对1950-2010年影响浙西南的热带气旋降水的移动路径、影响时间、强度、西风槽、西南季风以及地形等主要因子进行分析.结果表明:在玉环南-厦门一带登陆的热带气旋是影响浙西南的热带气旋中正面影响浙西南的类型,影响时间和最大平均过程降雨量、最大过程雨量存在着正相关关系,热带气旋的强度与其降水强度相关性较高.西风槽的存在不仅影响着热带气旋路径的变化,其槽前的西南气流也为热带气旋降水提供充足的水汽,同时槽后冷空气与热带气旋相结合,使丽水的西北部出现另一个强降水中心.西南季风为登陆后的热带气旋提供了水汽条件,使降水得到增幅.浙西南独特的地形,使在厦门以北到玉环以南登陆后西进、西北行或西北行后在120°E以西转向北上的热带气旋迎着山脉进入,降水强度明显加强.%The main factors influencing tropical cyclone precipitation in Lishui from 1950 to 2010 are analyzed in the aspects of the moving path, duration and intensity of tropical cyclones, westerly trough, southwest monsoon, and topography. The results show that the tropical cyclones landed from the south from Yuhuan to Xiamen are the direct type which influenced Lishui. There is a positive correlation between duration and average maximum process rainfall, as well as maximum process rainfall. The relevance between typhoon intensity and precipitation is very high. The westerly trough not only influenced the moving path of tropical cyclones, but also provided adequate water vapor. At the same time the combination of cold air from the trough behind and tropical cyclones induced often another precipitation center. The southwest monsoon provided water vapor for tropical cyclones, which enhanced precipitation. The unique topography of Lishui also enhanced the precipitation of tropical cyclones landed from Xiamen to the south of Yuhuan against the mountain.
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