Combined beach - inner shelf erosion in short and medium term (Maspalomas, Canary Islands)
The analysis of the accurate topo-bathymetric digital elevation model (DEM), the cartography of the submarine sedimentary cover and the monitoring of short (seasonal) and medium-term (2000-2009) morphological changes have permitted depicting the erosional trend in the short and medium-term of the M...
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| Format: | Article |
| Language: | English |
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Universitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB)
2013-07-01
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| Series: | Geologica Acta |
| Subjects: | |
| Online Access: | https://revistes.ub.edu/index.php/GEOACTA/article/view/7449 |
| _version_ | 1827788136619442176 |
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| author | A. FONTÁN J. ALCÁNTARA-CARRIÓ I.D. CORREA |
| author_facet | A. FONTÁN J. ALCÁNTARA-CARRIÓ I.D. CORREA |
| author_sort | A. FONTÁN |
| collection | DOAJ |
| description |
The analysis of the accurate topo-bathymetric digital elevation model (DEM), the cartography of the submarine sedimentary cover and the monitoring of short (seasonal) and medium-term (2000-2009) morphological changes have permitted depicting the erosional trend in the short and medium-term of the Maspalomas sedimentary system. Short-term analysis showed intense sedimentary fluxes between the beaches and the inner shelf, and sedimentary exchanges with other sectors of the inner shelf, while the steep slope inner shelf fronting La Bajeta cape was identified as a sink area. In the medium-term the sediment budget showed high erosion of the supratidal and intertidal sectors of the beaches due to storm waves in the 2005-2006 winter, followed by accretion over the next four years, but which did not reach the initial sedimentary state. The inner shelf and subtidal sector of the beaches showed negative budgets in the short and medium-term. Interannual variability of the wave and wind regimes determines decadal beach erosion-accretion cycles, while long-term climatic change, evidenced at the study area by a decrease of trade winds and NE wave intensity in 2005, is expected to produce a possible increase of erosion at the El Inglés inner shelf and consequently a decrease in sediment inputs to the El Inglés beach and Maspalomas dune field. Finally, the influence of the geological heritage is depicted by the Fataga gully’s control of the present coastal morphology, and by the island relief control of the wind, waves and current directions in the study area.
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| first_indexed | 2024-03-11T17:03:15Z |
| format | Article |
| id | doaj.art-632508bb7d6c47b5b102bf2d2495f04c |
| institution | Directory Open Access Journal |
| issn | 1696-5728 |
| language | English |
| last_indexed | 2024-03-11T17:03:15Z |
| publishDate | 2013-07-01 |
| publisher | Universitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB) |
| record_format | Article |
| series | Geologica Acta |
| spelling | doaj.art-632508bb7d6c47b5b102bf2d2495f04c2023-10-20T07:05:41ZengUniversitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB)Geologica Acta1696-57282013-07-01104Combined beach - inner shelf erosion in short and medium term (Maspalomas, Canary Islands)A. FONTÁN0J. ALCÁNTARA-CARRIÓ1I.D. CORREA2Instituto de Medio Ambiente y Ciencia Marina, Universidad Católica de Valencia. C/ Guillem de Castro 94, 46003 Valencia, Spain. Fax: (+34) 963153655Instituto de Medio Ambiente y Ciencia Marina, Universidad Católica de Valencia. C/ Guillem de Castro 94, 46003 Valencia, Spain. Fax: (+34) 963153655Área de Ciencias del Mar, Universidad EAFITCra. 49 Nº. 7 Sur 50, Medellín, Colombia. Email: 1correa@eafit.edu.co. Fax: (+57) 42664284 The analysis of the accurate topo-bathymetric digital elevation model (DEM), the cartography of the submarine sedimentary cover and the monitoring of short (seasonal) and medium-term (2000-2009) morphological changes have permitted depicting the erosional trend in the short and medium-term of the Maspalomas sedimentary system. Short-term analysis showed intense sedimentary fluxes between the beaches and the inner shelf, and sedimentary exchanges with other sectors of the inner shelf, while the steep slope inner shelf fronting La Bajeta cape was identified as a sink area. In the medium-term the sediment budget showed high erosion of the supratidal and intertidal sectors of the beaches due to storm waves in the 2005-2006 winter, followed by accretion over the next four years, but which did not reach the initial sedimentary state. The inner shelf and subtidal sector of the beaches showed negative budgets in the short and medium-term. Interannual variability of the wave and wind regimes determines decadal beach erosion-accretion cycles, while long-term climatic change, evidenced at the study area by a decrease of trade winds and NE wave intensity in 2005, is expected to produce a possible increase of erosion at the El Inglés inner shelf and consequently a decrease in sediment inputs to the El Inglés beach and Maspalomas dune field. Finally, the influence of the geological heritage is depicted by the Fataga gully’s control of the present coastal morphology, and by the island relief control of the wind, waves and current directions in the study area. https://revistes.ub.edu/index.php/GEOACTA/article/view/7449Coastal geomorphologySedimentsBudgetStormsClimatic change |
| spellingShingle | A. FONTÁN J. ALCÁNTARA-CARRIÓ I.D. CORREA Combined beach - inner shelf erosion in short and medium term (Maspalomas, Canary Islands) Geologica Acta Coastal geomorphology Sediments Budget Storms Climatic change |
| title | Combined beach - inner shelf erosion in short and medium term (Maspalomas, Canary Islands) |
| title_full | Combined beach - inner shelf erosion in short and medium term (Maspalomas, Canary Islands) |
| title_fullStr | Combined beach - inner shelf erosion in short and medium term (Maspalomas, Canary Islands) |
| title_full_unstemmed | Combined beach - inner shelf erosion in short and medium term (Maspalomas, Canary Islands) |
| title_short | Combined beach - inner shelf erosion in short and medium term (Maspalomas, Canary Islands) |
| title_sort | combined beach inner shelf erosion in short and medium term maspalomas canary islands |
| topic | Coastal geomorphology Sediments Budget Storms Climatic change |
| url | https://revistes.ub.edu/index.php/GEOACTA/article/view/7449 |
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