Physics
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsm51a..02s&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SM51A-02
Physics
2411 Electric Fields (2712), 2736 Magnetosphere/Ionosphere Interactions (2431), 2740 Magnetospheric Configuration And Dynamics, 2778 Ring Current, 2788 Magnetic Storms And Substorms (7954)
Scientific paper
In the inner magnetosphere, the electrodynamics of the magnetospheric and ionospheric plasmas is controlled, to a large extent, by the large-scale electric field generated by pressure gradients at the inner edge of the ring current and the plasma sheet. Kinetic ring current modeling efforts have indicated the possible importance of the pitch-angle distribution function on the ionospheric electric field distribution during ring current injection and decay during magnetic storms. In this paper, we present results from two numerical models: the Rice Convection Model (RCM), which assumes pitch-angle isotropy, and the Comprehensive Ring Current Model (CRCM), which follows evolution of the pitch-angle distribution function. By comparing simulation results for the same events, we analyze the role of the pitch-angle distribution function on the inner magnetospheric and subauroral ionospheric electric fields.
Fok M.-
Sazykin Stanislav
Spiro Robert
Toffoletto Frank
Wolf Robert
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