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本文介绍了渤海湾秦皇岛地区实施的一次测试研究。以观测事实的分析为基础,着重对海岸环境的风特性、局地环流现象、内边界层和PBL结构及各种特征参数作了研究,得出一些规律性结果。发现局地海风自08:00开始发展,逐渐增厚向上发展并可维持到18:00开始减弱并转换。平均海风厚度层达300—500m,平均风速2.8m/s。热内边界层高度有实验关系 h_θ(x)=69.2((ΔT·R·x)/(?))~(-1/2)。文中还给出湍流特征量U_*,T_*,R_i,L和扩散系数K_z的计算结果。这些基本观测结果和参数为进一步的实际应用,提供必要模式参数和实验依据。
This article presents a test study carried out in Qinhuangdao, Bohai Bay. Based on the analysis of observation facts, the paper focuses on the wind characteristics of the coastal environment, the phenomenon of local circulation, the internal boundary layer and PBL structure and various characteristic parameters, and obtains some regularity results. It was found that the local sea breeze started to develop from 08:00 and gradually grew thicker and maintained until 18:00 and then weakened and converted. Average sea breeze thickness of 300-500m, the average wind speed of 2.8m / s. The thermal inner boundary layer height has an experimental relationship h_θ (x) = 69.2 ((ΔT · R · x) / (?)) ~ (-1/2). The computational results of turbulent flow characteristics U_ *, T_ *, R_i, L and diffusion coefficient K_z are also given in this paper. These basic observations and parameters for further practical application, provide the necessary model parameters and experimental basis.