Modeling the ionosphere in the dayside cusp and polar cap regions during magnetospheric substorms

Details Modeling the ionosphere in the dayside cusp and polar cap regions during magnetospheric substorms Modeling the ionosphere in the dayside cusp and polar cap regions during magnetospheric substorms

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ge%26ae..29...38a&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 29, Jan. 1989, p. 38-44. In Russian.

Mathematics

Atmospheric Models, Geomagnetism, Magnetospheric Instability, Polar Substorms, Daytime, Polar Caps, Polar Cusps

Scientific paper

A mathematical model is developed to study the restructuring of the space-time structure of the ionosphere the dayside cusp and polar cap regions in response to substorm-related temporal variations in the electric field of magnetospheric convection, the location of the precipitation region, and the spectrum of energetic electrons. Variations of the polar peak and tongue of ionization are analyzed for winter conditions. Increases in electron density during substorms are shown to arise which travel in the antisolar direction in the polar cap; these increases are connected with variations in the precipitating electron flux in the cusp region.

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