| 人工植被和流动沙丘近地面层湍流通量的计算 |
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| 引用本文： | 刘树华,辛国君,陈荷生,冯金朝,刘立超.人工植被和流动沙丘近地面层湍流通量的计算[J].气象,1993,19(9):9-13. |
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| 作者姓名： | 刘树华 辛国君 陈荷生 冯金朝 刘立超 |
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| 作者单位： | 北京大学地球物理系 100871
(刘树华，辛国君)，中国科学院兰州沙漠研究所 730000
(陈荷生，冯金朝)，中国科学院兰州沙漠研究所 730000(刘立超) |
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| 基金项目： | 北京大学预研基金，中科院沙坡头沙漠研究开放站基金 |
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| 摘 要： | 提出了由Ｂｕｓｉｎｇｅｒ建议的无量纲廓线通用函数形式的近地面层稳定度参数ζ的相似方程分析解。代替了以往采用数值迭代法求ζ，并应用于沙漠人工植被和裸露流动沙丘上的实例资料分析。采用目前广泛应用的空气动力学方法，分别计算了动量和热量交换系数，感热和潜热通量，并由波文比－能量平衡方法进行了验证。结果表明：采用Ｂｕｓｉｎｇｅｒ无量纲通量廓线关系形式的近地面层稳定度参数ζ的相似方程分析解，代替以往惯用的数值
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| 关 键 词： | 人工植被 沙丘 湍流通量 近地面层 |
Comparison of the Turbulent Flux Calculation Methods of the Artificial Vegetation on Sand Dunes |
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| Liu Shuhua Am Guojun.Comparison of the Turbulent Flux Calculation Methods of the Artificial Vegetation on Sand Dunes[J].Meteorological Monthly,1993,19(9):9-13. |
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| Authors: | Liu Shuhua Am Guojun |
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| Institution: | Liu Shuhua Am Guojun Department of Geophysics,Peking University,100871Chen Hesheng Feng Jinzhao Liu LichaoInstitute of Desert Research,Academia Sinica,730000 |
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| Abstract: | The analytical solutions of surface layer Monin-Obukhov stability parameter similarity equations are presented for the nondimensional profile functional forms put forward by Businger et al. For stable and unstable atmospheric conditions,exact analytical solutions of gradient Richardson number Ri are obtained. The proposed analytical solutions can replace the costly numerical iterative method, the least-square methods of estimated stability parameters, and the aerodynamic method for calculating surface turbulent fluxes. The sensible heat and latent heat fluxes were compared each other with the Bowen ratio and aerodynamic methods to be calculated. |
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| Keywords: | flux profile relationship similarity equation analytical solution sensible heat and latent heat fluxes |
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