模糊聚类在流域年径流规律研究中的应用

对水资源系统的规律研究通常是对系统进行聚类、识别来实现，目前可用于水资源系统的模糊聚类的理论和模型很多，但是每种方法都有各自的特点，本文介绍一种模糊聚类循环迭代模型和最佳聚类数的确定方法，通过直观的离散函数曲线确定最佳聚类数和循环迭代的方法确定聚类中心，达到对样本进行归类的目的，最后将模糊聚类循环迭代模型应用到流域年径流规律的研究中，这对认识流域年径流规律具有一定的意义。

Fuzzy clustering and its application in the research of runoff rule

The research of water resources system rules is realized usually by means of clustering and recognition. Today, many fuzzy clustering means can be used in the water resources system,and each has it's characteristic. In this paper, the author introduces a kind of fuzzy clustering model.At the same time a method to decide the preferable clustering number is also presented, so the clustering center and preferable clustering number can be determined,and the clustering model is used in the research of runoff rule which is meaningful to recognize the rules of water resources system.