Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsm52b..11f&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SM52B-11
Physics
2720 Energetic Particles, Trapped, 2730 Magnetosphere: Inner, 2752 Mhd Waves And Instabilities
Scientific paper
Based on radiation belt diffusion theory, a 1-dimensional radial diffusion code has been developed to better understand relativistic electron transport during magnetic storms. We use radial diffusion coefficients as a function of ULF wave power at resonant electron drift frequencies and a time-dependent outer boundary location. The ULF wave power is obtained from global MHD simulations and the outer boundary location is based on drift shell tracing in the Tsyganenko 2001 magnetic field model. The Tsyganenko 2001 field model is also used for Roederer L* calculations. We have studied the September 1998 storm using this diffusion model, and results are compared with phase-space density radial profiles obtained from MHD test-particle simulations and with GOES satellite flux measurements.
Chan Anthony A.
Elkington Scot R.
Fei Yingwei
Wiltberger Michael J.
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