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Article

Multiannual Shore Morphodynamics of a Cuspate Foreland: Maspalomas (Gran Canaria, Canary Islands)

1
Grupo de Geología Marina y Ambiental (GEOMA), University of Vigo, 36310 Vigo, Spain
2
Centro de Estudos do Ambiente e do Mar (CESAM), Universidade de Aveiro, 3810-193 Aveiro, Portugal
3
Department of Physical, Chemical, and Geological Oceanography, Oceanographic Institute, University of São Paulo, São Paulo 05508–120, Brazil
4
Institute of Environmental and Marine Sciences (IMEDMAR-UCV), Catholic University of Valencia, 46001 Valencia, Spain
5
Department of Civil and Environmental, Universidad De La Costa, Barranquilla, Atlántico 080001, Colombia
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2019, 7(11), 416; https://doi.org/10.3390/jmse7110416
Received: 30 September 2019 / Revised: 10 November 2019 / Accepted: 12 November 2019 / Published: 14 November 2019
(This article belongs to the Section Coastal Engineering)
On a cuspate sandy foreland, the cycle of beach erosion and recovery is driven by the bi-directional approaches of wave climates, which also determine its specific shape. This work describes the seasonal morphodynamics of the Maspalomas natural cuspate foreland over a period of six years. This area, located in the south of Gran Canaria Island, consists of two beaches with different shoreline orientation, Maspalomas Beach and El Inglés Beach, converging to La Bajeta Tip at the head of the foreland. Shoreline variability and three-dimensional beach changes were measured and coupled to wave energy and longshore currents. From wave analysis, 112 storm events were identified over the period in focus. These events most frequently came from the northeast and in summer, which is consistent with the strong northeasterly trade winds between April and September. However, the strongest storms from the southwest were found to be the main cause of intense shoreline retreats, of up to 100 and 200 m, at Maspalomas Beach and La Bajeta Tip, respectively. The Maspalomas Beach sector showed interannual variability, with a general trend of erosion, whereas La Bajeta Tip demonstrated faster beach recovery. In contrast, El Inglés Beach sector presented a stable shoreline, in spite of the occurrence of wave storms approaching from northeast or southwest. Consequently, results indicate that energetic waves play a significant role in shoreline dynamics and Maspalomas landform shape. Post-storm sand recovery processes do not only occur during calm periods, but also during energetic events. The findings of this study have improved the understanding of seasonal and multiannual cuspate foreland morphodynamics, setting the groundwork for a potential long-term evolution model of Maspalomas coast. View Full-Text
Keywords: coast; wave storm energy; shoreline; beach erosion; beach recovery coast; wave storm energy; shoreline; beach erosion; beach recovery
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MDPI and ACS Style

Fontán-Bouzas, Á.; Alcántara-Carrió, J.; Albarracín, S.; Baptista, P.; Silva, P.A.; Portz, L.; Manzolli, R.P. Multiannual Shore Morphodynamics of a Cuspate Foreland: Maspalomas (Gran Canaria, Canary Islands). J. Mar. Sci. Eng. 2019, 7, 416. https://doi.org/10.3390/jmse7110416

AMA Style

Fontán-Bouzas Á, Alcántara-Carrió J, Albarracín S, Baptista P, Silva PA, Portz L, Manzolli RP. Multiannual Shore Morphodynamics of a Cuspate Foreland: Maspalomas (Gran Canaria, Canary Islands). Journal of Marine Science and Engineering. 2019; 7(11):416. https://doi.org/10.3390/jmse7110416

Chicago/Turabian Style

Fontán-Bouzas, Ángela, Javier Alcántara-Carrió, Silvia Albarracín, Paulo Baptista, Paulo A. Silva, Luana Portz, and Rogerio P. Manzolli. 2019. "Multiannual Shore Morphodynamics of a Cuspate Foreland: Maspalomas (Gran Canaria, Canary Islands)" Journal of Marine Science and Engineering 7, no. 11: 416. https://doi.org/10.3390/jmse7110416

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