Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm31c..03c&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SM31C-03
Physics
[2716] Magnetospheric Physics / Energetic Particles: Precipitating, [2774] Magnetospheric Physics / Radiation Belts, [2794] Magnetospheric Physics / Instruments And Techniques
Scientific paper
The dynamics of the Earth's radiation belts are governed by the interplay between the various source and loss terms. Electron microbursts are believed to be a significant form of radiation belt losses. Consequently, characterizing the global loss due to microbursts is a still unresolved question. Taking advantage of the length and continuity of SAMPEX observations, we present a study of the statistical distribution of important characteristics of microburst events including frequency, intensity, location, and electron loss. Characterizing the different loss levels during bursts in both an absolute and a relative scale has implications for both instrument design and microburst detection, as well as for assessing the total electron loss on a global scale. Previous work, such as that of O'Brien et al., [2004] has attempted to characterize the overall losses during individual storms and relate it to the overall relativistic electron population in the belts. We probe into the fluxes present in the individual bursts to provide a picture of what the microburst spectrum looks like on both an individual event scale and in the larger global picture. Furthermore, we demonstrate how these results can be applied to mission planning in the context of the FIREBIRD CubeSat.
Crew A. B.
Spence Harlan E.
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