An unusual giant spiral arc in the polar cap region during the northward phase of a Coronal Mass Ejection

The shock arrival of an Interplanetary Coronal Mass Ejection (ICME) at ~09:50 UT on 22 November 1997 resulted in the development of an intense (D<sub><I>st</I></sub>&lt;&minus;100 nT) geomagnetic storm at Earth. In the early, quiet phase of the storm, in the sheath...

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Bibliographic Details
Main Authors: L. Rosenqvist, A. Kullen, S. Buchert
Format: Article
Language:English
Published: Copernicus Publications 2007-03-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/25/507/2007/angeo-25-507-2007.pdf