Modeling of OCS in the Lower Atmosphere of Venus
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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 [email protected] DPS Meeting Oct 7-12, 2007. Important Processes in the Atmosphere of Venus. Catalytic Chemical Cycles

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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

[email protected]

DPS Meeting

Oct 7-12, 2007


Important processes in the atmosphere of venus
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
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
Role of circulation

  • Affect the upward flux of OCS from the surface

  • Reduce OCS abundances at high latitudes




Modeling the Distribution 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 39 Meeting

Oct 7-12, 2007


Acknowledgements
Acknowledgements of Venus

  • NASA and ESA

  • P. Drossart

  • R. L. Shia

  • K. Baines

  • D. Crisp


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