HR: 15:25h
AN: SM33B-08    [Abstracts]
TI: Compressional Wave Power in the Magnetosphere during Periods of Enhanced Radial Diffusion in the Inner Magnetosphere
AU: * Cartwright, M L
EM: mcartwri@ucla.edu
AF: University of California Los Angeles, Institute of Geophysics and Planetary Physics, 405 Hilgard Avenue, Los Angeles, CA 90095-1567 United States
AU: Russell, C T
EM: ctrussell@igpp.ucla.edu
AF: University of California Los Angeles, Institute of Geophysics and Planetary Physics, 405 Hilgard Avenue, Los Angeles, CA 90095-1567 United States
AB: Compression fluctuations of the magnetospheric magnetic field travel across magnetic field lines with little attenuation. Thus when the solar wind dynamic pressure is highly fluctuating, the magnetosphere fills with magnetic fluctuations. Examining the Polar magnetic records during the October/November 2003 storms we find that power levels in the frequency bands that resonate with the drift motion of inner zone relativistic electrons increased up to nearly 2000 times the power at quiet times. This activity correlated with enhanced radial diffusion and the formation of a new inner zone electron belt at energies above 1 MeV. Polar magnetic data are also examined at other times when lower rates of diffusion were observed.
DE: 2720 Energetic particles, trapped
DE: 2752 MHD waves and instabilities
DE: 2784 Solar wind/magnetosphere interactions
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting