“碧利斯”引发广西异常暴雨的成因分析  

Analysis for the Extreme Rainstorm in Guangxi Caused by "Billis" Typhoon

作　　者：高安宁[1] 谭强敏[2] 

机构地区：[1]广西气象台,广西南宁530022 [2]广西气象培训中心,广西南宁530022

出　　处：《气象研究与应用》2007年第2期7-10,共4页Journal of Meteorological Research and Application

摘　　要：利用常规气象资料和卫星云图等资料对“碧利斯”造成异常暴雨的成因进行了综合分析,结果表明:“碧利斯”登陆减弱成的低压进入广西为强降水提供了动力抬升条件;中低层低压环流与强盛的西南暖湿气流相互作用,为降水云团不断发生和发展提供“燃料”;低层水汽辐合、高层辐散和强烈的上升运动是造成异常暴雨的主要原因。Based on the observational data and satellite images, the causality of extreme heavy rainfall due to the Billis typhoon are analyzed. Results show that the landfall typhoon low enters Guangxi and provides the dynamic lifting condition for the strong rainfall, the interaction of the low pressure in the middle -lower levels and the strong southwest warm and humid current provided ＂the fuel＂ continuously for the creation and The convergence of the moisture in the lower, the di development of the rainstorm cloud cluster. vergence in the upper and the intense lifting movement are the main cause for the extreme rainstorm.

关 键 词：“碧利斯” 西南季风 异常暴雨 成因分析 

分 类 号：P458[天文地球—大气科学及气象学]