The Automatic Predictability of Super Geomagnetic Storm from Halo CMEs Associated with Large Solar Flares

Abstract

We investigate the relationship between magnetic structures of CME source regions and geomagnetic storms, in particular the super storms when the Dst index decreases below -200nT. By examining all full halo CMEs that erupted between 1996 and 2004, we selected 73 events associated with M and X-class solar flares, which have a clearly identifiable source… (More)

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