Development and Comparison of Two Fast Surrogate Models for Urban Pluvial Flood Simulations
| Autor: | Vincent Wolfs, Victor Ntegeka, María Bermúdez, Patrick Willems |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Urban floods
Hydrogeology 010504 meteorology & atmospheric sciences Flood myth 0208 environmental biotechnology 02 engineering and technology Pluvial flooding Computational hydraulics Surrogate modelling 01 natural sciences Civil engineering Modelling 020801 environmental engineering Reduction (complexity) Pluvial Environmental science Drainage 0105 earth and related environmental sciences Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Water Resources Management. 32:2801-2815 |
| ISSN: | 1573-1650 0920-4741 |
| DOI: | 10.1007/s11269-018-1959-8 |
| Popis: | 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. ispartof: Water Resources Management vol:32 issue:8 pages:2801-2815 status: published |
| Databáze: | OpenAIRE |
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