Fig. 14From: Dynamics of the terrestrial radiation belts: a review of recent results during the VarSITI (Variability of the Sun and Its Terrestrial Impact) era, 2014–2018Radial profiles of electron phase space density obtained from measurements by Van Allen Probe A of pitch angle-resolved energetic electrons. The panels show for two values of the second adiabatic invariant, K multiple values of PSD for μ, the first invariant as color coded lines. The numerical values are listed in the legend accompanying the figures (reproduced from Kanekal et al. (2015)Back to article page