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Apr 26, 2012
Effect of Inlet Morphology and Wave Action on Pollutant Pathways and Sediment Dynamics in a Coastal Stream
Authors: Anabela Oliveira [email protected]., André B. Fortunato [email protected]., Martha Guerreiro [email protected]., Xavier Bertin [email protected]., Nicolas Bruneau [email protected]., Marta Rodrigues [email protected]., Rui Taborda [email protected]., … Show All … , César Andrade [email protected]., Ana Maria Silva [email protected]., Carlos Antunes [email protected]., Paula Freire [email protected]., L. Simões Pedro [email protected]., Guillaume Dodet [email protected]., Carlos Loureiro [email protected]., and Ana Mendes [email protected]. Show FewerAuthor Affiliations
Publication: Estuarine and Coastal Modeling (2009)
Abstract
Hydrodynamics and water renewal of intermittent coastal streams are highly variable, at various time scales, due to the very active morphodynamic behavior of their inlets. Due to this strong dynamics, the pathways of water-borne materials — and the consequences of contaminated discharges — can depend strongly on the morphology and environmental conditions. Predicting the fate of contaminants in these systems requires coupled numerical models accounting for the major physical and water quality processes. We aim at improving the understanding of the impact of inlet morphology and wave action on the pollutant and sediment pathways of these small coastal systems, based on a suite of calibrated and validated coupled models. Two analyses, based on particle simulations, are presented to assess sediment dynamics and pollutant pathways for several conditions. Results show that waves have a major effect on the fate of water-borne materials in the estuary. Wave-induced currents sweep away materials coming out of the estuary, while wave-induced setup has a profound effect on tidal propagation, water levels and velocities in the estuary, promoting the upstream transport of pollutants.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
Faculdade de Ciěncias da Universidade de Lisboa, Campo Grande, Ed. C6, 1749-016 Lisboa, Portugal.E-mail: [email protected].
Faculdade de Ciěncias da Universidade de Lisboa, Campo Grande, Ed. C6, 1749-016 Lisboa, Portugal.E-mail: [email protected].
Faculdade de Ciěncias da Universidade de Lisboa, Campo Grande, Ed. C6, 1749-016 Lisboa, Portugal.E-mail: [email protected].
Faculdade de Ciěncias da Universidade de Lisboa, Campo Grande, Ed. C6, 1749-016 Lisboa, Portugal.E-mail: [email protected].
National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
Faculdade de Ciěncias da Universidade de Lisboa, Campo Grande, Ed. C6, 1749-016 Lisboa, Portugal; and National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
CIMA, Universidade do Algarve, Campus de Gambelas. Ed. 7. 8005-139 Faro, Portugal.E-mail: [email protected].
National Laboratory for Civil Engineering, Av. do Brasil, 101, 1700-066 Lisbon, Portugal.E-mail: [email protected].
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