| 一次黄海海雾成因分析及数值模拟试验 |
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| 引用本文： | 程相坤,程航,徐杰,马雁军.一次黄海海雾成因分析及数值模拟试验[J].气象与环境学报,2013,29(6):15-23. |
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| 作者姓名： | 程相坤 程航 徐杰 马雁军 |
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| 作者单位： | 1.中国海洋大学海洋环境学院，山东 青岛 266003；2. 大连市金州区气象局，辽宁 大连 116600；3.大连市气象局，辽宁 大连 116001；4. 中国气象局沈阳大气环境研究所，辽宁 沈阳 110166 |
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| 基金项目： | 国家自然科学基金面上项目（40975003）和大连市科技局项目（2009E11SF230）共同资助. |
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| 摘 要： | 根据GOES-9(Geostationary Operational Environmental Satellite）可见光卫星云图和韩国济州岛探空资料等，利用RAMS(Regional Atmospheric Modeling System)模式（6.1版）对2009年3月17-18日发生在黄海海域的一次大风条件下出现的海雾天气进行模拟。结果表明：与卫星云图所显示的雾区范围相比，模拟结果对海雾的生成、发展、移动都有较好吻合；云水混合比是影响大气水平能见度分布的主要因子，云水混合比大值区主要集中在距地面300 m以下的低空；雾区存在几个云水混合比大值区，并分布在不同的高度，说明海雾的团状不均匀结构；海上平流雾常发生在风速较大的情况下，RAMS模式对此具有一定的模拟能力。
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| 关 键 词： | 海雾 三维数值模拟 水平能见度 卫星云图 |
Forming reason of a sea fog event and its numerical simulation over the Yellow Sea |
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| CHENG Xiang-kun,CHENG Hang,XU JieI MA Yan-jun.Forming reason of a sea fog event and its numerical simulation over the Yellow Sea[J].Journal of Meteorology and Environment,2013,29(6):15-23. |
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| Authors: | CHENG Xiang-kun CHENG Hang XU JieI MA Yan-jun |
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| Institution: | 1. Department of Marine Environment, Ocean University of China, Qingdao 266003, China; 2. Meteorological Service in Jinzhou District of Dalian, Dalian 116600, China; 3. Dalian Meteorological Service, Dalian 116001, China; 4. Inslitute of Atmospheric Environment, China Meteorological Administration, Shenyang 110166, China) |
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| Abstract: | Based on the GOES-9 （Geostationary Operational Environmental Satellite）visible satellite image and the data from the radiosonde station of Jizhou island of South Korea, a sea fog event on March 17 to 18,2009 under the gale condition over the Yellow Sea was simulated using RAMS （Regional Atmospheric Modeling System） （ version 6. 1 ）. The results indicate that the generation, development and movement of sea fog could be well simu- lated. The range of simulated fog area is similar to that presented on the satellite cloud image. The cloud water mixing ratio is the main factor influencing atmospheric horizontal visibility distribution, and its large value area concentrates in layer below 300 m（ distance to the ground）. There are a few areas having large cloud water mixing ratio values in the fog area, and they are located in the different heights, so it suggests that the sea fog is not even. The sea advection fog often occurs under the large wind speed condition, and it could be well simulated by the RAMS. |
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| Keywords: | Sea fog Three-dimensional numerical simulation Horizontal visibility Satellite imagery |
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