Risk Assessment of Rainstorm Disaster in Guangxi Based on Multi-Source Data (PAP014447)

Código

PAP014447

Autores

Kuang Zhaomin, Meng cuili, Li li, HE Li

Tema

Land use and Floods, landslides and erosion

Resumo

In order to cope with the frequent rainstorm disaster and its increasingly adverse effects on Guangxi Zhuang Autonomous Region?Principal Components Analysis (PCA) and Analytic Hierarchy Process (AHP) methods are used on the bases of GIS with multi-source data involving meteorology, historical disaster events, social economy and geography of Guangxi, to develop a data sequence processing and quantitative technology. By which, a rainstorm disaster risk evaluation model has been developed, including four kinds of factors: the dangerousness of real time rainstorm, the sensibility of hazard-formative environment, the vulnerability of receptors and the regional capacity of disaster resistance. Then, the spatial distribution map of rainstorm risk level evaluation in Guangxi has been developed by using the model, and the verification results in this paper show that the risk evaluation results consistent with actually happened disaster condition well.