Statistics – Methodology
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm33a1755a&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SM33A-1755
Statistics
Methodology
2774 Radiation Belts, 7867 Wave/Particle Interactions (2483, 6984), 7954 Magnetic Storms (2788)
Scientific paper
A well-known study of the October 9, 1990 magnetic storm [Brautigam and Albert, 2000] found that both decreases and increases of < 1 MeV electrons could be explained by radial diffusion, but that increases of > 1 MeV electrons required an additional mechanism. Energization by enhanced chorus waves was suggested. Since then, statistical models of various waves have been developed, quasilinear diffusion coefficients have been computed, and several simple simulations of electron dynamics have been performed. Here, the methodology of that earlier study -- the use of adiabatic invariants, activity-dependent diffusion coefficients, and time-dependent scaling of outer boundary fluxes -- is augmented with (coupled) pitch angle and energy diffusion by cyclotron-resonant waves, notably chorus. Results will be compared to CRRES data, and to the earlier results.
Albert Jay M.
Brautigam D. H.
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