GEM-ULTIMA Forum

The GEM-ULTIMA Forum is held annually during the mini-GEM Workshops in December. The Forum is organized jointly by GEM and the Ultra Large Terrestrial International Magnetometer Array (ULTIMA). At the Forum participants discuss all topics about ground-based magnetometers, such as the operation of magnetometer stations, data distribution, and research using ground-based magnetometer data. The Forum is open to all interested in ground-based magnetometers and their observations.

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

2015 GEM-ULTIMA Forum on Ground-based Magnetometers

Time: 9:00 AM - 12:00 PM, Sunday, December 13, 2015

Location: Holiday Inn Golden Gateway (Room Gold Rush A)

Array updates:

• AUTUMNX - Ian Schofield
• EMMA/SEGMA - Massimo Vellante (by Alfredo Del Corpo)
• GFZ and partners - Jurgen Matzka and Claudia Stolle
• GIMA - Donald Hampton
• IMAGE+ - Eija Tanskanen

Science presentations:

• FACs and substorm dynamics with global magnetometer arrays and AMPERE - Kyle Murphy
• ULF waves observed ground-based magnetometers and GPS TEC - David Murr (by Mark Engebretson)
• SuperMAG - Jesper Gjerloev (by Shin Ohtani)
• Substorm Zoo - Eija Tanskanen
• Equivalent and physical currents from magnetometer meridian chains - Martin Connors

2013 GEM-ULTIMA Forum on Ground-based Magnetometers

Time: 10:30 AM - 3:30 PM, Sunday, December 8, 2013

Location: Westin San Francisco Market Street (Cornell Room, Third Floor)

Meeting agenda

• Part A: ULTIMA Business Meeting
  • Updates from ground-based magnetometer arrays:
    • MAGDAS
    • CARISMA
    • MACCS
    • AMBER, SAMBA
    • McMAC, Falcon, THEMIS
    • SEGMA
    • DTU Space
  • Discussion: ULTIMA operation for global observations
• Part B: Science and Community Presentations
  • Jeff Love: Updates on Intermagnet Developments and USGS Projects
  • Aki Yoshikawa: Global Cowling Channel Deduced from the MAGDAS Array Observations
  • Mark Engebretson: Investigating the IMF Cone Angle Control of Pc3-4 Pulsations Observed on the Ground
  • Endawoke Yizengaw: Longitudinal Variability of Equatorial Electrodynamics Using Magnetometer Observations
  • Ian Mann: Ground-based and Van Allen Probes Observations of EMIC Waves: Spatial Extent and Ducting
  • Peter Chi: Meteorological Characteristics of Storm-time ULF Waves
  • Eftyhia Zesta: Remote Sensing of the Plasmapause Boundary Layer (PBL)

2012 GEM-ULTIMA Forum on Ground-based Magnetometers

Date: Sunday, December 2, 2012

Time: 9 AM - Noon

Location: Westin San Francisco Market Street (Civic Room, Second Floor)

Meeting agenda

• Part A: Science Prsentations on Ground Observations
  • Combined Use AMPERE and ground magnetometer data (Martin Connors)
  • Penetration of Pc5 ULF wave Power to low-L: Implications for Radiation Belt Dynamics (Ian Mann)
  • A preview of ULTIMA presenatation on "Array of ground-based magnetometer arrays for monitoring magnetospheric and ionospheric perturbations on a global scale" (Hedi Kawano)

• Part B: ULTIMA Reports and Meeting
  • DTU Space Magnetometer Array (Claudia Stolle, New Member)
  • SEGMA Array Updates (Mirko Piersanti)
  • MAGDAS Array Updates (George Maeda)
  • CARISMA Array Updates (Ian Mann)
  • MACCS Array Updates (Mark Engebretson)
  • AMBER Array and AMBER-MESAURE-SAMBA Joint Project Updates (Endawoke Yizengaw)
  • SAMBA Array Updates (Eftyhia Zesta)
  • McMAC/Falcon Array Updates (Peter Chi)
  • Updates by other ULTIMA members
  • Discussion on collaborative studies
  • Motions by Members

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

• Determination of the true ionospheric currents and conductances from combined ground- and space-based observations (pdf) by Antti Pulkkinnen (NASA GSFC, USA)

• Relationship between SSW and Lunar-tidal ionospheric current enhancement obtained by MAGDAS data (pdf) by Kiyohumi Yumoto for Yosuke Yamazaki (Kyushu University, Japan)

• INTERMAGNET 1-sec Data (pdf) by Jennifer Gannon for Jeffrey Love (USGS, USA)

Session B. ULTIMA Reports and Operation

• 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)
  • MAGDAS (pdf) by Kiyohumi Yumoto (Kyushu University, Japan)
  • McMAC & Falcon (pdf) by Peter Chi (UCLA, USA)
  • SAMBA by Eftyhia Zesta (Air Force Research Laboratory, USA)
  • SEGMA (pdf) by Mirko Piersanti for Massimo Vellante (University of L'Aquila, Italy)