Numerical modeling for venus atmosphere based on AFES (atmospheric GCM for the earth simulator)

Norihiko Sugimoto, Masahiro Takagi, Yoshihisa Matsuda, Yoshiyuki O. Takahashi, Masaki Ishiwatari, Yoshi Yuki Hayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In order to elucidate phenomena of Venus atmosphere, an atmospheric general circulation model (AGCM) for Venus is being developed on the basis of AFES (AGCM For the Earth Simulator). As a first step toward high resolution numerical simulation with realistic physical processes, we investigate unstable modes on the condition of super-rotation by nonlinear numerical simulation with simplified physical processes. At initial state zonal super-rotation is assumed to exist. We use the relaxation forcing of the meridional temperature gradient to maintain the zonal flow. In the time evolution of this experimental 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. We discuss resolution dependency of the results.

Original languageEnglish
Title of host publicationSystem Simulation and Scientific Computing - International Conference, ICSC 2012, Proceedings
Pages70-78
Number of pages9
EditionPART 2
DOIs
Publication statusPublished - 2012 Dec 1
EventAsia Simulation Conference and the International Conference on System Simulation and Scientific Computing 2012, AsiaSim and ICSC 2012 - Shanghai, China
Duration: 2012 Oct 272012 Oct 30

Publication series

NameCommunications in Computer and Information Science
NumberPART 2
Volume327 CCIS
ISSN (Print)1865-0929

Other

OtherAsia Simulation Conference and the International Conference on System Simulation and Scientific Computing 2012, AsiaSim and ICSC 2012
CountryChina
CityShanghai
Period12/10/2712/10/30

Keywords

  • Baroclinic instability
  • Earth Simulator
  • Geophysical fluid dynamics
  • Numerical modeling
  • Planetary sciences
  • Venus atmosphere

ASJC Scopus subject areas

  • Computer Science(all)
  • Mathematics(all)

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