JpGU-AGU Joint Meeting 2020

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P (Space and Planetary Sciences ) » P-PS Planetary Sciences

[P-PS06] Science of Venus: Venus Express, Akatsuki, and beyond

convener:Takehiko Satoh(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Kevin McGouldrick(University of Colorado Boulder), Hideo Sagawa(Kyoto Sangyo University), Thomas Widemann(Observatoire De Paris)

[PPS06-P11] Meridional distribution of CO on Venus

*Shinya Kuwayama1, George HASHIMOTO1 (1.Okayama University)

Keywords:Venus, carbon monoxide, meridional circulation

We constructed a model which calculates the meridional distribution of some minor chemical species such as CO, H2O, and H2SO4 in the Venus' atmosphere. Our model consists of chemical reactions, advection, diffusion, condensation/evaporation, and sedimentation of cloud particles. The atmospheric temperature and density profiles are fixed, and a steady one-cell structure of the meridional circulation in each hemisphere is assumed. A steady state distribution is numerically solved by using time-marching.