【摘要】 本文应用特大暴雨出现时段相应的高空环流特征 ,逐时卫星云图的演变 ,以及最大逐时暴雨中心单站气象要素的分析 ,探讨了“0 0 12”台风引发“8.30”特大暴雨的成因。可以认为不论是第一段强降水时段 ,还是后二段强降水时段 ,造成这次罕见的特大暴雨的主要成因是台风环流与中纬度西风带急流、冷槽 (锋区 )相互作用的结果 ;而第三段暴雨则是台风本身的影响。更多还原

【Abstract】 We discussed the reasons of’8.30’storm rainfall caused by typhoon 0012 based on the upper circulative characters during the course of heavy rain, the evolvement of hour-to-hour satellite cloud picture and the analysis of single station meteorological elements of the maximum hour-to-hour storm rainfall center. It was shown that for the precipitation processes ,including the first and second strong precipitation phases, the major cause of this rare storm rainfall was the result of interaction among the typhoon circulation, western jet and the cold trough (frontal zone),and the third precipitation phase was affected by typhoon itself.更多还原