【作者】 农孟松； 卢伟萍； 刘国忠；

【Author】 NONG Meng-song, LU Wei-ping, LIU Guo-zhong(Guangxi Meteorological Observatory, Nanning 530022,Guangxi, China;Baise Meteorological Bureau, Baise 533000, Guangxi, China)

【机构】 广西壮族自治区气象台； 广西壮族自治区百色气象台；

【摘要】 本文利用常规观测资料和物理量资料,对2003年6月26—28日广西全区性范围暴雨天气过程进行诊断分析,指出副热带高压逐渐加强西伸与弱冷空气在广西维持对峙是暴雨产生的主要原因;物理量和云图分析表明,暴雨发生前广西上空有深厚的不稳定层结存在,造成本次的强降水是对流层中低层暖湿空气被地面弱冷空气抬升的结果。更多还原

【Abstract】 By use of the observe and physical data and diagnotic analysing of the regionally torrential rain process of Guangxi on Jun ,26-28th ,2003, it was pointed that the main reason caused the torrential rain was the maintain of the graduately western strengthen of the subtropical high and the weak cold air in Guangxi. Analysed of the physics and cloud image, it appeared that deeply instable stratification was existed over Guangxi before the occurrence of torrential rain and the lift of the moist air at lower troposphere by the weak cold air resulted in the torrential tain.更多还原