A methodological framework for selecting an optimal sediment source within a littoral cell
| Autor: | Vicente Gracia, C. Mösso, Manuel García-León, Joan Pau Sierra, Alberto Caballero |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya. Laboratori d'Enginyeria Marítima, Universitat Politècnica de Catalunya. LIM/UPC - Laboratori d'Enginyeria Marítima |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
Coastal management Methodological framework Coastal flooding Sediment General Medicine Management Monitoring Policy and Law Littoral cell Sediment recycling Coastal erosion Bathing Beaches Wave storm Geography Work (electrical) Enginyeria civil::Enginyeria hidràulica marítima i sanitària::Ports i costes [Àrees temàtiques de la UPC] Canvis costaners -- Catalunya Christian ministry Coast changes--Spain Coastal flood Water resource management Waste Management and Disposal Sea level |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | One of the most used measures to counteract coastal erosion is beach nourishment. It has advantages with respect to the use of rigid structures that sometimes entail non desired impacts on the surrounding areas. However, beach nourishments are often unsuccessful, requiring frequent refills due to the use of sediments that are not suitable. In this paper, a methodological framework for increasing the probability of success of beach nourishment pro-jects is presented. First, this framework consists of detecting potential borrowing areas, by analysing shoreline evolution and selecting the stretch that shows a more accretive character. Once the borrowing area has been identified, several sand extraction options are defined. The beach response (in terms of erosion and flooding) to each sand extraction alternative is analysed by using two numerical models, which simulate the hydro- morphodynamic patterns in the studied area. The numerical model results allow to find the best extraction alternative, which is that producing the least impact in the borrow area. As an example, the methodology is applied to a stretch of the Catalan coast (NW Mediterranean) to illustrate its potential. The proposed method-ology shows to be a useful tool for helping coastal managers to optimize their available resources. The work described in this publication was funded by the Ministry of Economy and Competitiveness of Spain through the project COBALTO (Ref. CTM 2 017-88036-R). The authors are grateful to the Organismo Público Puertos del Estado (Spanish Port Authority) for providing wave and sea level data and to the Institut Cartogràfic i Geològic de Catalunya (ICGC) for providing cartographic information. The support of the Secretaria d'Universitats i Recerca del Departament d'Economia i Coneixement de la Generalitat de Catalunya (Ref 2017SGR773) is also acknowledged. |
| Databáze: | OpenAIRE |
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