A Long-lived Enhancement of >30 keV Electron Fluxes at Very Low L-values

Details A Long-lived Enhancement of >30 keV Electron Fluxes at Very Low L-values A Long-lived Enhancement of >30 keV Electron Fluxes at Very Low L-values

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsm41c0584e&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SM41C-0584

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2720 Energetic Particles, Trapped, 2730 Magnetosphere: Inner

Scientific paper

Beginning in May, 2003 and continuing through the summer, the NOAA/POES satellites have observed the >30 keV trapped electron fluxes at L-values between 1.18 and 1.22 elevated by about a factor of 100 over their normal intensities. At lower L-values the electron fluxes have displayed dramatic (factors of 1000 and more), but short lived, intensity increases. We hypothesize that solar wind/magnetospheric activity, especially the storm of May 29, greatly enhanced the energetic electron population at L-values above 1.18 where losses to the atmosphere are low. Continued magnetospheric activity during the summer transported electrons from that reservoir inward in L thus producing large intensity enhancements on drift shells that intersect the atmosphere where the electrons are quickly lost. NOAA/POES observations complemented with data from other spacecraft supporting this hypothesis will be presented.

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