Cross‐ Coherence of the Outer Radiation Belt During Storms and the Role of the Plasmapause

The high energy electron population in Earth's outer radiation belt is extremely variable, changing by multiple orders of magnitude on timescales that vary from under an hour to several weeks. These changes are typically linked geomagnetic activity such as storms and substorms. In this study, we seek understand how coherent the across all radial distances, order provide a spatial insight into apparent global variations. We do calculating correlation between fluxes different measured PET instrument aboard SAMPEX spacecraft for times associated with 15 large storms. Our results show during these times, variations 0.63 MeV flux outside minimum plasmapause location also inside location, when present. However, little those plasmapause. During storm recovery possibly main phases, regardless due rapid decrease, followed increase .