Sastri, J. H; Yumoto, K; Rao, J. V. S. V; Ikeda, A
(American Geophysical Union, 2008-05)
We present event-specific observational evidence for the prevalence of a summer-winter hemisphere asymmetry of the preliminary reverse impulse (PRI) of geomagnetic storm sudden commencements (SSCs) at midlatitudes of the ...