Dynamic Vulnerability Analysis of Population for Flood Disaster in Urban Area

Abstract

Vulnerability analysis is a key step of risk analysis of natural disaster. Based on information diffusion theory and incomplete information, it analyzes the changes of the affected population in urban flood and identifies the function relationship between the hazard (rainstorm) and disaster-bearing body (population), which is called vulnerability curve of population in flood disaster.This curve not only can present some changing extent of urban flood risk, but also could provide an important basis for integrated risk assessment of urban flood.

Flood and Water-Logging Disaster Risk Analysis and Research of Bazhong City

“…真模型进行设定情景下的洪水风险模拟实验。 庞西 磊（2013） [3] 运用信息扩散技术，构建暴雨致灾因 子和人口承灾体之间关系的模型， 为自然灾害风险 评估提供了依据。王建华（2011） [4] 运用模糊综合 评判法构建了洪水灾害风险评估模型。田玉刚等 （2012） [5] 对致灾因子危险性、孕灾环境危险性和 承灾体脆弱性进行叠加， 得出洞庭湖地区洪水灾害 综合风险等级划分。薛晔等（2012） [6] 利用模糊近 似推理理论和方法， 建立多灾种综合风险评估软层 次模型。程先福等（2013） [7] …”

Evaluation of Flood Vulnerability of Typical Regions at Dongting Lake Area in China Based on Multi-source Information Digging and Fusion

“…Pang X analyzes the changes of the affected population in urban flood and identifies the function relationship between the hazard (rainstorm) and disaster-bearing body (population), which is called vulnerability curve of population in flood disaster [10]. Zhao S et al constructed the vulnerability regress model between crop's flood-effected area and average daily rainfall in a storm [11].…”