Mar. '40 Superstorm - #Geoelectromagnetic #Hazard & #Impacts On #American #Communication & #Power #Infrastructure
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tinyurl.com/mr36t5as
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#spaceweather #history #spatialanalysis #geomagnetism #risk #CME #coronalmassejection #electricity #utilities #transmission #power #energy
#USGS #CIRES
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