GP24E:
Geomagnetically Induced Currents (GIC) and Geomagnetic Perturbations: Space Weather and Ground Effects II (Half Session)

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Session ID#: 17673

Session Description:
Geomagnetically Induced Currents (GICs) at the surface of the Earth are caused by the interaction between geomagnetic disturbances in the solar wind-magnetosphere-ionosphere coupling system, and deep Earth conductivity structures. GICs can arise in long conductors, such as the high voltage bulk power transmission system in the United States, and have severe and detrimental impacts on our nation’s critical infrastructure. This session covers the interdisciplinary hazard science behind GICs, including magnetic field specification and prediction, conductivity studies, and monitoring techniques.  To connect the science to engineering and operational impacts, we also include studies on the direct effects of GICs on power grid operations and utility assets.
Primary Convener:  Jennifer L Gannon, Computational Physics Inc., Boulder, United States
Conveners:  Peter J Chi, University of California Los Angeles, Los Angeles, CA, United States, Christopher C Balch, NOAA Boulder, Boulder, CO, United States and Paul Bedrosian, USGS, Denver, CO, United States
Chairs:  Carol A Finn, USGS Geologic Hazards Science Center, Golden, CO, United States and Zhonghua Xu, Virginia Polytechnic Institute and State University, Blacksburg, United States
OSPA Liaison:  Peter J Chi, University of California Los Angeles, Los Angeles, CA, United States
Co-Organized with:
SPA-Magnetospheric Physics, and SPA-Magnetospheric Physics

Cross-Listed:
  • NH - Natural Hazards
  • SA - SPA-Aeronomy
  • SM - SPA-Magnetospheric Physics

Proposed Co-Organized Session with:
  • NH - Natural Hazards
  • SA - SPA-Aeronomy
  • SM - SPA-Magnetospheric Physics
Index Terms:

1515 Geomagnetic induction [GEOMAGNETISM AND PALEOMAGNETISM]
2799 General or miscellaneous [MAGNETOSPHERIC PHYSICS]
4313 Extreme events [NATURAL HAZARDS]
7904 Geomagnetically induced currents [SPACE WEATHER]

Abstracts Submitted to this Session:

Ps6 Perturbations: Conjugate Relationships on the Ground and with Space (150490)
Martin G Connors, Athabasca University, Athabasca, AB, Canada
Improving Ionospheric Source Models for Imaging Upper Mantle/Transition Zone Resistivity (167466)
Gary D Egbert, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Patrick Alken, University of Colorado Boulder, CIRES, Boulder, CO, United States, Astrid I Maute, University of Colorado, Boulder, CIRES, Boulder, United States and Arthur D Richmond, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States
Eliminating large-scale magnetospheric current perturbations from long-term geomagnetic observatory data (123487)
Leonie Pick, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany and Monika C Korte, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Section 2.3 – Geomagnetism, Potsdam, Germany
Simulation of Theoretical Most-Extreme Geomagnetic Sudden Commencements (178933)
Daniel T Welling, University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, Jeffrey J Love, USGS Central Region Offices Denver, Denver, CO, United States, Michael James Wiltberger, National Center for Atmospheric Research, Boulder, United States and Erin Joshua Rigler, USGS Geomagnetism Program, Denver, CO, United States

See more of: SPA-Magnetospheric Physics