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利用常规天气资料等对2011年11月28日上午盐城市机场出现的大雾天气进行天气学分析,得出:在稳定的大尺度环流背景下,此次大雾出现范围广、影响强度大,具有平流雾特征,源源不断的暖湿气流输送使机场低层全部为湿层,为盐城市机场出现大雾天气提供了丰沛的水汽条件,高空槽前暖湿气流平流至机场低层冷地面并经辐射冷却达到饱和,形成一个薄的平流逆温层,稳定的空气层笼罩在机场近地面层上空,阻碍了空气对流,有利于大气颗粒物和水汽不断集聚,形成大雾天气并得以持续。
Based on the weather analysis of the foggy weather in Yancheng Airport on the morning of November 28, 2011 using conventional weather data, it is concluded that under the background of stable large-scale circulation, the fog appears in a wide range with large impact intensity, With the features of advection fog and continuous stream of warm and humid air, all the lower floors of the airport are wet, providing abundant water vapor conditions for the foggy weather in Yancheng airport. The warm and wet airflow in the upper part of the tank advects to the cold ground in the lower part of the airport and is radiated Cooling reaches saturation, forming a thin advection thermostat layer, a stable air layer shrouded in the airport near the ground layer, obstructing the air convection, is conducive to atmospheric particulate matter and water vapor continue to gather to form a foggy weather and be sustained.