| 城市下垫面空气动力学参数的估算 |
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| 引用本文： | 高志球,卞林根,逯昌贵,陆龙骅,王金星,汪瑛.城市下垫面空气动力学参数的估算[J].应用气象学报,2002,13(Z1):26-33. |
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| 作者姓名： | 高志球 卞林根 逯昌贵 陆龙骅 王金星 汪瑛 |
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| 作者单位： | 中国气象科学研究院,北京,100081 |
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| 基金项目： | 本文由《国家重点基础研究发展规划》项目:首都北京及周边地区大气、水、土环境污染机理与调控原理(项目编号:G1999045700)资助. |
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| 摘 要： | 为了定量描述北京城市下垫面的空气动力学特征,为模式提供准确的下垫面参数.利用气象塔大气湍流观测资料,结合Martano(2000)由单层超声风速、温度资料估算非均匀下垫面空气动力学参数的方法,计算了中国科学院大气物理研究所气象塔附近的下垫面空气动力粗糙度z0和零平面位移d,即z0为1.75 m和d为40.12 m.该结果与前人研究成果的比较结果表明最近的8年内,该处的零平面位移和空气动力粗糙度明显增大,这与该塔周围城市建设状况吻合.
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| 关 键 词： | 湍流观测 空气动力学粗糙度 零平面位移 北京城市下垫面 |
| 修稿时间： | 2001年8月27日 |
ESTIMATION OF AERODYNAMIC PARAMETERS IN URBAN AREAS |
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| Gao Zhiqiu,Bian Lingen,Lu Changgui,Lu Longhua,Wang Jinxing,Wang Ying.ESTIMATION OF AERODYNAMIC PARAMETERS IN URBAN AREAS[J].Quarterly Journal of Applied Meteorology,2002,13(Z1):26-33. |
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| Authors: | Gao Zhiqiu Bian Lingen Lu Changgui Lu Longhua Wang Jinxing Wang Ying |
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| Abstract: | Quantified understanding of aerodynamic parameters in urban areas is of great importance in the model study. In the context of atmospheric turbulent data from a meteorological tower, Martano's method for estimating aerodynamic parameters by using of single level sonic anemometer data is used. The results indicate that the displacement (d) is 40.12 m and the aerodynamic roughness length ( z 0 ) is 1.75 m over the interested domain within the Beijing urban area. The comparison of these results with other works shows that the displacement and the roughness length have increased obviously in recent eight years, which is coincident to the environment change around this tower. |
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| Keywords: | Turbulence observation Aerodynamic roughness length Displacement\ Beijing urban area |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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