Evaluating the relationship between strong geomagnetic storms and electric grid failures in Poland using the geoelectric field as a GIC proxy | Journal of Space Weather and Space Climate

Topical Issue - Geomagnetic Storms and Substorms: a Geomagnetically Induced Current perspective

Open Access

Fig. 1

Linear regression of the annual percentage rate of EGFs from groups DEF in January 2010–July 2014 (circles, left axis) and yearly changes of sunspot number (orange squares, right axis).

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