Friday

Outer radiation belt fluxes (L>3) are highly variable and can be directly modulated by solar wind driving conditions. In particular, the compression of the day-side magnetopause leads to particle orbits bifurcating and becoming trapped at high-latitudes. This is analogous to altering the mirror points of a magnetic bottle and particles drifting through the outer magnetosphere consequently undergo a combination of ballistic and diffusive changes to their second and third adiabatic invariants. In this study, we use combined global-MHD and test-particle simulations to constrain this phenomenon for a range of quiet and disturbed magnetospheric conditions. After quantifying the instantaneous transport rates we implement a full AE-8 radiation belt distribution and examine its long term evolution and the consequences for predicting fluxes within the dynamic outer radiation belt.