台风“暹巴”变性引发的铁岭地区暴雨过程分析  

Analysis of Rainstorm Process in Tieling Area of Liaoning Province Caused by Typhoon Chaba Denaturation

作　　者：许馨月 张明哲 李晓婷 王禄禄 姜新 Xu Xin-yue(Tieling Meteorological Station,Tieling,Liaoning 112608)

机构地区：[1]铁岭市气象台,辽宁铁岭112608

出　　处：《农业灾害研究》2023年第8期157-159,共3页Journal of Agricultural Catastrophology

摘　　要：利用常规气象观测资料,从环流背景、天气影响系统、物理量场、数值预报模式等方面,采用天气学分析方法,对2022年7月6—7日铁岭地区区域性暴雨、局部大暴雨天气过程进行分析。结果表明:台风“暹芭”变性后的温带气旋、副热带高压的位置和低空急流的配合,为此次区域性暴雨提供了有利的条件;此次暴雨过程存在南北2条大暴雨带,与气旋发展、移动路径及低空急流的强度和位置密切相关;实况与数值模式对比检验分析对大暴雨落区的预报起到重要作用,具有一定指示意义。The process of regional rainstorm and local rainstorm in Tieling area from July 6 to 7,2022 was analyzed by using conventional meteorological observation data from circulation background,weather influence system,physical quantity field and numerical forecast model.The results show that the extratropical cyclone after the transformation of Typhoon “Chaba”,the location of subtropical high and the coordination of low-level jet provided strong conditions for the regional rainstorm.There were two heavy rain belts in the north and south,which were closely related to the development and moving path of the cyclone and the intensity and location of the low-level jet stream.The comparison and analysis of the real and numerical models play an important role in the prediction of heavy rainfall area and have certain indicative significance.

关 键 词：区域性暴雨 台风变性 副热带高压 低空急流 

分 类 号：P458.121.1[天文地球—大气科学及气象学]