Organization and People

The science component of the GEM Workshops are led by a volunteer Steering Committee. To promote transparency and provide an informal guide to existing, new, and future members of the Steering Committee, a document of GEM Steering Committee Best Practices was developed. This document, updated in October 2019, is available here.

We are attempting to record past personnel here: Former Personnel

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.

Steering Committee Regular Members (Voting Members)

• Christine Gabrielse (Lin) (2024 - 2026, Chair; 2022-2024, Vice Chair)
• Allison Jaynes (2024 - 2026, Vice Chair; 2026-2028, Future Chair)
• Muhammad Fraz Bashir (2022 - 2026, At-Large-2)
• Xiangning Chu (2024 - 2028, At-Large-3)
• Mike Shumko (2023 - 2027, At-Large-4)
• Katherine Davidson (2025 - 2029, At-Large-1)

• Research Area Coordinators (see below)
• Meeting Organizer (see below)

Steering Committee Liaison Members

• Ying Zou (Liason to CEDAR)
• Joe Borovsky (Liaison to SHINE)
• Masha Kuznetsova (Liaison to CCMC)
• Reinhard Friedel (Liaison to NASA)
• Howard Singer (Liaison to NOAA)
• Shawn Young (Liaison to AFRL)
• Josh Rigler (Liaison to USGS)
• Andrew Dimmock (Liaison to Europe)
• Laura Morales (Liaison to Argentina)
• TBD (Liaison to Australia)
• John Manuel (Liaison to Canada)
• Chi Wang (Liaison to China)
• Yoshizumi Miyoshi (Liaison to ISAS, Japan)
• Junga Hwang (Liaison to Korea)
• Xochitl Blanco-Cano (Liaison to Mexico)
• Lou Lee (Liaison to Taiwan)
• Tom Elsden (Liaison to MIST/UK)
• Lutz Rastaetter (Liaison for Metrics and Validation RG)
• Bashi Ferdousi (Liaison for Machine Learning RG)

Meeting Organizers (University of Iowa and University of Minnesota)

• David Hartley (2026 - )
• Sadie Elliot (2026 - )

Student Representatives

• Erika Hathaway (2024-2026)
• Mary Smirnova (2025 - 2027)

Research Areas

Research Area Coordinators

• Solar Wind - Magnetosphere Interaction (SWMI, previously known as Dayside)
  • Tori Wilder (2022 - 2026, RAC-1A)
  • Lynn Wilson (2024 - 2028, RAC-1B)

• Magnetotail and Plasma Sheet (MPS, previously known as Tail)
  • Jiang Liu (2023 - 2027, RAC-2B)
  • Anton Artemyev (2025 - 2029, RAC-2A)

• Inner MAGnetosphere (IMAG, previously known as IMS)
  • Solene Lejosne (2023 - 2027, RAC-3B)
  • Wen Li (2025 - 2029, RAC-3A)

• Magnetosphere – Ionosphere Coupling (MIC)
  • Xiaojia Zhang (2023 - 2027, RAC-4B)
  • Kevin Pham (2025 - 2029, RAC-4A)

• Global System Modeling (GSM, previously known as GGCM)
  • Daniel Welling (2022 - 2026, RAC-5A)
  • Kareem Sorathia (2024 - 2028, RAC-5B)

Focus Groups

Please see the GEM Focus Groups Section.

2025-2026 Subcommittees

• Plenary Subcommittee
  • Fraz Bashir

• GEMEE Program
  • Fraz Bashir
  • Kareem Sorathia

Former GEM Chairs

• Adam C. Kellerman (2022-2024)
• Vania Jordanova (2020 - 2022)
• Paul Cassak (2019 - 2020)
• Jacob Bortnik (2016 - 2019)
• Mike Wiltberger (2015 - 2016)
• Eric Donovan (2013 - 2015)
• David Sibeck (2011 - 2013)
• Michael Liemohn (2009 - 2011)
• Jimmy Raeder (2006 - 2009)
• Bob Strangeway (2003 - 2006)
• Mary K. Hudson (August 1, 2000 - July 31, 2003)
• Richard Wolf (August 1, 1997 - July 31, 2000)
• Jeff Hughes (August 1, 1994 - July 31, 1997)
• Bill Lotko (August 1, 1991 - July 31, 1994)
• George Siscoe (Ended on July 31, 1991)