气象与环境学报2024，Vol.40Issue(4)：19-26,8.DOI:10.3969/j.issn.1673-503X.2024.04.003
2023年4月黄海和东海一次大雾过程分析
Analysis of a dense fog event in the Yellow Sea and East China Sea in April of 2023
摘要
Abstract
Using ERA5 reanalysis data,ground observation data from the China Meteorological Administration,and satellite remote sensing monitoring data,an analysis was conducted on a wide-area sea fog event accompanied by an extratropical cyclone entering the Yellow Sea and East China Sea from April 19 to 22,2023.The results indica-ted that the sea fog primarily occurred in the western and northern parts of the cyclone that moves into the sea,with advection cooling fog in the Yellow Sea and frontal fog in the East China Sea.During the occurrence of the Yellow Sea fog,the temperature difference between air and sea ranged from 0℃to 2℃,while in the East China Sea,the air temperature was lower than the sea temperature during the sea fog event.The formation of the Yellow Sea fog was mainly due to the warm and moist air from the south converging and then condensing on the cooler sea surface.In contrast,the East China Sea fog was frontal fog formed under the effect of weak cold air in the rear of the cyclone,providing the main moisture source for the occurrence and maintenance of this sea fog process.During the sea fog event,the cloud water content significantly increased in the vertical direction,and the fog devel-opment height formed by the south wind was greater than that formed by the north wind.关键词
海雾/温带气旋/气—海温差/逆温层Key words
Sea fog/Extratropical cyclone/Air-sea temperature difference/Inversion layer分类
天文与地球科学引用本文复制引用
柳龙生,王慧,黄彬..2023年4月黄海和东海一次大雾过程分析[J].气象与环境学报,2024,40(4):19-26,8.基金项目
国家重点研发计划项目(2021YFC3090205)和中国气象局上海台风研究基金项目(TFJJ202109)共同资助. （2021YFC3090205）
