珠江三角洲地区雾日个例分析

摘要

This paper uses the meteorological element field data,radiosonde data and circulation background data provided by Hongkong Observatory from March 9th to 11th in 2007,to analyze in detail the formation and dissipation of fog occurred in Hongkong,Macao,the Pearl River Delta and the West Guangdong.The result shows the main characteristics and the causes of the fog formation,it also reflects the relationship of fog formation and dissipation with various factors including weather system,air temperature,relative humidity,wind velocity,wind direction and atmospheric stability.%本文利用香港天文台提供的2007年3月9日到11日气象要素场资料、探空资料和环流背景场资料对发生在珠江三角洲和粤西地区以及香港和澳门地区的一次雾日的形成与消散过程进行具体分析,讨论了该次雾日的主要特征与成因,分析了雾形成和消散与天气系统、气温、相对湿度、风速、风向和大气稳定度等各种因素之间的关系。