济南机场一次持续性大雾过程边界层特征及诊断分析  

Boundary Layer Characteristics and Diagnosis Analysis of a Continuous Heavy Fog Process in Jinan Airport

作　　者：李根 吴福浪 Li Gen;Wu Fulang(Air Traffic Control of Jinan of CAAC,Jinan,250107 Shandong China;Air Traffic Control of Ningbo of CAAC,Ningbo 315154 Zhejiang China)

机构地区：[1]中国民航华东地区空中交通管理局山东分局,山东济南250107 [2]中国民航宁波空中交通管理站,浙江宁波315154

出　　处：《中国民航飞行学院学报》2022年第3期35-38,共4页Journal of Civil Aviation Flight University of China

摘　　要：本文对2019年12月7日至10日济南机场一次持续性大雾过程进行分析。结果表明:本次持续性大雾在地面形势上先后经历了入海高压后部、弱气旋辐合以及冷锋前部3种形势,与典型山东大雾地面形势存在一定的差异;持续性大雾天气下,即使全天都维持大雾天气,能见度和RVR的变化仍然具有一定的日变化特征;逆温强度、逆温温差与大雾的强度和消散时间存在一定的对应关系;由于大雾期间环流形势的变化,不同时段造成逆温的原因也各不相同;边界层中低层弱辐合上升运动配合中高层弱辐散下沉运动有利于大雾的发生,边界层整层无明显辐合辐散、垂直运动有利于大雾天气的维持。A continuous heavy fog process in Jinan airport from December 7 to 10,2019 are analyzed.The results show that under the sustained fog weather,even if the fog weather is maintained all day,the changes of visibility and RVR still have certain characteristics of daily change.Due to the change of the circulation situation during the fog,the causes of the inversion are various in different periods;the weak convergence and ascending movement in the middle and lower layers of the boundary layer and the weak divergence and sinking movement in the middle and upper layers are conducive to the occurrence of the fog,the whole layer of the boundary layer without obvious convergence and divergence,and the vertical movement is conducive to the maintenance of the fog weather..

关 键 词：大雾 边界层 济南机场 

分 类 号：V321.2[航空宇航科学与技术—人机与环境工程]