A Physical Model of the Radiation Belt

A data-driven physical model of the radiation belt has been activated, based on the kinetic model previously developed by Fok and coworkers. This model calculates radiation belt electron fluxes from 10 keV to 4 MeV in the inner magnetosphere. The model takes into account realistic, time-varying magnetic field and considers effects of wave-particle interactions. The only inputs to the model are upstream solar wind and concurrent Dst data. With the real-time solar wind data supplied by NOAA and Dst data from the Kyoto University, the model is running in real time to provide now-casting of the radiation belt environment. In this paper, the model logic and formulation are discussed. The model results for several storm simulations are presented. The paper concludes with discussion of further improvements of the model to better achieve additional LWS goals.