Fig. 8From: Dynamics of the terrestrial radiation belts: a review of recent results during the VarSITI (Variability of the Sun and Its Terrestrial Impact) era, 2014–2018Energetic electron intensities measured by instruments onboard SAMPEX (top) and Polar (bottom) satellites. Daily averaged fluxes spanning over a decade (1992 to 2003) are shown for 2.0 to 6.0 MeV and > 2.0 MeV electrons. The electron intensities are smoothed with a 30-day running box-car average. Also shown as a blue trace model calculated location of the plasmapause multiplied by a factor of 1.3. Figure is reproduced from Kanekal (2006)Back to article page