Physics
Scientific paper
Jul 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978stin...8016011s&link_type=abstract
Annual Project, Jul. 1977 - Jul. 1978 Atmospheric and Environmental Research, Inc., Cambridge, MA.
Physics
Aeronomy, Atmospheric Chemistry, Photochemical Reactions, Venus Atmosphere, Atmospheric Models, Chlorine, Hydrogen, Oxygen, Sulfur, Sulfuric Acid, Venus Clouds
Scientific paper
A model for the Venus atmosphere involving photochemistry of oxygen, hydrogen, chlorine and sulfur species is presented. Sulfur reaction schemes and hydrogen and chlorine reaction schemes were included. The impact of sulfur on the oxygen budget and the subsequent production of H2SO4 molecules for the Venus cloud deck were explored. A major new reaction scheme for production of H2SO4 molecules involving sulfur and oxygen chemistry was established shown to dominate over the odd hydrogen scheme proposed earlier. The efficiency of the scheme in formation of H2SO4 is only about 50%, with the remaining sulfur residing in SO2 molecules. The calculated downward flux of H2SO4 may be sufficient to maintain a steady state sulfuric acid cloud if the resident time of H2SO4 droplets in the cloud is as long as a few years. If however, the resident time is half a year or shorter, additional chemistry capable of more efficient conversion of SO2 to SO3 is required.
Smith William Hayden
Sze Nien-Dak
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