Physics
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsm21a..04a&link_type=abstract
American Geophysical Union, Spring Meeting 2002, abstract #SM21A-04
Physics
2730 Magnetosphere: Inner, 2753 Numerical Modeling, 2768 Plasmasphere, 2778 Ring Current
Scientific paper
During a geomagnetic storm on 24 May 2000, the IMAGE Extreme Ultraviolet (EUV) camera observed a plasmaspheric density trough in the evening sector at L-values inside the plasmapause. Forward modeling of this feature has indicated that plasmaspheric densities beyond the outer wall of the trough are well below model expectations. This diminished plasma condition suggests the presence of an erosion process due to the interaction of the plasmasphere with ring current plasmas. We present an overview of EUV, energetic neutral atom (ENA), and Far Ultraviolet (FUV) camera observations associated with the plasmaspheric density trough of 24 May 2000, as well as forward modeling evidence of the existence of a plasmaspheric erosion process during this period. FUV proton aurora image analysis, deconvolution of ENA observations, and ring current modeling are then presented in an effort to associate the observed erosion with coupling between the plasmasphere and ring-current plasmas.
Adrian Mark L.
Chang Sandy
Gallagher Dennis L.
Green James L.
Khazanov George V.
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