基于灰云白化权函数的洪水灾害综合等级评估  

Synthetic ranking evaluation of flood disaster based on grey-cloud whitening-weight function

作　　者：黎育红[1] 陈玥[2] 

机构地区：[1]华中科技大学水电与数字化工程学院,湖北武汉430074 [2]江汉大学图书馆,湖北武汉430056

出　　处：《自然灾害学报》2013年第1期108-114,共7页Journal of Natural Disasters

基　　金：水利部公益性行业科研专项资助项目(201001080);中央高校基本科研业务费资助项目(HUST2011QN032);教育部留学回国人员启动基金;华中科技大学高层次人才引进基金;华中科技大学科学研究基金项目

摘　　要：将表示信息模糊性和随机性的定性、定量转换的云模型引入灰色白化权函数的表达,对传统白化权函数进行改进,建立了基于灰色云模型的白化权函数,用灰云聚类模型对洪水灾害损失进行等级评估,以弥补常用方法的不足。最后选取1989-1990年间我国部分省市发生的45个洪水灾害的灾情案例作为评估实例,选取房屋倒塌数量、受灾面积、伤亡人数和直接经济损失4个评估指标,对所有样本进行灰云聚类,得到了灾情评估结果,证实了该方法的可行性。This paper improves the traditional whitening-weight function by introducing the cloud model, a representation that could take bi-directional conversion between qualitative and quantitative determination of fuzziness and randomness. With the improvement, a grey-cloud clustering model was proposed for the synthetic ranking evaluation of flood disaster. The novel method is then applied to evaluate 45 flood disaster cases of several provinces in 1989- 1999, evaluating the amount of building collapse, affected area, number of victims, and direct economic loss. Results showed that this method is rational and usable for flood disaster evaluation.

关 键 词：白化权函数 灰云聚类 洪水灾害 综合损失等级评估 

分 类 号：P426.616[天文地球—大气科学及气象学]