9711台风暴雨特征分析

对9711号台风天气形势和物理量场的诊断分析结果表明：东南低空急流和高层的西风急流与台风的相互作用，高层辐散区与低层辐合区同时北抬和重叠，是造成山东地区附近大范围暴雨的主要原因。暴雨区主要位于台风移动前方的右侧。台风的移向与副高的位置及强弱变化有关。

Torrential Rain Analysis of 9711 Typhoon

Typhoon 9711 is the one, which severely affected East China. The diagnosis of large-scale weather patterns and physical parameters indicates that, the interaction of southeast low jet stream, west high jet stream and typhoon, as well as the simultaneous northward jumping and overlapping of high divergence and low convergence are the major causes for wide range torrential rain of the neighboring area of Shandong Province. The torrential rain zone is mainly located at the right side of the front of the typhoon movement. The movement of the typhoon is related to the position and strength variation of the west Pacific Subtropical High.