Physics – Plasma Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm11b1712r&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SM11B-1712
Physics
Plasma Physics
[7833] Space Plasma Physics / Mathematical And Numerical Techniques, [7859] Space Plasma Physics / Transport Processes, [7867] Space Plasma Physics / Wave/Particle Interactions
Scientific paper
Trapped electron dynamics in the radiation belts has been studied at CEA for satellite protection purposes since Réveillé et al. (JGR 106, 2001) and based on the pioneering models of Roberts (Rev. Geophys. 7, 1969) and Lyons (JGR 77, 1972). The different modeling choices we made for simplifying the quasi-linear diffusion coefficients are motivated by the reduction of the computational cost of operational codes. Approximations on the dispersion relation, the resonant condition, and on the group velocity expression will be presented for high energy electrons (>5 MeV) interacting with HISS waves at low L number. The harmonic and wave-normal angle numbers are also reduced to their minimum following recent methods (Albert JGR 110, 2005 and JGR 112, 2007) and based on our analysis. Numerical results will be presented and compared to recent literature and observation results to analyze the model accuracy.
Mourenas D.
Ripoll Jaime
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