Integration of the Radiation Belt Environment Model Into the Space Weather Modeling Framework

Details Integration of the Radiation Belt Environment Model Into the Space Weather Modeling Framework Integration of the Radiation Belt Environment Model Into the Space Weather Modeling Framework

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsm12a..07t&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SM12A-07

Physics

2720 Energetic Particles: Trapped, 2730 Magnetosphere: Inner, 2753 Numerical Modeling, 2774 Radiation Belts

Scientific paper

We have integrated the Fok Radiation Belt Environment model (RBE) into the Space Weather Modeling Framework (SWMF). RBE is coupled to the global magnetohydrodynamics component (represented by BATSRUS) of the SWMF. The radiation belt model solves the convection-diffusion equation of the plasma in the range of 10keV to a few MeV. In stand-alone mode RBE uses Tsyganenko's empirical models for the magnetic field. In the SWMF the BATSRUS model provides the time dependent magnetic field by efficiently tracing the closed magnetic field lines and passing the geometrical and field strength information to RBE at a regular cadence. We discuss the coupling algorithm and show some preliminary results with the coupled code. We run our new coupled model for periods of steady northward and southward IMF and compare our results to the radiation belt model using an empirical magnetic field model. We also simulate the radiation belts for an event of active time period.

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