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Geosciences 2018, 8(5), 178; https://doi.org/10.3390/geosciences8050178

Hazard Assessment of Storm Events for the Portuguese Northern Coast

1
Department of Civil Engineering, School of Engineering, University of Minho, 4710-057 Braga, Portugal
2
Department of Civil Engineering, FCTUC—Polo II, University of Coimbra, 3030-788 Coimbra, Portugal
*
Author to whom correspondence should be addressed.
Received: 30 November 2017 / Revised: 18 April 2018 / Accepted: 9 May 2018 / Published: 14 May 2018
(This article belongs to the Special Issue Natural Hazards and Risks Assessment)
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Abstract

Coastal zones currently face severe weaknesses and are subject to high-risk situations. Tropical storm events can contribute to the occurrence of these high-risk situations by causing storm surges with high water levels and, consequently, episodes of wave-overtopping and coastal flooding. This work considers a series of storm scenarios and analyzes their impacts through numerical modeling. Firstly, historical storm tracks and intensities are characterized for the Portuguese northern coast in terms of probability of occurrence. Secondly, several storm events with a high potential of occurrence are generated using a specific tool of the DelftDashboard interface for Delft3D software. Hydrodynamic models are then used to generate an ensemble of simulations to assess the storms’ effects on coastal water levels. Based on the statistical data of the numerical modeling results, a synthesis of the coastal storms’ impacts at different locations within the study area is performed. Depending on the storm category, surge heights can reach 1.10 m above tide levels under simulated conditions on the Portuguese northwestern coast. View Full-Text
Keywords: coastal zones; storm events; Delft3D; DelftDashboard; numerical modeling coastal zones; storm events; Delft3D; DelftDashboard; numerical modeling
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Gomes, M.P.; Santos, L.; Pinho, J.L.; Antunes do Carmo, J.S. Hazard Assessment of Storm Events for the Portuguese Northern Coast. Geosciences 2018, 8, 178.

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