吉林省白山市某次区域性大暴雪天气过程分析——以2020年2月14—16日暴雪为例  

Analysis of a regional blizzard weather process in Baishan City--Taking blizzard from February 14 to 16,2020 as an example

作　　者：周海霞 李春龙 张继玲 张新起 ZHOU Haixia;LI Chunlong;ZHANG Jiling;ZHANG Xinqi(Jingyu County Meteorological Bureau,Baishan City,Jilin Province,Baishan 135200,China;Changbai County Meteorological Bureau,BaishanCity,Jilin Province,Baishan 134400,China;Forestry Work Service Department,Changbai Town,Changbai County,Baishan 134400,China)

机构地区：[1]吉林省白山市靖宇县气象局,吉林白山135200 [2]吉林省白山市长白县气象局,吉林白山134400 [3]长白县长白镇林业工作服务科,吉林白山134400

出　　处：《中国高新科技》2024年第18期156-157,160,共3页

摘　　要：文章选择常规气象资料、NCEP全球分析资料等相关资料对2020年2月14—16日白山市一次区域性大暴雪天气过程进行分析,结果表明,在此次天气出现之前,500hPa亚洲东部一带大气环流形势为“2槽1脊”型,白山市位于温度锋区底部,槽前低空西南气流比较强盛;急流风速的辐合,加上倒槽东南气流以及西南气流的风向切变,共同推动白山市暴雪天气的发生发展。This article selects conventional meteorological data,NCEP global analysis data,and other relevant data to analyze a regional heavy snowfall weather process in Baishan City from February 14 to 16,2020.The results show that before the occurrence of this weather,the atmospheric circulation pattern in the eastern part of Asia at 500hPa was a“2 troughs and 1 ridge”type.Baishan City is located at the bottom of the temperature front zone,and the southwest airflow in the low altitude before the trough was relatively strong;the convergence of jet wind speed,combined with the southeast airflow of the inverted trough and the wind direction shear of the southwest airflow,jointly promote the occurrence and development of blizzard weather in Baishan City.

关 键 词：白山市 大暴雪天气 环流背景 物理量 

分 类 号：P458[天文地球—大气科学及气象学]