Articles | Volume 29, issue 20
https://doi.org/10.5194/hess-29-5677-2025
https://doi.org/10.5194/hess-29-5677-2025
Research article
 | 
23 Oct 2025
Research article |  | 23 Oct 2025

Enhancing urban pluvial flood modeling through graph reconstruction of incomplete sewer networks

Ruidong Li, Jiapei Liu, Ting Sun, Jian Shao, Fuqiang Tian, and Guangheng Ni

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Cited articles

Bakhshipour, A. E., Bakhshizadeh, M., Dittmer, U., Haghighi, A., and Nowak, W.: Hanging Gardens Algorithm to Generate Decentralized Layouts for the Optimization of Urban Drainage Systems, Journal of Water Resources Planning and Management, 145, 04019034, https://doi.org/10.1061/(ASCE)WR.1943-5452.0001103, 2019. a, b
Bakhshipour, A. E., Hespen, J., Haghighi, A., Dittmer, U., and Nowak, W.: Integrating Structural Resilience in the Design of Urban Drainage Networks in Flat Areas Using a Simplified Multi-Objective Optimization Framework, Water, 13, https://doi.org/10.3390/w13030269, 2021. a, b
Blumensaat, F., Wolfram, M., and Krebs, P.: Sewer model development under minimum data requirements, Environmental Earth Sciences, 65, 1427–1437, https://doi.org/10.1007/s12665-011-1146-1, 2012. a
Cao, X., Lyu, H., Ni, G., Tian, F., Ma, Y., and Grimmond, C.: Spatial Scale Effect of Surface Routing and Its Parameter Upscaling for Urban Flood Simulation Using a Grid-Based Model, Water Resources Research, 56, e2019WR025468, https://doi.org/10.1029/2019WR025468, 2020. a
Chegini, T. and Li, H.-Y.: An algorithm for deriving the topology of belowground urban stormwater networks, Hydrol. Earth Syst. Sci., 26, 4279–4300, https://doi.org/10.5194/hess-26-4279-2022, 2022. a, b
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Short summary
This work presents a new approach to simulate sewer drainage effects from incomplete information in the context of urban flooding, given missing information like flow directions and nodal depths. Tested in Yinchuan, China, our approach exhibits high accuracy in reproducing flood depths and reliably outperforms existing methods in various rainfall scenarios. Our method offers a reliable tool for cities with limited sewer data to improve flood simulation performance.
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