城市大风灾害风险评估及规划响应——以河北省邯郸市为例

Risk Assessment and Planning to Urban Gale Disasterss:A Case Study of Handan, Hebei Province

大风灾害严重威胁着城市安全,文章以气象数据和空间数据为基础,通过剖析大风灾害的敏感性、危险性、脆弱性和大风抗灾减灾能力四个角度,选定9个指标构建大风灾害综合风险评估指标体系,并以邯郸市为例,研究大风灾害风险空间分布特征。基于AHP层次分析法为体系中各项大风灾害评估指标赋予权重值,并代入GIS地理信息系统中进行风险可视化,根据综合风险评估结果,为邯郸市抵御大风灾害提出相应的防灾规划策略。

Gale disasters a serious threat to urban security.Based on meteorological data and spatial data, this paper selects 9 indicators by analyzing the sensitivity, risk, vulnerability and the ability of strong wind disasters to resist and reduce disasters according to the regional disaster system theory. Construct a comprehensive risk assessment index system for gale disasters, and take Handan City as an example to study the spatial distribution characteristics of gale disaster risks. Based on the AHP, weight are assigned to the evaluation indicators of gale disasters in the system,and they are substituted into the GIS for visualization. According to the comprehensive risk assessment results, corresponding disaster prevention planning strategies are proposed for Handan City to resist gale disasters.