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An Ex-Situ Immobilization Experiment with Zn, Pb, and Cu in Dredged Marine Sediments from Bohai Bay, China
 
 
Article

Assessment of Dredging Scenarios for a Tidal Inlet in a High-Energy Coast

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CESAM & Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal
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CESAM & Department of Geoscience, University of Aveiro, 3810-193 Aveiro, Portugal
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IDL & Faculty of Sciences, University of Lisboa, 1749-016 Lisbon, Portugal
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GEOMA & Department of Geosciences, University of Vigo, 36310 Vigo, Spain
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CESAM & Department of Civil Engineering, Polytechnic of Porto, 4249-015 Porto, Portugal
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UMR 7266 LIENS, CNRS- University of La Rochelle, 17000 La Rochelle, France
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2019, 7(11), 395; https://doi.org/10.3390/jmse7110395
Received: 17 October 2019 / Revised: 31 October 2019 / Accepted: 4 November 2019 / Published: 6 November 2019
(This article belongs to the Section Coastal Engineering)
The high energetic wave climate of the North Atlantic Ocean causes important morphological changes at Figueira da Foz coastal system (W Portugal), which is comprised of sandy beaches and the Mondego estuary-inlet. The submerged sandbar at the inlet mouth is highly dynamic inducing short waves shoaling and breaking processes that can entail navigation problems towards the local harbor. Therefore, coastal dredging operations are performed to guarantee safe navigation. Nevertheless, these operations have a limited temporal effectiveness and require a high annual budget to be accomplished. The goal of this research is to seek long-life dredging alternatives using modeling tools (i.e., Delft3D model suite). Delft3D model is used to simulate the morphological evolution of five dredging scenarios during a three-month winter period under three wave climate scenarios. The bed level differences at the dredged area and at the inlet mouth for each scenario are analyzed in comparison with numerical solutions obtained in a reference scenario (i.e., no-dredging). Results highlight morphological changes at the dredged inlet and surrounding areas and their effectiveness in extending the operational lifetime of inlet dredged operations on dredging configuration and wave climate conditions. These findings are the basis for selecting the most suitable dredging scenario to this coastal region under current wave climate conditions. View Full-Text
Keywords: Delft3D model; maintenance dredging; storm wave conditions; Figueira da Foz coastal system Delft3D model; maintenance dredging; storm wave conditions; Figueira da Foz coastal system
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MDPI and ACS Style

Fernández-Fernández, S.; Ferreira, C.C.; Silva, P.A.; Baptista, P.; Romão, S.; Fontán-Bouzas, Á.; Abreu, T.; Bertin, X. Assessment of Dredging Scenarios for a Tidal Inlet in a High-Energy Coast. J. Mar. Sci. Eng. 2019, 7, 395. https://doi.org/10.3390/jmse7110395

AMA Style

Fernández-Fernández S, Ferreira CC, Silva PA, Baptista P, Romão S, Fontán-Bouzas Á, Abreu T, Bertin X. Assessment of Dredging Scenarios for a Tidal Inlet in a High-Energy Coast. Journal of Marine Science and Engineering. 2019; 7(11):395. https://doi.org/10.3390/jmse7110395

Chicago/Turabian Style

Fernández-Fernández, Sandra, Caroline C. Ferreira, Paulo A. Silva, Paulo Baptista, Soraia Romão, Ángela Fontán-Bouzas, Tiago Abreu, and Xavier Bertin. 2019. "Assessment of Dredging Scenarios for a Tidal Inlet in a High-Energy Coast" Journal of Marine Science and Engineering 7, no. 11: 395. https://doi.org/10.3390/jmse7110395

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