近地层相似理论适用的分析研究

苗曼倩, 朱超群, 季劲钧

苗曼倩, 朱超群, 季劲钧. 1997: 近地层相似理论适用的分析研究. 气象学报, (2): 210-218. DOI: 10.11676/qxxb1997.022
引用本文: 苗曼倩, 朱超群, 季劲钧. 1997: 近地层相似理论适用的分析研究. 气象学报, (2): 210-218. DOI: 10.11676/qxxb1997.022
Miao Manqian, Zhu Chaoqun, Ji Jinjun. 1997: STUDY ON THE APPLICABILITY OF THE SURFACE LAYER SIMILARITY THEORY. Acta Meteorologica Sinica, (2): 210-218. DOI: 10.11676/qxxb1997.022
Citation: Miao Manqian, Zhu Chaoqun, Ji Jinjun. 1997: STUDY ON THE APPLICABILITY OF THE SURFACE LAYER SIMILARITY THEORY. Acta Meteorologica Sinica, (2): 210-218. DOI: 10.11676/qxxb1997.022

近地层相似理论适用的分析研究

基金项目: 

大气物理与大气化学国家重点实验(LAPC)

STUDY ON THE APPLICABILITY OF THE SURFACE LAYER SIMILARITY THEORY

  • 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。
    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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出版历程
  • 收稿日期:  1995-11-02
  • 修回日期:  1996-08-11
  • 发布日期:  2013-02-19

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