Geomagnetism

Geomagnetically Induced Currents

Geomagnetically-induced currents (GICs) flowing along electric power-transmission systems and other electrically-conducting infrastructure are produced by a naturally induced geo-electric field during geomagnetic disturbances. These currents can cause widespread interruptions of electric power and communications.

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Date published: July 18, 2018
Status: Active

Overview

Geomagnetically-induced currents (GICs) flowing along electric power-transmission systems and other electrically-conducting infrastructure are produced by a naturally induced geo-electric field during geomagnetic disturbances.