Space Weather

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 potentially damaging currents are a result of sudden increases in solar wind pressure and magnetic fields, but are also determined by local ground conductivity conditions. To determine where infrastructure is at greatest risk and to better understand the relationship between space weather events and induced currents in specific locations, we provide tools and analyses targeted to critical areas.