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The Numerical Simulation on the PBL Structure and Its Evolution over Small-Scale Concave Terrain


doi: 10.1007/s00376-998-0021-9

  • A high-resolution, nonhydrostatic, three-dimensional diagnostic PBL model over small-scale concave terrain was established in this paper. A two-dimensional prognostic model was developed based on the diagnostic model. The hydrostatic approximation was abandoned and the simple energy (E-ε) closure scheme was used in both mod-els. Using the two models, characteristics of PBL structure and its evolution were fully studied. The main characteris-tic of the PBL is the circulation, and it fairly affects the distribution of the pollutant in the pit.
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    [2] Qingchang QIN, Xueshun SHEN, Chungang CHEN, Feng XIAO, Yongjiu DAI, Xingliang LI, 2019: A 3D Nonhydrostatic Compressible Atmospheric Dynamic Core by Multi-moment Constrained Finite Volume Method, ADVANCES IN ATMOSPHERIC SCIENCES, 36, 1129-1142.  doi: 10.1007/s00376-019-9002-4
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Manuscript History

Manuscript received: 10 January 1998
Manuscript revised: 10 January 1998
通讯作者: 陈斌, bchen63@163.com
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The Numerical Simulation on the PBL Structure and Its Evolution over Small-Scale Concave Terrain

  • 1. Center of Space Sciences and Applied Research, Chinese Academy of Sciences, Beijing 100080,Department of Atmospheric Sciences, Nanjing University, Nanjing 210093

Abstract: A high-resolution, nonhydrostatic, three-dimensional diagnostic PBL model over small-scale concave terrain was established in this paper. A two-dimensional prognostic model was developed based on the diagnostic model. The hydrostatic approximation was abandoned and the simple energy (E-ε) closure scheme was used in both mod-els. Using the two models, characteristics of PBL structure and its evolution were fully studied. The main characteris-tic of the PBL is the circulation, and it fairly affects the distribution of the pollutant in the pit.

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