Computer Science
Scientific paper
Aug 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976geokh.....1135f&link_type=abstract
Geokhimiia, Aug. 1976, p. 1135-1150. In Russian.
Computer Science
Atmospheric Chemistry, Atmospheric Models, Geochemistry, Planetary Composition, Troposphere, Venus Atmosphere, Venus Clouds, Chemical Equilibrium, Organic Compounds, Photochemical Reactions, Thermodynamic Properties, Venus Probes, Vertical Distribution
Scientific paper
A geochemical model for the Venusian troposphere is proposed on the basis of a theoretical generalization of planetary-probe data and a quantitative thermodynamic analysis of the vertical equilibrium distribution of compounds containing O, H, C, N, and S. The basic feature of the model is the delineation of three geochemical tropospheric zones. The upper zone (from about 52 to 65 km) is characterized mainly by photochemical processes and probably contains sulfuric acid clouds. The lower zone (from ground level to about 36 km) is dominated by chemical processes in a homogeneous gaseous medium probably under equilibrium conditions. The intermediate zone (from about 36 to 52 km) of nonequilibrium chemical and photochemical processes is characterized by a complex and unstable gaseous and condensate composition in the cloud layer. It is suggested that ammonium salts, crystalline sulfur, and complex organic compounds may form in the intermediate zone.
Florenskii K. P.
Nikolaeva Ol'ga V.
Volkov V. P.
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