基于加权TOPSIS法的浙江省抗台风减灾能力评估

Evaluation of Typhoon Disaster Prevention and Mitigation Ability in Zhejiang Province Based on Weighted TOPSIS Method

利用浙江省1978-2010年资料,采用主成分分析法对多个评价指标进行客观赋权,建立基于改变的加权TOPSIS法的抗台风减灾能力评估模型,以1994年为基准年份,对浙江省抗台风减灾综合能力进行定量评估分析。实验结果显示,历年来浙江省的抗台风减灾能力呈逐渐上升的趋势,在上升中存在小幅度的波动。与实际台风关联比较分析,得出该方法对于浙江省的抗台风减灾能力的评价是客观可行的,可以为该省的防台减灾建设提供方向指导。

With the materials of Zhejiang province between 1978 and 2010, and by using principal component analysis, the weight of all factors are determined, and an index system for evaluation of typhoon disaster prevention and mitigation ability based on improved weighted TOPSIS method is established. By setting 1994 as the base year, typhoon disaster prevention and mitigation ability in Zhejiang province are evaluated quantitatively. The experimen- tal results show that, in the past many years, Zbejiang typhoon disaster prevention and mitigation ability is rising gradually, existing small amplitude fluctuations. With the history typhoon correlation comparative analysis, the con- clusion is drawn that this method for evaluating Zhejiang typhoon disaster prevention and mitigation ability is objective feasible; it can provide guidance direction for the province＇s typhoon disaster reduction construction.