息烽县1990—2020年大雾天气气候特征分析  

Analysis on Climate Characteristics of Foggy Weather in Xifeng County from 1990 to 2020

作　　者：袁海翔 吕静 邓杨 黄皓宇 黄海 Yuan Hai-xiang(Xifeng Meteorological Bureau,Xifeng,Guizhou 551100)

机构地区：[1]贵州省息烽县气象局,贵州息烽551100 [2]贵州省威宁县气象局,贵州威宁553100

出　　处：《农业灾害研究》2023年第2期118-120,共3页Journal of Agricultural Catastrophology

基　　金：贵州省气象局科研业务项目“息烽县1990—2020年大雾天气气候特征分析”(黔气科登[2021]12-02号)。

摘　　要：选取息烽县国家基本气象观测站1990—2020年期间地面观测资料,对大雾天气的年际变化、月际变化、日变化特征进行统计分析,并对大雾发生发展过程中的相关气象要素如相对湿度、降雨量、风速的变化进行分析,结果表明,息烽县大雾天气年际变化呈现波动性,并具有明显的季节变化特征,主要为冬季多夏季少,1月出现大雾最多,7月最少,夜间是大雾天气生成的高发期;雾形成时往往湿度较大,当日有降水并出现大雾天气的概率占73%,风速较小时更有利于大雾天气生成。Based on the ground observation data of National Basic Meteorological Observation Station in Xifeng County from 1990 to 2020,the paper makes a statistical analysis of the characteristics of the interannual,inter-monthly and diurnal variations of the foggy weather,and analyzes the changes of the relevant meteorological elements such as relative humidity,rainfall and wind speed during the occurrence and development of fog.The results show that:The inter-annual variation of fog weather in Xifeng County shows fluctuation,and has obvious seasonal variation characteristics,mainly winter more than summer,the fog in January is the most,the least in July,the night is the peak period of fog weather.When fog is formed,humidity is usually high,and the probability of precipitation and foggy weather on that day accounts for 73%.The smaller wind speed is more conducive to the generation of foggy weather.

关 键 词：大雾天气 变化特征 统计分析 

分 类 号：P426.4[天文地球—大气科学及气象学]