Early warning system for floods at estuarine areas: combining artificial intelligence with process-based models
Willian Weber de Melo (),
Isabel Iglesias and
José Pinho
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Willian Weber de Melo: University of Minho
Isabel Iglesias: University of Porto, Terminal de Cruzeiros do Porto de Leixões
José Pinho: University of Minho
Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2025, vol. 121, issue 4, No 35, 4615-4638
Abstract:
Abstract Floods are among the most common natural disasters, causing countless losses every year worldwide and demanding urgent measures to mitigate their impacts. This study proposes a novel combination of artificial intelligence and process-based models to construct a flood early warning system (FEWS) for estuarine regions. Using streamflow and rainfall data, a deep learning model with long short-term memory layers was used to forecast the river discharge at the fluvial boundary of an estuary. Afterwards, a hydrodynamic process-based model was used to simulate water levels in the estuary. The river discharge predictors were trained using different forecasting windows varying from 3 h to 36 h to assess the relationship between the time window and accuracy. The insertion of attention layers into the network architecture was evaluated to enhance forecasting capacity. The FEWS was implemented in the Douro River Estuary, a densely urbanised flood-prone area in northern Portugal. The results demonstrated that the Douro Estuary FEWS is reliable for discharges up to 5000 m3/s, with predictions made 36 h in advance. For values higher than this, the uncertainties in the model predictions increased; however, they were still capable of detecting flood occurrences.
Keywords: Flood early warning system; Deep learning; Numerical modelling; Long short-term memory neural networks; TensorFlow; Douro river; Disaster risk reduction (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:121:y:2025:i:4:d:10.1007_s11069-024-06957-8
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DOI: 10.1007/s11069-024-06957-8
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