Research on flood disaster in northern cities combining risk analysis and loss assessment：taking the heavy rainstorm and flood disaster in Zhengzhou City in July 2021 as an example
LIU Hai1， LIU Feng1， ZHENG Liang2， CHEN Xiaoling2
(1.Faculty of Resources and Environmental Science，Hubei University，Wuhan 430062，China；2.State Key Laboratory of Information Engineering in Surveying，Mapping and Remote Sensing，Wuhan University，Wuhan 430079，China)
Abstract：Urban flood disaster often causes catastrophic loss of life and property. It is very important to study urban flood disaster for flood prevention and control. Previous studies mostly focused on flood disaster risk or loss from a certain aspect， and the study area was mainly concentrated in the southern cities with more rainfall in China. In recent years， extreme rainstorm events occurred frequently in the cities with less rainfall in the north， but there are still few studies on the cities in the north. In this paper， the risk analysis method of urban flood disaster and the disaster loss assessment model are firstly constructed from the perspective of the whole link of flood disaster. Then， taking the extreme rainstorm flood disaster in July 2021 in Zhengzhou City in northern China as an example， the temporal and spatial distribution of flood disaster risk is qualitatively analyzed and the economic loss caused by flood disaster is quantitatively assessed. The flood disaster in Zhengzhou City is systematically analyzed. The results show that the flood disaster risk analysis method and loss assessment were able to accurately predict the occurrence area of flood disaster and estimate the loss of flood disaster. Flood disaster high risk area and high economic loss area coincide.
刘 海,刘 凤,郑 粮,陈晓玲. 风险分析与损失评估相结合的北方城市洪涝灾害研究——以郑州市2021年7月特大暴雨洪涝灾害为例[J]. 华中师范大学学报(自然科学版), 2023, 57(1): 59-68.
LIU Hai,LIU Feng,ZHENG Liang,CHEN Xiaoling. Research on flood disaster in northern cities combining risk analysis and loss assessment：taking the heavy rainstorm and flood disaster in Zhengzhou City in July 2021 as an example. journal1, 2023, 57(1): 59-68.
2023, Vol. 57 
