Acta Scientiarum Naturalium Universitatis Pekinensis

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Numerical Simulation of the Heat and Moisture Fluxes at Different Underlying Surface

LIU Shuhua   

  1. Laboratory for Severe Storm Research, Department of Geophysics, Peking University, Beijing, 100871
  • Received:1995-06-28 Online:1997-01-20 Published:1997-01-20



  1. 北京大学地球物理系,北京,100871

Abstract: A numerical model is developed for simulating microclimate of bare soil, which is incorporated in one-dimensional boundary layer model. The sensitivity of the scheme to several soil physical parameters is evaluated. Numerical simulated results indicate that the most important soil characteristic parameter is the soil moisture, and next is the surface albedo, which regulates the heat balance and the strength of the fluxes of heat and moisture between thermosphere and the ground.

Key words: soil-atmosphere interface, numerical simulation, soil physical parameters, sensible heat and latent heat fluxes

摘要: 发展了一个裸露土壤的参数化数值计算方法,检验了土壤物理参数对土壤-大气界面热通量和水汽通量计算的敏感性。结果表明,土壤湿度是最重要的土壤特征参数,它直接控制着地表面与大气之间水、热通量的输送强度和热量平衡。数值计算参数化方法可应用于中尺度气象和气候模式。

关键词: 土壤-大气界面, 数值模拟, 土壤物理参数, 感热和潜热通量

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