台风影响期间珠江三角洲局地强风暴和大暴雨发生的环境条件  

ENVIRONMENTAL CONDITIONS OF GENESES OF SEVERE LOCAL STORM AND HEAVY RAIN IN THE PEARL RIVER DELTA DURING PERIODS OF TYPHOON INFLUENCE

作　　者：王沛霖[1] 

机构地区：[1]中山大学大气科学系

出　　处：《热带气象学报》1995年第4期375-379,共5页Journal of Tropical Meteorology

基　　金：广东省科学基金

摘　　要：采用１９７６—１９８３年６—８月珠江三角洲地区受台风影响期间区内各站逐日的强风暴和降水资料以及广州站的探空资料，用相关对比度分析方法，对台风环流中的珠江三角洲局地强风暴和大暴雨发生的环境条件进行统计诊断，得出台风影响珠江三角洲时这两种强天气发生的有利的环境条件，并发现二者在气压、风速、层结稳定度和中下层位势不稳定等方面显著不同。By use of June through August daily data of severe local storm and rainfall for the Pearl River Delta stations and sounding data for the GuangZhou station together with the method of correlative contrast,the environmental conditions for the geneses of severe local storm and heavy rain in the circulation of typhoon are statistically diagnosed. Favourable conditions are identified for the two kinds of severe weather with the typhoon influence, which are remarkably different in pressure, wind speed, stratification stability,and geopotential instability at middle-and-lower level.

关 键 词：台风 珠江三角洲 大暴雨 局地强风暴 对比度 

分 类 号：P444[天文地球—大气科学及气象学]