台风“利奇马”在福建焚风效应分析  

Analysis of Foehn Effect of Typhoon"Lekima"in Fujian

作　　者：高珊[1] 刘通易[1] 吴幸毓[1] 陈淼[1] GAO Shan;LIU Tong-yi;WU Xing-yu;CHEN Miao(Fujian Meteorological Observatory,Fujian Fuzhou 350001)

机构地区：[1]福建省气象台,福建福州350001

出　　处：《黑龙江气象》2023年第1期14-17,共4页Heilongjiang Meteorology

摘　　要：2019年8月9-11日福建沿海出现罕见的大范围高温酷热天气,伴随着低湿与大风。本文利用常规观测资料、风廓线雷达等资料对本次过程进行分析,发现本次过程中,台风“利奇马”外围西北气流经过福建中部山脉,与山脉交角较大,在背风坡出现下沉运动导致沿海地区出现异常增温,强的下沉运动对应着较强的增温现象,同时风力较大、湿度较小,是台风影响下福建出现的一次典型的焚风效应。From August 9 to 11,2019,a rare large-scale high temperature and hot weather occurred along the coast of Fujian,accompanied by low humidity and strong winds.This paper uses conventional observation data and wind profile radar data to analyze this process.It is found that during this process,the northwest airflow from the periphery of typhoon Lekima passed through the Mountains in central Fujian,making a large angle with the mountains and sinking on the leeward slope.The movement led to abnormal warming in the coastal areas.The strong subsidence movement corresponds to the strong warming phenomenon.At the same time,the wind is strong and the humidity is low.It is a typical Foehn effect in Fujian under the influence of the typhoon.

关 键 词：高温 台风 西北气流 焚风效应 下沉增温 

分 类 号：P458.124[天文地球—大气科学及气象学]