Dynamics of the Plasmapause Location After SSC

Details Dynamics of the Plasmapause Location After SSC Dynamics of the Plasmapause Location After SSC

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsm52a0537m&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #SM52A-0537

Physics

2700 Magnetospheric Physics

Scientific paper

We study the radial motion of the plasmapause in response to an SSC. The plasmapause is identified as the inner most steep radial density gradient using the CRRES plasma wave receiver data. CRRES data from thirty SSC intervals are used in this statistical study. The 10-hour CRRES orbit allows us to determine the plasmapause dynamics at two local time sectors every 10 hours. We find that the plasmapause location generally moves both inward and outward on average +/- 1 Re prior to an SSC on this timescale. In the dawn local time sector, a systematic inward shift of about 1 Re is observed within the first 10 hours following the SSC. The motion then returns to pre-SSC variability. In the dusk sector a systematic outward shift of nearly 2 Re is observed within the first 10 hours following an SSC before it returns to pre-SSC variability.

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