Modeling the Radiation Belts During a Geomagnetic Storm

Details Modeling the Radiation Belts During a Geomagnetic Storm Modeling the Radiation Belts During a Geomagnetic Storm

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agusmsm72a..07g&link_type=abstract

American Geophysical Union, Spring Meeting 2009, abstract #SM72A-07

Physics

2720 Energetic Particles: Trapped, 2753 Numerical Modeling, 2774 Radiation Belts, 2788 Magnetic Storms And Substorms (7954), 2799 General Or Miscellaneous

Scientific paper

We utilize the Radiation Belt Environment (RBE) model to simulate the radiation belt electrons during a geomagnetic storm. Particularly, we focus on the relative contribution of whistler mode wave-particle interactions and radial diffusion associated with rapid changes in the magnetospheric magnetic field. In our study, the RBE model obtains a realistic magnetic field from the BATS-R-US magnetosphere model at a regular, but adjustable, cadence. We simulate the storm with and without wave particle interactions, and with different frequencies for updating the magnetic field. The impacts of the wave-particle interactions, and the rapid variations in the magnetospheric magnetic field, can then be studied. Simulation results are also extracted along various satellite trajectories for direct comparison where appropriate.

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