Two-Dimensional Phenomenological Model of Ring Current Dynamics in the Earth’s Magnetosphere

Geomagnetism and Aeronomy - The dynamics of ring current protons with variable boundary conditions in the inner magnetosphere during a magnetic storm has been studied. The spatial and temporal...     

Effect of magnetospheric convection on the energy distribution of protons from the Earth radiation belts

The structure of energetic protons from the Earth radiation belts, averaged for a magnetically quiet period, can be explained by the equilibrium between the radial diffusion transfer, loss due to Coulomb collisions, charge exchange with ambient neutral hydrogen of the geocorona, and drift of protons under the influence of magnetospheric convection. By transfer we mean diffusion owing to fluctuations related to substorms in the large-scale electric and magnetic fields. Equatorially mirroring protons with energies of 1–750 keV have been considered, and the theoretical predictions of the proton energy spectra for L = 1.0−6.6 have been compared with the observations on several satellites.