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An overview of the impact of the January 10–11 1997 magnetic cloud on the magnetosphere via global MHD simulation
Author(s) -
Goodrich C. C.,
Lyon J. G.,
Wiltberger M.,
Lopez R. E.,
Papadopoulos K.
Publication year - 1998
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/98gl01159
Subject(s) - geosynchronous orbit , ionosphere , magnetic cloud , magnetopause , magnetohydrodynamics , geomagnetic storm , solar wind , geophysics , magnetosphere , physics , coronal mass ejection , earth's magnetic field , substorm , atmospheric sciences , plasma , magnetic field , astronomy , satellite , quantum mechanics
The results of a 3D MHD simulation of the January 10–11, 1997 geomagnetic storm are presented. The simulation results agree well with ground‐based and geosynchronous observations. The 28 hours modeled by the simulation include the magnetic cloud responsible for the storm, the shock preceding the cloud, and the dense plasma filament following it. The simulation shows that during the period of southward IMF ionospheric activity was strongly correlated to the solar wind density. The arrival of the plasma filament during northward IMF pushed the dayside magnetopause well within geosynchronous orbit, but generated little ionospheric activity. It appears that n sw as well as the orientation of B sw plays a role in controlling the intensity of ionospheric and magnetospheric activity.