摘要
根据0414号台风“云娜”灾情调查,使用模糊聚类方法对1949～2004年影响浙江省的重大台风灾害进行分析比较,认为台风“云娜”是浙江省1956年以来所遭遇的最严重台风灾害.综合评估结论：①建国以来台风灾害损失与工农业总产值的比值呈上升趋势,台风“云娜”造成的经济损失与当年生产总值之比为3.54：100;②风暴潮为沿海台风灾害的主要因子,建成标准海塘后,大风上升为首要致灾因子;③沿海农村新建（构）筑物和城市广告牌在台风“云娜”中安全问题突出,民营企业抗灾能力也凸显薄弱环节.
Based on the survey of the characteristics of typhoon Rananim, the comparison and analysis is made of the typhoon disasters occurred from 1949 to 2004 using a fuzzy clustering analysis mathematical model. The results indicate that Rananim is the severest typhoon in Zhejiang Province since 1956. It is found out：①The ratio of the typhoon-induced loss and the gross output value of industry and agriculture shows a rising trend since 1949, and the ratio of the economical loss induced by Rananim and the gross output value of industry and agriculture in 2004 is 3.54 ： 100. ② Storm surges were the main disaster-inducing factor along the coast regions before the construction of the standard seawall, but the strong winds become most important afterwards. ③There exist serious safety hazard in new buildings over therural area and the billboards in the urban areas; the private-owned enterprises are vulnerable to disasters.
出处
《气象科技》
2006年第3期315-318,共4页
Meteorological Science and Technology
关键词
强台风
致灾因子
模糊聚类
灾害评估
severe typhoon, disaster-inducing factor, fuzzy clustering, disaster assessment
