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Article

Shoreline Response to a Sandy Nourishment in a Wave-Dominated Coast Using Video Monitoring

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Department of Environmental Sciences and Engineering, NOVA School of Science and Technology, NOVA University Lisbon/MARE-Marine and Environmental Sciences, Campus da Caparica, 2829-516 Caparica, Portugal
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INESC Coimbra, Department of Electrical and Computer Engineering, Rua Sílvio Lima, Polo II, 3030-290 Coimbra, Portugal
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Author to whom correspondence should be addressed.
Water 2020, 12(6), 1632; https://doi.org/10.3390/w12061632
Received: 20 May 2020 / Revised: 30 May 2020 / Accepted: 4 June 2020 / Published: 6 June 2020
(This article belongs to the Section Oceans and Coastal Zones)
Beach nourishment is a soft engineering intervention that supplies sand to the shore, to increase the beach recreational area and to decrease coastal vulnerability to erosion. This study presents the preliminary evaluation of nourishment works performed at the high-energy wave-dominated Portuguese coast. The shoreline was adopted as a proxy to study beach evolution in response to nourishment and to wave forcing. To achieve this aim, images collected by a video monitoring system were used. A nourishment calendar was drawn up based on video screening, highlighting the different zones and phases where the works took place. Over the six-month monitoring period, a total amount of 25 video-derived shorelines were detected by both manual and automated procedures on video imagery. Nourishment works, realized in summer, enlarged the emerged beach extension by about 90 m on average. During winter, the shoreline retreated about 50 m due to wave forcing. Spatial analysis showed that the northern beach sector was more vulnerable and subject to erosion, as it is the downdrift side of the groin. View Full-Text
Keywords: beach; nearshore; remote sensing; erosion; sand beach; nearshore; remote sensing; erosion; sand
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MDPI and ACS Style

Jóia Santos, C.; Andriolo, U.; Ferreira, J.C. Shoreline Response to a Sandy Nourishment in a Wave-Dominated Coast Using Video Monitoring. Water 2020, 12, 1632. https://doi.org/10.3390/w12061632

AMA Style

Jóia Santos C, Andriolo U, Ferreira JC. Shoreline Response to a Sandy Nourishment in a Wave-Dominated Coast Using Video Monitoring. Water. 2020; 12(6):1632. https://doi.org/10.3390/w12061632

Chicago/Turabian Style

Jóia Santos, Catarina, Umberto Andriolo, and José C. Ferreira 2020. "Shoreline Response to a Sandy Nourishment in a Wave-Dominated Coast Using Video Monitoring" Water 12, no. 6: 1632. https://doi.org/10.3390/w12061632

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