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.


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


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


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 & ALEDAS-V
  • 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): AKATSUKI Now: Status, Achievements, and Future (online)
  • 14:30-15:20 | Masahiro Takagi (Kyoto Sangyo U.): Waves in AFES-Venus?
  • 15:20-16:10 | Hideo Sagawa (Kyoto Sangyo U.): Ground-based observation of minor species in the Venus atmopshere (online)
    • 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): Exo-Venus atmosphere with the G-PCM (online)
Reception 18:00-20:00 at CPS

26th (Tue)

  • 10:00-10:50 | Ehouarn Millour (LMD): The Venus Climate Database (VCD)
  • 10:50-11:00 | Shinya Murakami (ISAS): AKATSUKI Data Summary (presented by Y.-Y. Hayashi)
  • 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
  • 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
  • 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): Update on the mesospheric sulfur dixiode situation from the Venus PCM (presented by S. Lebonnois)
    • Fugaku Tour
  • 17:20-18:10 | Pedro Machado (Lisboa U.): Transmission spectroscopy along the transit of Venus used for probing the atmosphere's upper layers and as a proxy for exoplanets atmosphere characterization (online)

27th (Wed)

  • 10:00-10:30 | Dexin Lai (USTC - LMD): Planetary-scale wave simulated in high-resolution Venus PCM (online)
  • 10:30-11:00 | Masataka Imai (U. Tokyo): Kelvin waves at the top of cloud layer observed by AKATSUKI (online)
  • 11:00-11:30 | Toru Kouyama (AIST): Long-term monitoring of Venusian atmosphere by Akatsuki LIR
  • 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): The VenSpec-U instrument on board EnVision (online)

28th (Thu)

  • 10:00-10:30 | Peng Han (USTC-LMD): Radiative transfer in the deep atmosphere
  • 10:30-11:00 | Toshiki Matsushima (Kobe U.): Implementation of the radiative transfer scheme into AFES-Venus (?)
  • 11:00-11:30 | Shinya Kuwayama (Okayama U.): Implementation of the cloud physics into AFES-Venus (?)
  • 11:30-12:00 | Guo Zhuan (U. Tokyo) Wave analysis of Venusian thermal images with radiative transfer
  • 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.): Venus Cloud Microphysics Modeling (online)

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.): Early Venus
  • 11:20-11:50 | Arihiro Kamada (Tohoku U.): Exo Planets
  • 12:05-12:55 | Takemasa Miyoshi (RIKEN): Small data assimilation
    • Lunch break
  • 14:30-15:00 | Hiroki Kashimura (Kobe U.): SCALE-GM for Venus (?)
  • 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): Modelling the SO2 variability (online)
  • 17:50-17:55 | Closing
Banquet 19:00-21:00 at Sannomiya, downtown Kobe


  • All interested participants, whether on-site or remotely, follow the two steps below to register:

    1. CPS registration

    • Those who already have CPS accounts proceed to login the CPS server and click "VenusWS20240325" in the menu on the right side of the top page to register for the conference.
    • Those who don't have CPS accounts proceed to access the application entry to obtain a CPS account for this meeting, and then follow the procedure above.

    2. ZOOM registration

    • After the above CPS registration, the ZOOM conference registration URL will be displayed, and complete it to obtain the ZOOM access URL, which will be sent before long via e-mail.
  • We would appreciate it if you could complete your application by March 15.


  • 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