Storm time equatorial belt - an ``image'' of RC behavior

Details Storm time equatorial belt - an ``image'' of RC behavior Storm time equatorial belt - an ``image'' of RC behavior

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30b..24s&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 2, pp. 24-1, CiteID 1052, DOI 10.1029/2002GL015636

Physics

8

Magnetospheric Physics: Ring Current, Magnetospheric Physics: Energetic Particles, Trapped, Magnetospheric Physics: Magnetosphere-Inner, Magnetospheric Physics: Storms And Substorms

Scientific paper

During geomagnetic storms a well defined belt of trapped protons and ENAs (energetic neutral atoms) is observed around geomagnetic equator at low L-values. Their source is RC (ring current) protons existing at larger L-values. Through charge exchange with the geocorona RC protons become ENAs and if subjected to a new charge exchange become trapped protons. From low latitude particle observations at four different local times we follow; the RC injection region, the drift of RC-particles through the evening/afternoon into the morning sector, the RC-asymmetry and convection loss to the dayside during the storm initial and main phase, and its development into a symmetric RC in the recovery phase of the storm.

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