9711号台风与0509号台风能量场对比分析  

Comparision Analysis of Energy Field between 9711 and 0509 Typhoon

作　　者：臧传花 

机构地区：[1]淄博市气象局,山东淄博255048

出　　处：《山东气象》2006年第1期5-9,共5页Journal of Shandong Meteorology

摘　　要：对比分析了9711号台风与0509号台风的环流背景和移动路径,并重点从能量角度分析了θse的时空分布特征,总结了造成两次台风过程降水分布差异的原因。结果表明,二个台风的路径相似,暴雨区分布在台风中心左侧2个经度至右侧4个经度范围内,右前侧暴雨强度更大,范围更广。与9711号台风相比,0509号台风暴雨的强度弱、范围小,对形成强降水不利的条件为:台风路径偏东;在台风北上过程中,西太平洋副高南撤使台风与副高之间的东南气流减弱;台风强度弱,能量衰减快,能量锋区在垂直方向发展不深厚。The track and circulation of 9711 typhoon and 0509 typhoon was analysed. The spatial distribution and temporal variation of 0se were analysed on emphases. The mechanisms contributing to difference in rainfall between the two typhoons were also investigated. The results show that the two typhoons exhibited similar tracks. In comparison with 9711 typhoon,the rainfall of 0509 typhoon appeared to be weaker, and smaller in spatial coverage. A number of factors were unfavorable to the rainfall of 0509 typhoon. These include： the subtropical high moved southward which made the southeasterly weak;the typhoon energy became weak and damping quickly;the front of moist energy was not noticeable and the maximum energy was in the south of the typhoon; meanwhile, the development of energy didn＇t extend as high and strong as in 9711 typhoon.

关 键 词：台风 暴雨 能量 对比分析 

分 类 号：P458[天文地球—大气科学及气象学]