Numerical simulations of the magnetospheric convection including the effects of electron precipitation

Details Numerical simulations of the magnetospheric convection including the effects of electron precipitation Numerical simulations of the magnetospheric convection including the effects of electron precipitation

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.8343f&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Sept. 1, 1985, p. 8343-8360.

Physics

24

Computerized Simulation, Convective Flow, Electron Precipitation, Magnetospheric Electron Density, Solar Terrestrial Interactions, Atmospheric Models, Auroral Zones, Ionospheric Conductivity, Magnetic Field Configurations, Plasma-Electromagnetic Interaction

Scientific paper

A self-consistent model of the transport of hot electrons in the earth's magnetosphere and of their precipitation in the auroral ionosphere was developed. The model was used to simulate the evolution from an initial state in which there are no hot electrons in the inner magnetosphere to a steady state situation in which electrons penetrate into the inner magnetosphere from the tail and are transported onward until they precipitate into the ionosphere. The formation of a belt of electron precipitation in the auroral zones is very well reproduced by the model. The electrostatic equipotentials show the classical two vortices of magnetospheric convection covering the morningside and the eveningside of each ionospheric hemisphere. The model reproduces the shape of the plasmapause well, but underestimates its absolute size for high levels of magnetic activity.

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