Radiation Belt Electron Dymanics for the Bastille Day Magnetic Storm Event

Details Radiation Belt Electron Dymanics for the Bastille Day Magnetic Storm Event Radiation Belt Electron Dymanics for the Bastille Day Magnetic Storm Event

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sm52a20p&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SM52A-20

Physics

2720 Energetic Particles, Trapped, 2753 Numerical Modeling, 7807 Charged Particle Motion And Acceleration

Scientific paper

The largest geomagnetic storm this solar cycle occurred on July 15, 2000. The solar event on July 14 produced a solar wind speed exceeding 1000 km/s and a minimum Dst ~ -300nT magnetospheric response. The effects of this storm on the outer zone electrons in the context of the resonant acceleration processes discussed by Elkington et al1 will be examined. Results of guiding center test particle simulations using fields obtained from the Lyon-Fedder-Mobarry 3D global MHD code2, driven by solar wind parameters measured by the ACE satellite, will be analyzed and compared to magnetospheric observations. An attempt will be made to understand why the event did not produce a large increase in the electron radiation belt population when, in contrast, there was trapping of solar energetic protons. 1 Elkington, S.R., M. K. Hudson, and A. A. Chan, Acceleration of relativistic electrons via drift-resonant interaction with toroidal-mode Pc-5 oscillations, Geophys. Res. Lett., 26,3273, 1999. 2 Mobarry, C. M., J. A. Fedder, and J. G. Lyon, Equatorial plasma convection from global simulations of the Earth's magnetoshpere, J. Geophys. Res., 101,7859,1996.

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