| 近地层相似理论适用的分析研究 |
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| 引用本文： | 苗曼倩,朱超群,季劲钧.近地层相似理论适用的分析研究[J].气象学报,1997,55(2):210-218. |
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| 作者姓名： | 苗曼倩 朱超群 季劲钧 |
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| 作者单位： | 南京大学大气科学系，中国科学院大气物理研究所 |
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| 基金项目： | 大气物理与大气化学国家重点实验（LAPC）。 |
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| 摘 要： | 利用实测的脉动场与平均场同步梯度观测资料研究近地层相似理论的适用性。结果表明：理论的核心——近地层为常数通量层的近似假设在有植被陆面上是基本不成立的。Ｗ′Ｔ′随高度明显减小；摩擦速度ｕ＊在３０ｍ高度范围内可增大２４％左右。用相似理论关系式（或称作廓线通量法）得到的通量值只代表某高度层以下的平均值
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| 关 键 词： | 相似理论，适用性，资料分析与理论研究 |
| 收稿时间： | 1995/11/3 0:00:00 |
| 修稿时间： | 1996/8/12 0:00:00 |
STUDY ON THE APPLICABILITY OF THE SURFACE LAYER SIMILARITY THEORY |
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| Miao Manqian,Zhu Chaoqun and Ji Jinjun.STUDY ON THE APPLICABILITY OF THE SURFACE LAYER SIMILARITY THEORY[J].Acta Meteorologica Sinica,1997,55(2):210-218. |
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| Authors: | Miao Manqian Zhu Chaoqun and Ji Jinjun |
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| Institution: | Department of Atmospheric Sciences, Nanjing University, Nanjing, 210093;Department of Atmospheric Sciences, Nanjing University, Nanjing, 210093;Institute of Atmospheric Physics, Academica Scinca, Beijing, 100029 |
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| Abstract: | The applicability of the similarity theory in the surfacelayer is studied by using the gradient observations of fluctuation and mean fields. The study results show that the approximation of constant fluxlayer can not come into existence basically in the surface layer over vegetation land. The decreases with height significantly. The increases about 50% with height within 12m over surface. The heat fluxcalculated by the profile-flux method represents the mean value within some heihght. |
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| Keywords: | Similarity theory Applicability Data analysis and theory stuty |
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