研究论文
雷孝恩,任阵海.中距离垂直扩散参数的一个估算方法[J].环境科学学报,1981,1(4):304-312
中距离垂直扩散参数的一个估算方法
- AN ESTIMATION METHOD OF VERTICAL DISPERSION PARAMETERS IN THE MESOSCALE RANGE
- 摘要:本文按照行星边界层(PBL)内局地湍流特性相似的假设和因此分析原理,应用合适的垂直涡旋扩散系数K的统计形式以及埃克曼螺线的风速廓线,通过数值分析,导出了100km范围内既适用于平坦均匀地形又适用于复杂地形的垂直扩散型。其结果与实测资料有较好的一致性。
- Abstract:Based on the hypothesis of similarity for local turbulent characteristics in planetary boundarg layers and the principle of dimensional analysis, and using statistical form of the vertical vortex diffusion coefficient K as well as Ekman spiral wind profile, at vertical dispersion pattern in the 100 km range is derived by numerical analysis method. It is applicable to both flat uniform land and complex terrain. The results so far obtained agree fairly with experimental data.
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