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Modeling of OCS in the Lower Atmosphere of Venus. Yuk L. Yung M. C. Liang, X. Jiang, C. Lee, B. Bezard and E. Marq California Institute of Technology yly@gps.caltech.edu DPS Meeting Oct 7-12, 2007. Important Processes in the Atmosphere of Venus. Catalytic Chemical Cycles - PowerPoint PPT Presentation
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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 Technologyyly@gps.caltech.edu
DPS MeetingOct 7-12, 2007
Important Processes in the Atmosphere of Venus
• Catalytic Chemical Cycles
• Heterogeneous Chemistry
• Middle Atmosphere Circulation
• OCS as tracers of chemistry and dynamics
Venus model description
• Two-dimensional Caltech/JPL KINETICS chemical transport model
• Solve continuity equation for 24 species with ~200 chemical reactions (subset of Mills’)
Role of circulation
• Affect the upward flux of OCS from the surface
• Reduce OCS abundances at high latitudes
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 Technologyyly@gps.caltech.edu
DPS 39 MeetingOct 7-12, 2007
Acknowledgements
• NASA and ESA• P. Drossart• R. L. Shia• K. Baines• D. Crisp
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