水资源与水工程学报2025，Vol.36Issue(5)：57-64,8.DOI:10.11705/j.issn.1672-643X.2025.05.07
城市化地区蓄涝水面率的快速量化方法与参数敏感性分析——以广州市中心城区为例
Rapid quantification method and parameter sensitivity analysis of waterlogging water surface ratio in urbanized areas:A case study of Guangzhou downtown area
摘要
Abstract
As the urban waterlogging issue grows increasingly prominent,rapid quantification of the water surface ratio of waterlogging has become an integral part of improving the efficiency of urban stormwater management.Based on the water balance equation and the theory of stormwater volume calculation,this study derives an analytical formula that links the water surface ratio of waterlogging to the key parameters of rainfall intensity,land area composite runoff coefficient,catchment concentration time,and storage depth.By substituting the proposed closed-form solution for the conventional iterative algorithm,the wa-ter surface ratio of waterlogging can be quantified rapidly and explicitly.Taking the central urban area of Guangzhou as a case study,this paper systematically evaluates how the water surface ratio of waterlogging responds to variations in the study area,storage depths,rainfall durations,and rainfall return periods.The results show that the water surface ratio of waterlogging is positively correlated with the rainstorm in-tensity,land area composite runoff coefficient,and catchment concentration time;but negatively correla-ted with the storage water depth.The water surface ratio of waterlogging increases with the increase of the rainfall return period and rainfall duration,while decreases with the increase of the study area.When the storage depth is less than 0.7 m,the water surface ratio of waterlogging decreases significantly with the increase of storage depth.Sobol global sensitivity analysis further indicates that the storage depth is the dominant parameter,followed by the rainfall return period;whereas the study area and rainfall duration exhibit only minor influences.This method provides an expeditious accounting program to quantify water surface ratio of waterlogging for urban flood control and sponge city planning.关键词
雨洪控制/蓄涝水面率/快速量化/敏感性分析/城市化地区Key words
stormwater flood control/water surface ratio of waterlogging/rapid quantification/sensitivity analysis/urbanized area分类
建筑与水利引用本文复制引用
麦叶鹏,程菲,解河海,黄国如,马学良,赵晓莺..城市化地区蓄涝水面率的快速量化方法与参数敏感性分析——以广州市中心城区为例[J].水资源与水工程学报,2025,36(5):57-64,8.基金项目
广东省基础与应用基础研究基金项目(2023A1515010754) （2023A1515010754）
海南大学科研启动经费项目(KYQD(ZR)23131) （KYQD(ZR）
国家自然科学基金青年基金项目(52408076) （52408076）
