Acta Scientiarum Naturalium Universitatis Pekinensis

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A Barotropic Quasi-geostrophic Model with Large-scale Orography, Friction and Heating

CHEN Jiong, LIU Shikuo   

  1. Department of Geophysics, Peking University, Beijing, 100871
  • Received:1997-06-12 Online:1999-01-20 Published:1999-01-20



  1. 北京大学地球物理学系,北京,100871

Abstract: Starting from a barotropic model equations including large-scale orography, friction and heat factor, by means of scale analysis and small parameter method, then a barotropic quasi-geostrophic model with large-scale orography, friction and heating is obtained. It is shown that this equation is a basic one which is used to study the influence of the Tibetan Plateau on the large-scale flow in the atmosphere. If the dynamic effect, friction and heat effect of large-scale orography are disregarded, this model will degenerate to the general barotropic quasi-geostrophic one.

Key words: scale analysis, small parameter method, linearization, barotropic quasi-geostrophic model

摘要: 从包含大地形、摩擦及加热作用的正压模式方程组出发,通过尺度分析、小参数展开和线性化等方法,导出一个含大地形、摩擦及加热作用的准地转正压模式。该模式是我们今后研究青藏高原的基本出发方程。如果不考虑地形的动力作用、摩擦及加热作用,该模式就退化为通常的准地转正压模式。

关键词: 尺度分析, 小参数展开, 线性化, 准地转正压模式

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