| 非单一水平均匀下垫面空气动力学参数的确定 |
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| 引用本文： | 张宏Shen 陈家宜.非单一水平均匀下垫面空气动力学参数的确定[J].应用气象学报,1997,8(3):310-315. |
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| 作者姓名： | 张宏Shen 陈家宜 |
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| 作者单位： | 1.北京大学地球物理系 |
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| 摘 要： | 文章介绍了一种利用单一高度风速、温度湍流资料确定空气动力学参数的方法。该方法无须进行风速廓线的测量，可以应用于非单一水平均匀下垫面和非中性层结，避免了主观性。用该方法计算了北京城市北部边缘325 m气象塔附近的零值位移d和地表粗糙 z0。结果表明:该处下垫面零值位移d和地表粗糙度z0与风向有很强的依赖关系，与气象塔周围的城市建设相对应。
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| 关 键 词： | 空气动力学参数 湍流观测 下垫面 |
Estimation of Aerodynamic Parameters on Non-single Horizontal Homogeneous Underlying Surface |
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| Zhang Hongsheng,Chen Jiayi.Estimation of Aerodynamic Parameters on Non-single Horizontal Homogeneous Underlying Surface[J].Quarterly Journal of Applied Meteorology,1997,8(3):310-315. |
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| Authors: | Zhang Hongsheng Chen Jiayi |
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| Institution: | 1.(Department of Geophysics, Peking University, Beijing 100871) |
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| Abstract: | The method to estimate aerodynamic parameters with only velocity and temperature fluctuation data is applied to non homogeneous surfaces and non neutral stratification. The turbulence data measured in Beijing Meteorological Tower which is 325 m high are used to determine the zero plane displacement d and surface roughness z 0. It is shown that the d and z 0 are considerable dependent on wind direction. |
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| Keywords: | Aerodynamic parameter Turbulent measurement Underlying |
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