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An analytical method for the determination of the roughness parameters over complex regions

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Abstract

The values of roughness length for momentum z 0and zero-plane displacement d 0over a hilly rough complex region with vegetation were evaluated without any assumption concerning z 0and d 0.It was found that for widely scattered profile data, the method of least squares will not give a reasonable result in determining the roughness parameters. For this purpose, the method of maximum correlation was introduced instead. This method gave a fair result for captive balloon observations conducted in hilly terrain mainly covered with forest in the northwestern part of the Kanto Plain, Japan.

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Author notes

  1. Tokiyoshi Toya

    Present address: Technical Cooperation Department, World Meteorological Organization, 41, Av. Giuseppe-Motta, P.O. Box No. 2300, CH-1211, Geneva, Switzerland

Authors and Affiliations

  1. Meteorological Research Institute, Nagamine 1-1, 305, Tsukuba, Japan

    Masao Mikami & Tokiyoshi Toya

  2. Geophysical Institute, Tohoku University, 980-77, Sendai, Japan

    Nobuhisa Yasuda

Authors
  1. Masao Mikami
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  2. Tokiyoshi Toya
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  3. Nobuhisa Yasuda
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Mikami, M., Toya, T. & Yasuda, N. An analytical method for the determination of the roughness parameters over complex regions. Boundary-Layer Meteorol 79, 23–33 (1996). https://doi.org/10.1007/BF00120073

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  • DOI: https://doi.org/10.1007/BF00120073

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