CAJ | 학술논문

为了开展客观定量的暴雨洪涝灾害评估，探讨了基于暴雨洪涝淹没模型的暴雨洪涝灾害损失评估业务流程，其核心环节有两部分：估算因降水造成的淹没范围和建立适用的经济损失评估模型。其中暴雨洪涝淹没模型以最大坡降算法和曼宁公式计算暴雨洪涝汇流过程，通过给定汇流时间得到研究区域的淹没面积和水深；经济损失评估模型由直接经济损失和间接经济损失构成，直接经济损失由淹没范围内各类财产的价值乘以其相应的损失率得到。以武汉市江夏区2010年7月一次暴雨洪涝灾害过程为例给出了整个评估流程的实现过程，结果表明基于暴雨洪涝淹没模型的洪涝灾害损失评估业务流程物理意义清楚，表达了暴雨-径流-洪涝灾害全过程，可用以提高洪涝灾害影响评估的定量化程度，同时也为暴雨洪涝风险管理提供一定的依据。
위료개전객관정량적폭우홍로재해평고，탐토료기우폭우홍로엄몰모형적폭우홍로재해손실평고업무류정，기핵심배절유량부분：고산인강수조성적엄몰범위화건립괄용적경제손실평고모형。기중폭우홍로엄몰모형이최대파강산법화만저공식계산폭우홍로회류과정，통과급정회류시간득도연구구역적엄몰면적화수심；경제손실평고모형유직접경제손실화간접경제손실구성，직접경제손실유엄몰범위내각류재산적개치승이기상응적손실솔득도。이무한시강하구2010년7월일차폭우홍로재해과정위례급출료정개평고류정적실현과정，결과표명기우폭우홍로엄몰모형적홍로재해손실평고업무류정물리의의청초，표체료폭우-경류-홍로재해전과정，가용이제고홍로재해영향평고적정양화정도，동시야위폭우홍로풍험관리제공일정적의거。
To evaluate rainstorm and flood disaster objectively and quantitatively, in this study we discuss the operational procedure for rain-storm and flood disaster loss evaluation based on rainstorm and flood inundation model. The core components include estimating the inundat-ed area caused by rainstorm and establishing a suitable economic loss evaluation model. Of them, the rainstorm and flood inundation model is used to calculate the rainstorm and flood confluent process based on Deterministic Eight-node and Manning formula, and obtain the inundat-ed area and depth of research area by giving confluent time. The economic loss evaluation model is comprised of direct and indirect economic losses, and the direct economic loss is calculated by the cost of various types of property within the inundated area by the corresponding loss rate. Using the case of a rainstorm and flood disaster event of Wuhan Jiangxia in July 2010 as an example, in the paper we demonstrated the whole evaluation procedure. The results show that the operational procedure of the rainstorm and flood disaster loss evaluation based on the rainstorm and flood inundation model has a clear physical basis, which represents the whole process of rainstorm-runoff-flood disaster. Be-ing applied to day-to-day operation of disaster impact evaluation, it can improve the degree of its quantification, and offer a reference for rain-storm and flood risk management.