Outer Radiation Belt Flux and Phase Space Density Response to Sheath Regions: Van Allen Probes and GPS Observations

Abstract

GPS measurements confirm 6-hour RBSP outer belt electron flux response to ICMEdriven sheaths at 6-hour and 30-minute timescales • PSD response shows that electron energization is associated only with geoeffective sheaths but loss occurs in response to all sheaths • Impacts in electron flux and PSD presented here are related to sheaths, and the lost electrons are replenished during the early ejecta