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Development and Comparison of Two Fast Surrogate Models for Urban Pluvial Flood Simulations

Author

Listed:
  • María Bermúdez

    (KU Leuven
    Universidade da Coruña)

  • Victor Ntegeka

    (KU Leuven)

  • Vincent Wolfs

    (KU Leuven)

  • Patrick Willems

    (KU Leuven)

Abstract

Detailed full hydrodynamic 1D-2D dual drainage models are a well-established approach to simulate urban pluvial floods. However, despite modelling advances and increasing computational power, this approach remains unsuitable for many real time applications. We propose and test two computationally efficient surrogate models. The first approach links a detailed 1D sewer model to a GIS-based overland flood network. For the second approach, we developed a conceptual sewer and flood model using data-driven and physically based structures, and coupled the model to pre-simulated flood maps. The city of Ghent (Belgium) is used as a test case. Both surrogate models can provide comparable results to the original model in terms of peak surface flood volumes and maximum flood extent and depth maps, with a significant reduction in computing time.

Suggested Citation

  • María Bermúdez & Victor Ntegeka & Vincent Wolfs & Patrick Willems, 2018. "Development and Comparison of Two Fast Surrogate Models for Urban Pluvial Flood Simulations," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 32(8), pages 2801-2815, June.
    • Handle: RePEc:spr:waterr:v:32:y:2018:i:8:d:10.1007_s11269-018-1959-8
    DOI: 10.1007/s11269-018-1959-8
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    References listed on IDEAS

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    1. Vincent Wolfs & Patrick Willems, 2017. "Modular Conceptual Modelling Approach and Software for Sewer Hydraulic Computations," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 31(1), pages 283-298, January.
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    Cited by:

    1. María Bermúdez & Andreas Paul Zischg, 2018. "Sensitivity of flood loss estimates to building representation and flow depth attribution methods in micro-scale flood modelling," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 92(3), pages 1633-1648, July.
    2. Elena Cristiano & Roberto Deidda & Francesco Viola, 2020. "EHSMu: a New Ecohydrological Streamflow Model to Estimate Runoff in Urban Areas," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 34(15), pages 4865-4879, December.
    3. Sandra Costa & Rik Peters & Ricardo Martins & Luuk Postmes & Jan Jacob Keizer & Peter Roebeling, 2021. "Effectiveness of Nature-Based Solutions on Pluvial Flood Hazard Mitigation: The Case Study of the City of Eindhoven (The Netherlands)," Resources, MDPI, vol. 10(3), pages 1-14, March.
    4. Vasilis Bellos & Ino Papageorgaki & Ioannis Kourtis & Harris Vangelis & Ioannis Kalogiros & George Tsakiris, 2020. "Reconstruction of a flash flood event using a 2D hydrodynamic model under spatial and temporal variability of storm," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 101(3), pages 711-726, April.
    5. Linhan Yang & Jianzhu Li & Aiqing Kang & Shuai Li & Ping Feng, 2020. "The Effect of Nonstationarity in Rainfall on Urban Flooding Based on Coupling SWMM and MIKE21," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 34(4), pages 1535-1551, March.
    6. Shadi Arfa & Mohsen Nasseri & Hassan Tavakol-Davani, 2021. "Comparing the Effects of Different Daily and Sub-Daily Downscaling Approaches on the Response of Urban Stormwater Collection Systems," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 35(2), pages 505-533, January.

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