Baroclinic Modes in the Atmosphere on Venus Simulated by AFES

• SUGIMOTO Norihiko

  Research and Education Center for Natural Sciences, Department of Physics, Keio University

• TAKAGI Masahiro

  Faculty of Science, Kyoto Sangyo University

• MATSUDA Yoshihisa

  Department of Astronomy and Earth Science, Tokyo Gakugei University

• TAKAHASHI Yoshiyuki O.

  Department of Earth and Planetary Sciences, Kobe University

• ISHIWATARI Masaki

  Department of Cosmosciences, Hokkaido Universityn

• HAYASHI Yoshi-Yuki

  Department of Earth and Planetary Sciences, Kobe University

Abstract

An atmospheric general circulation model (AGCM) for Venus is being developed on the basis of AFES (AGCM For the Earth Simulator) in order to study atmospheric phenomena of Venus by the numerical simulation with high resolution. Super-rotation is assumed to exist at initial state and to be maintained by the relaxation forcing due to the meridional temperature gradient. In the time evolution of this setting, baroclinic modes grow in the cloud layer with small static stability. The structures of unstable modes are similar to those obtained in the linear stability analysis initially, but changed by the nonlinear interactions in the later stage. Meridional transport of momentum and heat by these unstable modes is discussed.

Journal

• Theoretical and Applied Mechanics Japan

  Theoretical and Applied Mechanics Japan 61 (0), 11-21, 2013

  National Committee for IUTAM

Details

• CRID: 1390001205211681664
• NII Article ID: 130004463834
• DOI: 10.11345/nctam.61.11
• ISSN: 13494244
• ISSN: 13480693
• Text Lang: en
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed