GP23D:
Geomagnetically Induced Currents (GIC) and Geomagnetic Perturbations: Space Weather and Ground Effects I

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Session ID#: 17668

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:  Jennifer L Gannon, Computational Physics Inc., Boulder, United States, Peter J Chi, University of California Los Angeles, Los Angeles, CA, United States and Mark J. Engebretson, Augsburg University, Physics, Minneapolis, 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:

Remote Monitoring of the Plasma Mass Density in the Inner Magnetosphere using Field Line Resonances detected at the European Magnetometer Network EMMA (Invited) (134695)
Massimo Vellante1, Alfredo Del Corpo1, Balazs Heilig2, Jan Reda3, Ermanno Pietropaolo1, Anders Moller Jorgensen4 and Janos Lichtenberger5, (1)University of L'Aquila, Department of Physical and Chemical Sciences, L'Aquila, Italy, (2)Geological and Geophysical Institute of Hungary, Tihany, Hungary, (3)Institute of Geophysics Polish Academy of Sciences, Warszawa, Poland, (4)New Mexico Institute of Mining and Technology, Electrical Engineering Department, Socorro, NM, United States, (5)Eotvos University, Budapest, Hungary
Methodology for Time-Domain Estimation of Storm-Time Electric Fields Using the 3D Earth Impedance (Invited) (159794)
Anna Kelbert, USGS Geological Hazards Science Center, Geomagnetism Program, Golden, CO, United States, Christopher C Balch, NOAA Boulder, Boulder, CO, United States, Antti A Pulkkinen, NASA Goddard Space Flight Center, Heliophysics Science Division, Greenbelt, MD, United States, Gary D Egbert, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Jeffrey J Love, USGS Central Region Offices Denver, Denver, CO, United States, Erin Joshua Rigler, USGS Geomagnetism Program, Denver, CO, United States and Ikuko Fujii, Organization Not Listed, Washington, DC, United States
Frequency domain and full waveform time domain inversion of ground based magnetometer, electrometer and incoherent scattering radar arrays to image strongly heterogenous 3-D Earth structure, ionospheric structure, and to predict the intensity of GICs in the power grid (Invited) (120828)
Adam Schultz1, Naoto Imamura2, L Roy Bonner IV2 and Russell B Cosgrove3, (1)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States, (2)Oregon State University, Corvallis, OR, United States, (3)SRI International San Luis Obispo, San Luis Obispo, CA, United States
NASA LWS Institute GIC Working Group: GIC science, engineering and applications readiness (159003)
Antti A Pulkkinen, NASA Goddard Space Flight Center, Heliophysics Science Division, Greenbelt, MD, United States, Alan W P Thomson, British Geological Survey, Edinburgh, United Kingdom and Emanuel Bernabeu, PJM Interconnection, Audubon, PA, United States
FDTD applied to GICs at ocean-continent boundaries (186465)
Santosh Pokhrel, Bach Nguyen and Jamesina J Simpson, University of Utah, Electrical and Computer Engineering, Salt Lake City, UT, United States
Modeling of GIC Impacts in Different Time Scales, and Validation with Measurement Data (185867)
Komal Shetye1, Adam Birchfield1, Thomas J Overbye1 and Jennifer L Gannon2, (1)University of Illinois at Urbana Champaign, Urbana, IL, United States, (2)Computational Physics Inc., Boulder, United States
Suppression of Adverse Effects of GIC Using Controlled Variable Grounding Resistor (144919)
Ahmed Abuhussein and Mohd. Hasan Ali, University of Memphis, Memphis, TN, United States

See more of: SPA-Magnetospheric Physics