1117号强台风“纳沙”引发海南岛特大暴雨过程分析  

Analysis on Heavy Rainfall Process Caused by 1117 Strong Typhoon " Neuchatel " in Hainan Island

作　　者：蔡小辉 杨仁勇[2] 周过海 郭志鹄 

机构地区：[1]昌江县气象局,海南昌江572700 [2]海南省气象台,海南海口570203

出　　处：《气象研究与应用》2012年第2期5-8,I0001,共5页Journal of Meteorological Research and Application

摘　　要：利于MICAPS资料、NCEP资料和多普勒天气雷达资料分析了1117号强台风"纳沙"造成海南岛特大暴雨过程分析。结果表明,强盛的西南季风为其提高了充足的水汽和能量;双重"列车效应"是造成海南岛特大暴雨的主要原因,暖平流上叠加辐合风场有利于强降水的形成和维持,"逆风区"与强降水中心一致;地形对降水起到明显的增幅作用。Basing on MICAPS data, NCEP data and Doppler weather radar data, the heavy rainfall pro- cess caused by 1117 strong typhoon＂Neuchatel＂in Hainan Island were analyzed. The results show that the strong southwest monsoon provides the ample moisture and energy. The double＂train effect＂in Radar echo is the main reason of the heavy rainfall. The warm advection superimposing on the convergent wind field is conducive to the formation and maintenance of heavy precipitation. Adverse wind regions （AWR） are cor- responding to the heavy precipitation center. The topography played a significant increase role on precipi- tation.

关 键 词：特大暴雨 双重 地形 

分 类 号：P458.121.1[天文地球—大气科学及气象学]