Other
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsm41a0315m&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SM41A-0315
Other
7954 Magnetic Storms (2788), 7959 Models
Scientific paper
We report results from the global circulation model of Lyon, Fedder, and Mobarry with an embedded model of the inner magnetosphere including the plasmasphere. The combination is used to initiate large numbers of representative protons on the geosynchronous orbit L shell, to assign particle weightings, to track their subsequent trajectories in the 3D fields. This permits us to study the global circulation of plasmaspheric plumes and to compare these with Polar observations from the dayside magnetopause region. A range of events is studied from an isolated period of SBz in the solar wind, to a large storm sequence. We consider effects on circulating plasmas reaching the dayside reconnection X-line, the population of the plasma sheet with ionospheric protons, and the generation of ring current pressure from this source, compared with solar wind, polar wind, and auroral wind sources. We find that the transient plasmaspheric plume source is large in terms of total fluence, but of modest proportions in terms of contribution to the ring current. Implications of this and other results for improved space weather modeling and prediction will be discussed.
Chen Shouxin
Delcourt Dominique C.
Fedder Joel A.
Fok M. H.
Moore Thomas Earle
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