modeling of ocs in the lower atmosphere of venus
DESCRIPTION
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 [email protected] DPS Meeting Oct 7-12, 2007. Important Processes in the Atmosphere of Venus. Catalytic Chemical Cycles - PowerPoint PPT PresentationTRANSCRIPT
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
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 [email protected]
DPS 39 MeetingOct 7-12, 2007
Acknowledgements
• NASA and ESA• P. Drossart• R. L. Shia• K. Baines• D. Crisp