Analysis of typhoon disaster chain and risk management in northward typhoon effecting Hebei

Based on northward typhoon effecting Hebei data during1949-2018,key areas were Defining . The climatic features and impacts of typhoons entering the key areas were discussed. The results show that most of northward typhoon effecting Hebei occurred from late July to early August.The northward typhoon entering III district affected Hebei with the highest frequency, and rainstorm, gale and storm surge were easy to happen, Second -ly, it was II, which was to cause coastal and sea winds, When entering I, the TaihangMountains in the south had severe flood disasters. Starting from the disaster system theory, combined with the disaster data, the disaster-preventing environment and the disaster-bearing body information, the typhoon-storm, typhoongale, typhoon-storm surge three disaster chains were Built. And accord -ing to different disaster chains, corresponding disaster reduction measures were proposed, provided technical and decision support for the effective management of typhoon disaster risks. Keywords— northward typhoon, affecting key areas, disaster chain, disaster prevention 摘要—利用 1949—2018年影响河北的北上台风 资料,划定影响河北的台风关键区,对进入关键区 的北上台风的气候特征以及影响进行分析发现,影 响河北的北上台风大多发生 7 月下旬-8 月上旬;北 上台风进入III区影响河北的频率最高,暴雨、大风、 风暴潮均易发生;其次为II区,易引发沿海及海上 大风;进入I区时,西部太行山暴雨山洪灾害严重。 从灾害系统论出发,结合灾情资料、孕灾环境和承 灾体构建北上台风影响河北的台风—暴雨,台风— 大风、台风—风暴潮三种灾害链,并且针对灾害链 的不同,提出对应的断链减灾对策,为有效进行台 风灾害风险管理,提供技术支持和决策支撑。 关键词—北上台风,台风关键区,灾害链,减灾对