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Evolution of the atmosphere of venus
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Yung, Y. L. |
| Copyright Year | 1981 |
| Description | The photochemistry of the stratosphere of Venus was modeled using an updated and expanded chemical scheme, and the results of recent laboratory studies. The model satisfactorily accounts for the observations of CO, O2, (1) and SO2 in the stratosphere. Oxygen, derived from CO2 photolysis, is primarily consumed by CO2 recombination and oxidation of SO2 to H2SO4. Photolysis of HCl in the upper stratosphere provides a major source of odd hydrogen radicals essential for the catalytic oxidation of CO. Oxidation of SO2 by O occurs in the lower stratosphere, with the O-O bond broken by S + O2 and SO + HO2. The sensitivity of stratospheric chemistry to ambient H2 abundance was studied and the model prefers the high value (1 10 ppm) recently inferred from the Pioneer Venus ionospheric measurements. The importance of the photochemical production of S2O, (SO)2, S2, H2S2O2 and H2S2O3 is speculated. A number of previously unsuspected similarities between the chemistry of the stratospheres of Venus and the Earth, presented and discussed. |
| File Size | 2493642 |
| Page Count | 90 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810020516 |
| Archival Resource Key | ark:/13960/t50g8gr34 |
| Language | English |
| Publisher Date | 1981-06-30 |
| Access Restriction | Open |
| Subject Keyword | Lunar And Planetary Exploration Earth Atmosphere Venus Atmosphere Atmospheric Composition Photochemical Reactions Hydrogen Chlorides Atmospheric Chemistry Atmospheric Models Stratosphere Oxidation Carbon Monoxide Sulfur Oxides Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
