H2O-H2SO4 System in Venus' Clouds and OCS, CO, and H2SO4 Profiles in Venus' Troposphere
Abstract
A coupled problem of diffusion and condensation is solved for the H2SO4-H2O system in Venus' cloud layer. The position of the lower cloud boundary, profiles of the H2O and H2SO vapor mixing ratios, and of the H2O/H2SO4 ratio of sulfuric acid aerosol and its flux are calculated as functions of the column photochemical production rate of sulfuric acid. Variations of the lower cloud boundary are considered. Our basic model, which is constrained to yield fH2O(30km) = 30 ppm, predicts the position of the lower cloud boundary at 48.4 km coinciding with the mean Pioneer Venus value, the peak H2SO4 mixing ratio of 5.4 ppm, and the H2SO4 production rate phiH2SO4 = 2.2 x 1012 cm-2s-1.
- Publication:
-
Lunar and Planetary Science Conference
- Pub Date:
- March 1994
- Bibcode:
- 1994LPI....25..747K
- Keywords:
-
- Boundaries;
- Cloud Cover;
- Photochemical Reactions;
- Sulfuric Acid;
- Troposphere;
- Venus Clouds;
- Water Vapor;
- Aerosols;
- Diffusion;
- Mixing Ratios;
- Pioneer Venus Spacecraft;
- Lunar and Planetary Exploration