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Modeling of OCS in the Lower Atmosphere of Venus
Yuk L. YungM. C. Liang, X. Jiang, C. Lee, B. Bezard and E. Marq
California Institute of [email protected]
DPS MeetingOct 7-12, 2007
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Important Processes in the Atmosphere of Venus
• Catalytic Chemical Cycles
• Heterogeneous Chemistry
• Middle Atmosphere Circulation
• OCS as tracers of chemistry and dynamics
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Venus model description
• Two-dimensional Caltech/JPL KINETICS chemical transport model
• Solve continuity equation for 24 species with ~200 chemical reactions (subset of Mills’)
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Role of circulation
• Affect the upward flux of OCS from the surface
• Reduce OCS abundances at high latitudes
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No heterogeneous sink
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Heterogeneous sink by aerosols
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Modeling the Distribution of OCS in the Lower Atmosphere of Venus
Yuk L. YungM. C. Liang, X. Jiang, C. Lee, B. Bezard and E. Marq
California Institute of [email protected]
DPS 39 MeetingOct 7-12, 2007
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Acknowledgements
• NASA and ESA• P. Drossart• R. L. Shia• K. Baines• D. Crisp