Low-altitude distribution of radiation belt electrons

Details Low-altitude distribution of radiation belt electrons Low-altitude distribution of radiation belt electrons

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004jgra..10911209s&link_type=abstract

Journal of Geophysical Research, Volume 109, Issue A11, CiteID A11209

Physics

2

Magnetospheric Physics: Energetic Particles, Trapped, Magnetospheric Physics: Energetic Particles, Precipitating, Magnetospheric Physics: Numerical Modeling, Magnetospheric Physics: Plasma Waves And Instabilities

Scientific paper

A numerical simulation of the low-altitude electron radiation belt is described. It includes dependences on the electrons' bounce and drift phases, equatorial pitch angle, and kinetic energy in the range of ~1 to several MeV at L = 3.5. Physical processes in addition to the adiabatic electron motion are pitch angle diffusion and backscattering from a realistic model atmosphere. Quasi-linear diffusion coefficients are calculated from a model of the whistler mode plasmaspheric hiss wave intensity. Comparisons of the simulation results with electron data from a low-altitude satellite show that the model accounts for the main features of the electron spatial distribution during selected periods of differing geomagnetic activity.

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