Multiple-Satellite Observations of Plasma Transport Into the Inner Magnetosphere

Details Multiple-Satellite Observations of Plasma Transport Into the Inner Magnetosphere Multiple-Satellite Observations of Plasma Transport Into the Inner Magnetosphere

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm22b..04t&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM22B-04

Physics

2700 Magnetospheric Physics, 2730 Magnetosphere: Inner, 2760 Plasma Convection, 2784 Solar Wind/Magnetosphere Interactions

Scientific paper

In an average sense, the transport of fresh plasma sheet material from the geomagnetic tail region into the inner magnetosphere has been shown to be well ordered by the level of geomagnetic activity, as measured by Kp, and is consistent with the expectations for a simple, large-scale convection electric field, the strength of which is related to Kp. On a finer time scale, however, it appears that this transport occurs on an episodic basis, with fairly sudden convection surges depositing material in the inner magnetosphere. Observations of plasma sheet electron spectra at multiple locations in geosynchronous orbit show that these surges are global (i.e., they extend over distances of several Earth radii) and that they propagate from the near-midnight region toward both the dawn and dusk regions of the inner magnetosphere. These multi-point geosynchronous observations will be compared with simultaneous solar wind observations and other measures of the convection development to help illuminate the processes by which fresh material is transported into the near-Earth magnetosphere.

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