Japan Geoscience Union Meeting 2023

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[E] Online Poster

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

[P-PS04] Advancing the science of Venus in the golden age of exploration

Thu. May 25, 2023 9:00 AM - 10:30 AM Online Poster Zoom Room (2) (Online Poster)

convener:Takehiko Satoh(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), George HASHIMOTO(Department of Earth Sciences, Okayama University), Moa Persson(Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan), Kevin McGouldrick(University of Colorado Boulder)



On-site poster schedule(2023/5/23 17:15-18:45)

9:00 AM - 10:30 AM

[PPS04-P04] Distribution of minor constituents in Venus' atmosphere calculated by an atmospheric general circulation model

*KUWAYAMA Shinya1, George L HASHIMOTO1, Hiroki Kashimura2, Norihiko Sugimoto3, Masahiro Takagi4 (1.Department of Earth Sciences, Okayama University, 2.Department of Earth Sciences, Kobe University, 3.Department of Law, Keio University, 4.Department of Earth Sciences, Kyoto Sangyo University)

Keywords:Venus, general circulation, material circulation

Venus is covered with thick clouds of sulfuric acid droplets, and the atmospheric motion below the cloud tops is hidden from observation. However, some minor constituents in the lower atmosphere are observed from above the clouds. Since distributions of materials are affected by advection, we may infer the atmospheric circulation from the distribution of minor constituents. In this study, we have developed an atmospheric general circulation model with chemistry in Venus' atmosphere, and calculated three-dimensional distributions of CO, H2O, and H2SO4. The general circulation in Venus' atmosphere is examined based on a comparison of the calculated distribution and observation.