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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 2/3
Ann. Geophys., 12, 113–120, 1994
https://doi.org/10.1007/s00585-994-0113-5
© European Geosciences Union 1994
Ann. Geophys., 12, 113–120, 1994
https://doi.org/10.1007/s00585-994-0113-5
© European Geosciences Union 1994

  31 Jan 1994

31 Jan 1994

The solar causes of major geomagnetic storms

S. Bravo and A. L. Rivera S. Bravo and A. L. Rivera

Abstract. In this paper we reanalyse the set of ten major geomagnetic storms which occurred between August 1978 and December 1979. We relate them to the characteristics of the solar wind disturbances which caused them and the solar sources of such disturbances as tracked by means of interplanetary scintillation. It seems to us that the shock causing the sudden commencement and the plasma behind it with an important long-lasting Bz south component (Bz.

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