水资源保护2026，Vol.42Issue(3)：81-91,11.DOI:10.3880/j.issn.1004-6933.2026.03.010
基于超分辨率重建方法的城市内涝快速精细模拟
Rapid and precise simulation of urban waterlogging based on super-resolution reconstruction method
摘要
Abstract
In response to the difficulty of balancing the efficiency and accuracy of physical mechanism models in urban waterlogging simulation,a fast and precise simulation method for urban waterlogging based on U-Net super-resolution reconstruction was proposed.By using coarse accuracy waterlogging results as physical priors,a fast mapping of waterlogging distribution from coarse accuracy to fine accuracy was achieved.The Minzhi area of Shenzhen City was selected as the study area.Two sets of hydrodynamic simulation grids,coarse and fine,were constructed,combining terrain and its derived features as multi-channel inputs to train the deep learning model,and the simulation results were compared with the one-dimensional two-dimensional coupled hydrodynamic model.The results show that the super-resolution reconstruction method can accurately restore the spatial pattern and peak characteristics of ponding under most design rainstorm scenarios.The Nash efficiency coefficient generally exceeds 0.9,and the root mean square error is less than 0.15.Compared with the one-dimensional two-dimensional coupled hydrodynamic model,the efficiency of the simulation of the 2h rainstorm process is 50.71 times higher.With the increase of rainstorm return period,the super-resolution reconstruction method is more stable for the reconstruction of the overall ponding characteristics,but there is still a deviation in the local low-lying areas and areas with complex pipe network.关键词
城市内涝模拟/超分辨率重建方法/深度学习模型/水动力模型/深圳市Key words
urban waterlogging simulation/super-resolution reconstruction method/deep learning model/hydrodynamic model/Shenzhen City引用本文复制引用
陈文杰,黄俊烽,梅超,黄国如,刘家宏..基于超分辨率重建方法的城市内涝快速精细模拟[J].水资源保护,2026,42(3):81-91,11.基金项目
国家自然科学基金项目(52579011) （52579011）
鄂尔多斯市科技重大专项项目(ZD20232323) （ZD20232323）
