热带风暴莲花外围特大暴雨的成因分析OA北大核心CSCDCSTPCD
Analysis of Tropical Storm（0903） Linfa Torrential Rain
利用1°×1°的NCEP再分析资料计算螺旋度、湿位涡及各种基本物理量,并结合多普勒雷达资料,对0903号热带风暴莲花外围环流在粤东引发特大暴雨过程进行追踪和诊断分析,探讨此次特大暴雨天气发生、发展的热力学和动力学机制以及雷达回波特征。分析结果表明：台风低槽外围的西南急流为特大暴雨提供了充沛的水汽条件和热力条件;暴雨区上空中低层（）θ_（se）/（）p〉0,存在明显的等θ_（se）陡立面,同时该区上空低层MPV为高负值区,两者结合可见特大暴雨区上空…查看全部>>
Based on the high resolution NCEP reanalysis data the helicity,moist potential vorticity（MPV） and some other essential physical quantities were computed,and then combined with Doppler Radar products, the associated thermodynamic and dynamic mechanisms for the occurrence and evolution of an extremely heavy rain in eastern Guangdong caused by the tropical storm（0903） Linfa were analyzed.The results suggested that the southwesterly jet in the periphery of typho…查看全部>>
张清华;吴建成;刘蕾;黄彬
广东省梅州市气象局,514021福建省漳州市气象局,363000广东省梅县气象局,514700广东省梅州市气象局,514021
天文与地球科学
热带风暴特大暴雨成因分析湿位涡螺旋度雷达回波
tropical stormtorrential raincausative analysisvorticityhelicityradar echo
《气象》 2012 (5)
543-551,9
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