Physics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9613997r&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Aug. 1, 1991, p. 13,997-14,008. Research supported by DOE.
Physics
51
Earth Magnetosphere, Energetic Particles, Geosynchronous Orbits, Ion Injection, Magnetic Field Configurations, Atmospheric Models, Charged Particles, Ionospheric Drift, Magnetic Storms, Runge-Kutta Method
Scientific paper
A numerical model is employed to describe the motion of impulsively injected energetic particles in geosynchronous orbit about the earth in the magnetic field. Solutions of the analytic expressions for the bounce-average gradient and curvature drift in a model magnetic field are found under varying conditions including Kp level, pitch angle, magnetic field orientation, and drift shell location. The model is applied to the observational data of a substorm injection event, and the field model is found to be an effective way to represent the average configurations of the real field under certain conditions. The predictions of the injection times from three different satellites agree to within about 1 minute, demonstrating the effectiveness of the model field in this situation. A 'periphery' outside the cental injection is described by the model as well, where ions or electrons can be found with dispersionless signatures.
Belian Richard D.
Fritz Teresa A.
Reeves Geoff D.
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