HR: 11:50h
AN: SM12A-07    [Abstracts]
TI: Integration of the Radiation Belt Environment Model Into the Space Weather Modeling Framework
AU: * Toth, G
EM: gtoth@umich.edu
AF: CSEM, University of Michigan, 2455 Hayward, Ann Arbor, MI 48109, United States
AU: Glocer, A
EM: aglocer@umich.edu
AF: CSEM, University of Michigan, 2455 Hayward, Ann Arbor, MI 48109, United States
AU: Fok, M
EM: mei-ching.h.fok@nasa.gov
AF: NASA Goddard Space Flight Center, Code 673, Building 21, Room 248, Greenbelt, MD 20771, United States
AU: Gombosi, T
EM: tamas@umich.edu
AF: CSEM, University of Michigan, 2455 Hayward, Ann Arbor, MI 48109, United States
AB: 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.
DE: 2720 Energetic particles: trapped
DE: 2730 Magnetosphere: inner
DE: 2753 Numerical modeling
DE: 2774 Radiation belts
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting