A comprehensive magnetohydrodynamic model of the Venus ionosphere

Details A comprehensive magnetohydrodynamic model of the Venus ionosphere A comprehensive magnetohydrodynamic model of the Venus ionosphere

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9611083s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 96, July 1, 1991, p. 11,083-11,095.

Physics

16

Magnetohydrodynamics, Planetary Ionospheres, Venus Atmosphere, Atmospheric Models, Pioneer Venus Spacecraft, Solar Planetary Interactions

Scientific paper

The MHD Venus ionospheric model of Shinegawa and Cravens (1988) is improved here by including the energy equations for ions and electrons in a self-consistent manner. This new model reproduces observed electron density and magnetic field profiles very well, while the basic MHD process of the Venus ionosphere remain virtually unchanged. The results indicate that including energetics does not significantly alter the density and magnetic field profiles. Under unmagnetized conditions, heat fluxes for both ions and electrons must be imposed to reproduce the observed plasma temperature profiles. A heat source for the ions is probably present at higher altitudes in the magnetized ionosphere. Heating processes do not play a significant role in the dynamics at low altitudes.

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