Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jgr....83.1133c&link_type=abstract
Journal of Geophysical Research, vol. 83, Mar. 1, 1978, p. 1133-1140.
Astronomy and Astrophysics
Astronomy
8
Atmospheric Chemistry, Atmospheric Models, Ionospheric Composition, Planetary Ionospheres, Venus Atmosphere, Astronomical Models, Atmospheric Temperature, Ionospheric Electron Density, Ionospheric Heating, Ionospheric Ion Density, Reaction Kinetics, Venus, Ionosphere, Atmosphere, Models
Scientific paper
Coupled time-dependent continuity-momentum and energy balance equations for the Venus ionosphere were simultaneously solved for CO2(+), O2(+), O(+), He(+), and H(+) densities and electron and ion temperatures for an altitude range of 120-500 km. Values of the solar zenith angle varied from 0 deg (subsolar point) to 90 deg (terminator). The calculations include the horizontal bulk transport of ions by neutral winds but not the horizontal diffusion. The two-stream photoelectron transport method was used to find the heating rates for the ambient electrons. Different boundary conditions were considered, and a nightside ionosphere was calculated. The results of these model calculations are in good agreement with measurements in the region of maximum electron density. Characteristics of topside and nightside densities and temperatures are discussed.
Chen Ruo-Hang
Nagy Andrew F.
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