The impact factors analysis of typhoon disasters in Fujian Province
Li Chaochao1,2,3，Li Na1,2，Du Xiaohe1,2，Cheng Xiaotao1，Wan Jinhong1,2
（1. China Institute of Water Resources and Hydropower Research，Beijing 100038；
2.Research Center on Flood and Drought Disaster Reduction ， Ministry of Water Resources， Beijing 100038 ；
3. Hohai University, Nanjing 210098）
Abstract：The direct economic loss caused by typhoon is subject to ambiguity and uncertainty and is difficult to be predicted. Based on 66a typhoon series (1949~2014) in Fujian Province, the characters in both space and time are analyzed. The total number of typhoon landed in Fujian is 111, and 1.7 per year. Typhoons are concentrated between July and September, and landed in the central of Fujian accounted for 57%. The correlations amongst typhoon disasters damage, maximum wind speed, maximum daily precipitation, maximum process precipitation, construction land area, and Per Capita GDP are thoroughly analyzed by using gray relational analysis technique. The study results indicate that the gray relational degree of the relation between typhoon disasters damage and wind/ storm intensity is more than 0.7, which implies the considerable influences of wind/ storm intensity on typhoon disaster damage. The effect degree of 5 main factors is as follows: maximum wind speed>maximum daily precipitation>maximum process precipitation>construction land area> Per Capita GDP. Grey relational analysis method can be utilized to identify and quantify disaster impact factors.
2016, Vol. 26 
