Robert (Liaison to Canada)
* Fraser, Brian (Liaison to Australia)
* Hesse, Michael (Liaison to CCMC)
* Kawano, Hedi (Liaison to Japan)
* Kessel, Ramona (Liaison to NASA)
* Lavraud, Benoit (Liaison to Europe)
* Moretto, Therese (Liaison to NSF)
* Borovsky, Joe (Liaison to SHINE)
* Semeter, Josh (Liason to CEDAR)
* Singer, Howard (Liaison to NOAA)

'''Meeting Organizer'''
* Clauer, Bob (2007 -)

'''Student Represenatives'''
* Kissinger, Jennifer (2010 - 2012)
* Frissell, Nathaniel (2011 - 2013)

'''Communications Coordinator'''
* Chi, Peter (2009 - 2014)

== Research Areas ==

'''Research Area Coordinators'''

* Dayside, including boundary layers and plasma/energy entry. (Dayside)
** Berchem, Jean (2009 - 2012)
** Trattner, Karl-Heinz (2009 - 2015)
* Inner magnetosphere and storms. (IMS)
** Friedel, Reiner (2006 - 2012)
** Chan, Anthony (2009 - 2015)
* Tail, including plasma sheet and substorms. (Tail)
** Henderson, Mike (2006 - 2012)
** Kepko, Larry (2009 - 2015)
* Magnetosphere - ionosphere coupling, aurora. (MIC)
** Murr, David (2006 - 2012)
** Lotko, Bill (2011 - 2015)
* GGCM
** Sazykin, Stan (2006 - 2012)
** Merkin, Slava (2009 - 2015)

== Focus Groups ==

'''Active Focus Groups and Their Research Areas (RA)'''

* Near Earth Magnetosphere: plasma, fields, and coupling (2007 - 2012; S. Zaharia, S. Sazykin, B. Lavraud; RA: IMS, Tail)
* Plasmasphere-Magnetosphere Interactions (2008 - 2013; J. Goldstein and J. Borovsky; RA:IMS)
* Substorm Expansion Onset (2008 - 2013; V. Angelopoulos, S. Ohtani, K. Shiokawa; RA:Tail)
* Modes of Solar WInd-Magnetosphere Energy Transfer (2008 - 2013; B. McPherron, L. Kepko; RA:Tail)
* Dayside FACs and Energy Deposition (2010 - 2012; D. Knipp, G. Crowley, S. Eriksson, R. Lopez; RA:Dayside, MIC)
* Radiation Belts and Wave Modeling (2010 - 2014; Y. Shprits, S. Elkington, J. Bortnik, C. Kletzing; RA:IMS)
* The Magnetosheath (2010 - 2014; S. Petrinec, K. Nykyri; RA:Dayside)
* Metrics and Validation (2011 - 2015; M. Kuznetsova, A. Ridley, T. Guild, L. Rastaetter, H. Singer; RA:GGCM)
* The Ionospheric Source of Magnetospheric Plasma--Measuring, Modeling and Merging into the GEM GGCM (2011 - 2015; R. Schunk, R. Chappell, D. Welling; RA: MIC, GGCM)
* Scientific Magnetic Mapping & Techniques (2011 - 2015; E. Donovan, E. MacDonald, R. Millan; RA: MIC)
* Tail-Inner Magnetosphere Interactions (2012 - 2016; Pontus Brandt, John Lyon, and Frank Toffoletto; RA: Tail)
* Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures (2012 - 2016; Hui Zhang, Q.-G. Zong, Michael Ruohoniemi, and David Murr; RA: Dayside)

'''Past Focus Groups'''
* GGCM Metrics and Validation (2005 - 2010; M. Kusnetzova & A. Ridley; RA: GGCM)
* GGCM Modules and Methods (2005 - 2010; J. Dorelli, M. Shay, B. Sullivan; RA: GGCM)
* Cusp Physics (2006 - 2010; K-H. Trattner; RA: Dayside)
* Foreshock, bowshock, magnetosheath (2004 - 2009; N. Omidi; RA: Dayside)
* Dayside Magnetopause Reconnection (2004 - 2009; J. Berchem; RA: Dayside)
* MIC Electrodynamics (2003 - 2008; J. Semeter & B. Lotko; RA: MIC)
* Plasma Entry and Transport into and within the Magnetotail (2006-2011; S. Wing, J. Johnson, and A. Otto; RA: Tail)
* Space Radiation Climatology (2006 - 2011; P. O'Brien and G. Reeves; RA: IMS)
* Diffuse Auroral Precipitation (2006 - 2011; R. Thorne and J. Borovsky; RA: MIC, IMS)

GEM Focus Groups

2011-12-13T14:54:19Z

Peterchi: Update of Focus Groups (December 2011)

==Active Focus Groups==

* [[FG8. Near Earth Magnetosphere: plasma, fields, and coupling|Near Earth Magnetosphere: plasma, fields, and coupling]] (2007 - 2012, RA: IMS, Tail)
* [[FG11. Plasmasphere-Magnetosphere Interactions|Plasmasphere-Magnetosphere Interactions]] (2008 - 2013, RA: IMS)
* [[FG12. Substorm Expansion Onset: The First 10 Minutes|Substorm Expansion Onset: The First 10 Minutes]] (2008 - 2013, RA: Tail)
* [[FG13. Modes of Solar WInd-Magnetosphere Energy Transfer|Modes of Solar WInd-Magnetosphere Energy Transfer]] (2008 - 2013, RA: Tail)
* [[FG: Dayside FACs and Energy Deposition|Dayside FACs and Energy Deposition]] (2010 - 2012, RA: Dayside, MIC)
* [[FG: Radiation Belts and Wave Modeling|Radiation Belts and Wave Modeling]] (2010 - 2014, RA: IMS)
* [[FG: The Magnetosheath|The Magnetosheath]] (2010 - 2014, RA: Dayside)
* [[FG: Metrics and Validation|Metrics and Validation]] (2011 - 2015; M. Kuznetsova, A. Ridley, T. Guild, L. Rastaetter, H. Singer; RA:GGCM)
* [[FG: The Ionospheric Source of Magnetospheric Plasma|The Ionospheric Source of Magnetospheric Plasma--Measuring, Modeling and Merging into the GEM GGCM]] (2011 - 2015; R. Schunk, R. Chappell, D. Welling; RA: MIC, GGCM)
* [[FG: Scientific Magnetic Mapping & Techniques|Scientific Magnetic Mapping & Techniques]] (2011 - 2015; E. Donovan, E. MacDonald, R. Millan; RA: MIC)
* [[FG: Tail-Inner Magnetosphere Interactions|Tail-Inner Magnetosphere Interactions]] (2012 - 2016; Pontus Brandt, John Lyon, and Frank Toffoletto; RA: Tail)
* [[FG: Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures|Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures]] (2012 - 2016; Hui Zhang, Q.-G. Zong, Michael Ruohoniemi, and David Murr; RA: Dayside)

(RA: Research Area)

==Past Focus Groups==
* [[FG1. GGCM Metrics and Validation|GGCM Metrics and Validation]] (2005 - 2010, RA: GGCM)
* [[FG2. GGCM Modules and Methods|GGCM Modules and Methods]] (2005 - 2010, RA: GGCM)
* [[FG3. Foreshock, Bowshock, Magnetosheath|Foreshock, Bowshock, Magnetosheath]] (2004 - 2009, RA: Dayside)
* [[FG5. Dayside Magnetopause Reconnection|Dayside Magnetopause Reconnection]] (2004 - 2009, RA: Dayside)
* [[FG6. Cusp Physics|Cusp Physics]] (2006-2010, RA: Dayside)
* [[FG7. MIC Electrodynamics|MIC Electrodynamics]] (2003 - 2008, RA: MIC)
* [[FG4. Plasma Entry and Transport into and within the Magnetotail|Plasma Entry and Transport into and within the Magnetotail]] (2006 - 2011, RA: Tail)
* [http://virbo.org/GEMFG9 Space Radiation Climatology] (2006 - 2011, RA: IMS, see also [http://groups.google.com/group/gem-2007-space-radiation-climatology-fg9 FG9 google email group])
* [[FG10. Diffuse Auroral Precipitation|Diffuse Auroral Precipitation]] (2006 - 2011, RA: MIC, IMS)

(RA: Research Area)

Main Page

2011-12-12T18:49:45Z

Peterchi: /* What's New */

<big>'''Geospace Environment Modeling (GEM)'''</big> [[Image:NSF_Logo_color.jpg|100 px]]

Geospace Environment Modeling (GEM) is a broad-based, community-initiated research program on the physics of the Earth's magnetosphere and the coupling of the magnetosphere to the atmosphere and to the solar wind. The purpose of the GEM program is to support basic research into the dynamical and structural properties of geospace, leading to the construction of a global Geospace General Circulation Model (GGCM) with predictive capability. This GGCM model will be modularized and will complement parallel developments of magnetohydrodynamic models. The strategy for achieving GEM goals is to undertake a series of campaigns and focus groups, in both theory and observational modes, each focusing on particular aspects of the geospace environment.

The Geospace Environment Modeling (GEM) program is sponsored by [http://www.nsf.gov/div/index.jsp?div=AGS National Science Foundation (NSF) Division of Atmospheric and Geospace Sciences].

== What's New ==
* Two new Focus Groups were selected to start in Summery 2012: (1) '''''Tail-Inner Magnetosphere Interactions''''' and (2) '''''Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures'''''.
* The '''2011 GEMstone Newsletter''' has been published! Download [http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol21_No1.pdf your PDF copy here]. (''25 Nov 2011'')
* The 2011 GEM Mini-workshop was held on Sunday, December 4 at the Westin San Francisco Market Street Hotel located at 50 Third Street. [http://gem.epss.ucla.edu/mediawiki/pdf/MiniWorkshopSchedule_GEM2011.pdf '''(Detailed schedule)''']
* The tutorials presented at the 2011 CEDAR-GEM Workshop are now available at the [[GEM Tutorials|'''GEM Tutorials''']] Section. (By courtesy of Barbara Emery of CEDAR Web)

== Acknowledgment and Disclaimer ==
This GemWiki site is supported by the National Science Foundation under Grant No. 0903107. Any opinions, findings and conclusions or recommendations expressed at this web site are those of the authors and do not necessarily reflect the views of the National Science Foundation (NSF).

Main Page

2011-12-12T18:49:16Z

Peterchi:

<big>'''Geospace Environment Modeling (GEM)'''</big> [[Image:NSF_Logo_color.jpg|100 px]]

Geospace Environment Modeling (GEM) is a broad-based, community-initiated research program on the physics of the Earth's magnetosphere and the coupling of the magnetosphere to the atmosphere and to the solar wind. The purpose of the GEM program is to support basic research into the dynamical and structural properties of geospace, leading to the construction of a global Geospace General Circulation Model (GGCM) with predictive capability. This GGCM model will be modularized and will complement parallel developments of magnetohydrodynamic models. The strategy for achieving GEM goals is to undertake a series of campaigns and focus groups, in both theory and observational modes, each focusing on particular aspects of the geospace environment.

The Geospace Environment Modeling (GEM) program is sponsored by [http://www.nsf.gov/div/index.jsp?div=AGS National Science Foundation (NSF) Division of Atmospheric and Geospace Sciences].

== What's New ==
* Two new Focus Groups were selected to start in Summery 2012: (1) ''Tail-Inner Magnetosphere Interactions'' and (2) ''Transient Phenomena at the Magnetopause and Bow Shock and Their Ground Signatures''.
* The '''2011 GEMstone Newsletter''' has been published! Download [http://gem.epss.ucla.edu/mediawiki/GEMstone/GEMstone_Vol21_No1.pdf your PDF copy here]. (''25 Nov 2011'')
* The 2011 GEM Mini-workshop was held on Sunday, December 4 at the Westin San Francisco Market Street Hotel located at 50 Third Street. [http://gem.epss.ucla.edu/mediawiki/pdf/MiniWorkshopSchedule_GEM2011.pdf '''(Detailed schedule)''']
* The tutorials presented at the 2011 CEDAR-GEM Workshop are now available at the [[GEM Tutorials|'''GEM Tutorials''']] Section. (By courtesy of Barbara Emery of CEDAR Web)

== Acknowledgment and Disclaimer ==
This GemWiki site is supported by the National Science Foundation under Grant No. 0903107. Any opinions, findings and conclusions or recommendations expressed at this web site are those of the authors and do not necessarily reflect the views of the National Science Foundation (NSF).