Physics
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....9512069c&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 95, Aug. 1, 1990, p. 12069-12074. Research supported by the Lockheed Inde
Physics
1
Dynamic Models, Electron Distribution, Outer Radiation Belt, Scatha Satellite, Temporal Distribution, Computer Techniques, Diffusion Coefficient, Electron Flux Density, Energetic Particles, Flux Vector Splitting, Magnetopause
Scientific paper
It is shown that the general solution to a simple form of the simultaneous bimodal (radial and pitch angle) diffusion equation can represent the SCATHA outer belt electron distribution to a high degree of accuracy for periods up to about 10 hours. The data representation requires diffusion parameters that are in agreement with all previous experimental and theoretical determinations of such diffusion coefficients. Such a representation satisfies the basic requirements toward the dynanic modeling of the outer electron radiation belts for L less than 7 at quiet and moderate geomagnetic conditions. For L about 7 the representation has difficulties with 'butterfly' distributions that may signify energetic electron encounters with the magnetopause or severe shell splitting.
Chiu Yam T.
Nightingale Richard W.
Rinaldi M. A.
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