Workshop on Venus and other related atmospheres (2024.03.25-29)

Purpose of the Workshop

The purpose of this workshop is to share knowledge and deepen understandings of the atmopsheres of Venus as well as other planets through discussions on various aspects of the atmospheres of Venus and others with the recent developments of researches including observations and analyses by the Venus Climate Orbiter AKATSUKI and other spacecrafts, theoretical considerations, model simulations, and data assimilation experiments.

Date

• From March 25th (Mon) to 29th (Fri), 2024

Venue

• Seminar room at Center for Planetary Science, Kobe U. (Access) and On-line by ZOOM

Program

Presentations marked with * or ** require a CPS password. Those marked with ** are for participants only.

25th (Mon)

• 09:55-10:00 | Yoshi-Yuki Hayashi (Kobe U.): Opening
• 10:00-10:50 | Sebastien Lebonnois (LMD): Introduction of the Venus PCM (formerly IPSL Venus GCM)
• 10:50-11:20 | Norihiko Sugimoto (Keio U.): Introduction of AFES-Venus (Venus GCM) and ALEDAS-V (AFES LETKF Data Assimilation System for Venus) *
• 11:20-11:50 | Yukiko Fujisawa (Keio U.): Data assimilation with AKATSUKI winds and temperature*
• 11:50-12:20 | Nobumasa Komori (Keio U.): Rossby wave and its impact on the Venus atmosphere evaluated by observing system simulation experiment*
  • Lunch break
• 14:00-14:30 | Takehiko Satoh (ISAS) (online): AKATSUKI Now: Status, Achievements, and Future
• 14:30-15:20 | Masahiro Takagi (Kyoto Sangyo U.): Waves and quasi-periodic variation of the equatorial jet in the Venusian atmosphere *
• 15:20-16:10 | Hideo Sagawa (Kyoto Sangyo U.) (online): Ground-based observations of minor species in the Venusian atmosphere **
  • break
• 16:20-17:10 | Jianyu (Richard) Liang (RIKEN): Analyzing the instabilities in the Venus atmosphere using Bred Vectors
• 17:10-18:00 | Gabriella Gilli (IAA) (online): Exo-Venus atmosphere with the G-PCM

Reception 18:00-20:00 at CPS

26th (Tue)

• 10:00-10:50 | Ehouarn Millour (LMD): The Venus Climate Database VCD version 2.3 (and 3.0)
• 10:50-11:00 | Shinya Murakami (ISAS) (presented by Y.-Y. Hayashi): Summary of AKATSUKI data and ALEDAS-V data
• 11:00-11:30 | Hiroki Ando (Kyoto Sangyo U.): Long-term variation of temperature and H2SO4 gas mixing ratio by the Venus Express and Akatsuki radio occultation measurements ** (PDF only)
• 11:30-12:20 | Antoine Martinez (LMD): Intercomparison between Venus Thermospheric models
  • Lunch break
• 14:00-14:50 | Takeshi Imamura (U. Tokyo): Wave-induced cloud formation on Venus **
• 14:50-15:20 | Katsuyuki Noguchi (Nara W.U.): Derivation of vertical profiles of sulfur dioxide (SO2) in the Venus cloud layer by the Akatsuki radio occultation measurements **
• 15:20-16:10 | Aurelien Stolzenbach (IAA) (presented by S. Lebonnois): SO2 stability issue in the Venus PCM: What's not working
  • Fugaku Tour
• 17:20-18:10 | Pedro Machado (Lisboa U.) (online): Transmission spectroscopy along the transit of Venus used for probing the atmosphere's upper layers and as a proxy for exoplanets atmosphere characterization *

27th (Wed)

• 10:00-10:30 | Dexin Lai (USTC - LMD) (online): Planetary-scale wave simulated in high-resolution Venus PCM **
• 10:30-11:00 | Masataka Imai (U. Tokyo) (online): Kelvin waves at the top of cloud layer observed by AKATSUKI **
• 11:00-11:30 | Toru Kouyama (AIST): Long-term monitoring of Venusian atmosphere by Akatsuki LIR - Focusing on thermal-tides: Periodic variation in diurnal-tide? **
• 11:30-12:00 | Anzu Asumi (U. Tokyo): A study on the climatology of the Martian atmospheric general circulation and the role of unresolved waves using reanalysis data **
• 12:00-12:30 | Kazunori Ogohara (Kyoto Sangyo U.): Cloud trains associated with mountain lee waves on Mars, 11 Mars Years observations
  • Lunch break
  • Free Discussion
• 18:00-18:30 | Emmanuel Marcq (LATMOS) (online): The VenSpec-U instrument on board EnVision

28th (Thu)

• 10:00-10:30 | Peng Han (USTC-LMD): Radiative transfer improvements in the Venus PCM
• 10:30-11:00 | Toshiki Matsushima (Kobe U.): Dynamical and thermodynamical structure in cloud layer simulated by a GCM with correlated-k distribution radiative transfer model *
• 11:00-11:30 | Shinya Kuwayama (Okayama U.): Chemical species in the Venus atmosphere calculated by a GCM with chemistry and cloud microphysics **
• 11:30-12:00 | Guo Zhuan (U. Tokyo): Characteristics of Venusian gravity waves and thermal tides inferred from thermal infrared cloud images *
• 12:00-12:30 | Takeshi Enomoto (Kyoto U.): A new dynamical core using radial basis functions *
  • Lunch break
• 14:00-14:30 | Hou Chengze (U. Tokyo): Hydraulic jumps and cloud formation on Mars
• 14:30-15:20 | Maxence Lefevre (LATMOS): Mesoscale modelling of the Venus atmosphere: From the surface to the clouds *
• 15:20-15:50 | Tatsuro Matsui (U. Tokyo): Evolution of small-scale cloud morphology **
• 15:50-16:20 | Miyu Sugiura (U. Tokyo): Variations of tropopause height and gravity waves in the Venusian polar atmosphere **
  • break
• 16:50-17:40 | Hiroki Karyu (Tohoku U.) (online): One-dimensional Microphysics Model of Venusian Clouds from 40 to 100 km

29th (Fri)

• 10:00-10:50 | Takeshi Horinouchi (Hokkaido U.): Long-term variability of the superrotation and planetary-scale waves at around Venusian cloud top
• 10:50-11:20 | Takeshi Kuroda (Tohoku U.): Possible habitability of early Venus: Climate validation using a GCM **
• 11:20-11:50 | Arihiro Kamada (Tohoku U.): The climate of TRAPPIST-1e using global climate model MIROC *
• 12:05-12:55 | Takemasa Miyoshi (RIKEN): Small data assimilation
  • Lunch break
• 14:30-15:00 | Hiroki Kashimura (Kobe U.): Global non-hydrostatic simulation of the Venus atmosphere *
• 15:00-15:30 | Nicolas Streel (LATMOS): Update on NO nightglow and preliminary microphysics results lookup
• 15:30-16:00 | Shin-ichi Takehiro (RIMS): Study of the superrotation of Titan's stratosphere using a general circulation model with simple radiative processes
  • break
• 17:00-17:50 | Franck Lefevre (LATMOS) (online): Modelling the SO2 variability
• 17:50-17:55 | Closing

Banquet 19:00-21:00 at Sannomiya, downtown Kobe

Photo

Group photos

Staffs

• Yukiko Fujisawa, Hiroki Kashimura, George Hashimoto, Yoshi-Yuki Hayashi, Takeshi Horinouchi, Takeshi Imamura, Toshiki Matsushima, Norihiko Sugimoto, Sebastien Lebonnois (program organization)
• CPS secretariat: Yoshie Yamaguchi, Chika Matsumoto, Miwako Ikebe

Co-organized by

• AKATSUKI Science Team
• Wakusei Taiki Kenkyu-kai (WTK; Reseach Association on Planetary Atmospheres)
• Center for Planetary Science (CPS)
• Grants-in-Aid for Scientific Research (KAKENHI) 19H05605 "Comprehensive picture of atmospheric circulation of Venus revealed by AKATSUKI data assimilation"