Simulation of Radiation Belt Dynamics Driven by Solar Wind Variations
Author | |
Abstract |
The rapid rise of relativistic electron fluxes inside geosynchronous orbit during the January 10-11, 1997, CME-driven magnetic cloud event has been simulated using a relativistic guiding center test particle code driven by out-put from a 3D global MHD simulation of the event. A comparison can be made of this event class, characterized by a moderate solar wind speed (< 600 km/s), and those commonly observed at the last solar maximum with a higher solar wind speed and shock accelerated solar energetic proton component. Relativistic electron flux increase occurred over several hours for the January event, during a period of prolonged southward IMF Bz more rapidly than the 1-2 day delay typical of flux increases driven by solar wind high speed stream interactions. Simulations of the January event captured the flux
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Year of Publication |
1999
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Volume |
109
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Number of Pages |
171-182
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Publisher |
American Geophysical Union
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City |
Washington, D. C.
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URL |
http://onlinelibrary.wiley.com/doi/10.1029/GM109p0171/summary
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DOI |
10.1029/GM10910.1029/GM109p0171
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