| 摘要: |
| 根据我国广东阳江某大型电力工程项目前期工作中获取的气象资料,分析了该地区海陆风环流特征。结果表明该地区海陆风频率较高,但相当一部分环流较浅(尤其是春季);海风持续时间平均为9～10小时;白天的海风比夜间的陆风要强得多,高空回流层的气流强度远小于地面入流层的强度;海陆风环流结构比较特殊,其上下层风向间以及白天的海风风向和晚上的陆风风向间大多有较大夹角,不易形成重复污染。 |
| 关键词: 海陆风 边界层气象 大气污染 |
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| OBSERVATION RESULTS AND ANALYSES OF THE SEA-LAND BREEZE OVER YANGJIANG COASTAL REGION IN GUANGDONG |
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ZHOU Bo-sheng1, WANG Yong-xin1, YU Jian-guo1, JIANG Wei-mei2, LI Zong-kai2
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1.Suzhou Thermal Engineering Research Institute, Suzhou 215004, China;2.Department of Atmospheric Science, Nanjing University, Nanjing 210008, China
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| Abstract: |
| Based on the meteorological data obtained from preparatory work of a large-sizeproject--a nuclear power station located in Yangjiang, characteristics of the sea-landbreeze circulation over the coastal area of this region were analyzed. It is shown that the frequency of the sea-land breeze circulation is quite high but the height of some part of that is small; the averaged persistent time lies between 9 to 10 hours; the sea breeze is much stronger than the land breeze; the return-flow in the upper layer is weaker than the inflow near the surface. The structure of the sea-land breeze circulation is special in structure. The pollution in this region will not accumulate because of the big angles between the wind directions of upper return-layer and lower layer. |
| Key words: sea-land breeze boundary layer meteorology air pollution |
