摘要
采用渐近极值理论中的Ｇｕｍｂｌｅ第１和第３种类型的渐近分布，对成都地区日最大降水量的气候极值问题进行了研究，同时对不同的多种计算方法进行了比较，都取得了较满意的结果。
ABSTRACT In this paper,We apply the model of Gumbles 1 and 3 in the theory of extreme to the largest rainfall of Chengdu，and make a comparison among various computational methods.These results aresatisfied.Dey Words:Asymplotic extreme distribution;Climatic extreme;Gumble distribulion.
