Whistler-mode waves modify the high-energy electron slot region and the outer radiation belt

A global quasi-linear diffusion model of electrons is established by using the whistler-mode wave amplitude distribution model, the electron density distribution model and the IGRF10 magnetic field model in 1 < L < 7 region. The numerical results reveal that the variation of plasmapause location changes the electron loss region controlled by whistler-mode hiss and acceleration region controlled by whistler-mode chorus through changing electron density and wave intensity under different geomagnetic conditions. The variation of the electron loss region is consistent with the variation of the slot region, and meanwhile the variation of the electron acceleration region is consistent with the variation of the outer radiation belt, suggesting that variations of electron diffusion regions by whistler-mode waves cause the structure-variations (including size and spatial location) of the slot region and the outer radiation belt. During the recovery phase of a great storm, for electrons with certain energy, as their loss region controlled by hiss disappears, the inner radiation belt may connect with the outer radiation belt together completely.