北冕强热带风暴引发厦门市连续性暴雨过程分析  

A Continuous Heavy Rainfall Process in Xiamen in 2002

作　　者：陈礼斌 魏锦成 何歆 

机构地区：[1]厦门市气象局,厦门361012

出　　处：《福建气象》2003年第6期1-5,共5页

摘　　要：利用常规资料、多普勒雷达回波资料和物理量场，对2002年8月5日至8日厦门市连续暴雨过程进行了分析研究，认为这次暴雨过程是在异常稳定的大尺度环流背景下，多种尺度天气系统相互作用的结果。雷达回波分析表明：强降水开始前半小时左右，在低空一般会有辐合区出现，其强弱和维持时间的长短与降水的强度关系密切；当低空急流高度被抬高后，预示着强降水将告一段落。By using the conventional data and the Doppler radar echos and physical field data, the causes of the continuous heavy rainfall process of August 5-8, 2002 occurred in Xiamen is analyzed.The results show that the continuous heavy rainfall process in the condition of the large-scale circulation systems remaining anomalous stability and the multi-scale weather systems interacting.The analysis results of the Doppler radar echos show that the heavy rainfall had osculating relation with the low-level jet, and low-level convergence appeared 30 minute before the heavy rainfall start, and the height of the low-level jet driven up an hour before the heavy rainfall end.

关 键 词：连续暴雨 天气形势 雷达回波分析 

分 类 号：P458.121.1[天文地球—大气科学及气象学] P444