Empirical models of the electron temperature and density in the nightside Venus ionosphere

Details Empirical models of the electron temperature and density in the nightside Venus ionosphere Empirical models of the electron temperature and density in the nightside Venus ionosphere

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979sci...205..102b&link_type=abstract

Science, vol. 205, July 6, 1979, p. 102-105.

Physics

3

Atmospheric Models, Electron Energy, Ionospheric Electron Density, Planetary Ionospheres, Venus Atmosphere, Night Sky, Oxygen Ions, Pioneer Venus Spacecraft, Solar Position, Vertical Distribution, Zenith, Ionopause, Models, Electrons, Density, Ionosphere, Temperatures, Nightside, Venus, Flux, Solar Wind, Pioneer Venus, Venera 9, Venera 10, Flow, Transport, Oxygen, Ions

Scientific paper

Empirical models of the electron temperature and density of the late afternoon and nightside Venus ionosphere based on the Pioneer Venus measurements are presented. They describe the ionosphere conditions near 18 deg latitude between 150 and 700 km altitude for solar zenith angles of 80 to 180 deg, with a 10-fold decrease beyond 90 deg and a gradual decrease between 120 and 180 deg. The nightside electron density profile, the ion transport process, and electron precipitation are discussed. The high nocturnal temperatures and the well defined nightside ionopause suggest that energetic processes occur across the top of the entire nightside ionosphere, maintaining elevated temperatures.

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