A two-dimensional numerical simulation of Martian atmospheric convection : comparison with a one-dimensional model with parameterized convection

• ODAKA,Masatsugu

  Graduate School of Mathematical Sciences, University of Tokyo

• NAKAJIMA,Kensuke

  Department of Earth and Planetary Sciences, Kyushu University

• ISHIWATARI,Masaki

  Graduate School of Environmental Earth Science, Hokkaido University

• HAYASHI,YoshiYuki

  Division of Earth and Planetary Sciences, Hokkaido University

Bibliographic Information

Other Title

• F222 火星大気放射対流の数値計算 : 鉛直 1 次元モデルとの比較

Abstract

Numerical simulation of Martian atmospheric convection under dust-free condition is performed by use of a 2-dimensional (2D) anelastic atmospheric model. The result of 2D simulation is compered with that of a 1-dimensional (1D) model where the convection is parameterized as vertical diffusion. Treatment of physical processes other than the convection are same in the two models. The 2D model simulation with diurnal change of surface temperature shows that vertical wind velocity reaches 30m/sec and horizontal wind velocity exceeds 20m/sec. The vertical wind velocity is by an order of magnitude larger than that in the 1D model diagnosed from the simulated vertical diffusion coefficient. These results suggest that dust injection to Martian atmosphere can be accomplished by the convective wind superposed on large scale wind.

Journal

• 日本流体力学会年会講演論文集

  日本流体力学会年会講演論文集 2000 399-400, 2000-07-25

  日本流体力学会

Details

• CRID: 1543950420075783168
• NII Article ID: 110003886746
• NII Book ID: AA11567941
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10920795
• Text Lang: ja
• Data Source:
  • NDL-Digital
  • CiNii Articles