Effects of Storm-time EMIC Wave on Radiation Belt Electrons

Electromagnetic ion cyclotron (EMIC) waves have long been known to have significant effects on ring current (RC) ions and outer radiation belt relativistic electron through non-adiabatic particle heating and pitch-angle scattering. It is widely accepted that pitch-angle scattering by the EMIC waves is one of the mechanisms that responsible to the energetic electrons losses during the main phase of a magnetic storm. We investigate the effect of EMIC waves on the radiation belt relativistic electrons using the Radiation Belt Environment (RBE) model for radiation belt electrons. In this study, we adopt the quasi-linear approach to calculate the electron pitch angle diffusion coefficients for EMIC waves. Together with the EMIC wave intensity and distribution information, we can study the effects of EMIC waves on the temporal variation of the electron flux.