Morphological changes in the artificially embayed beaches of the Barcelona City (Spain)
[EN] The beaches of Barcelona acquired the present-day configuration on the occasion of the Olympic Games in 1992. Since then, they have become one of the hallmarks of the city, and one of its busiest places. These beaches are artificial and there is no natural sediment supply, so that there have been numerous actions for maintenance and regeneration during this period. Faced with stabilization actions aimed to reduce the dynamism of the beaches (trying to maintain a minimum width of the emerged beach), natural processes occur in the form of storms events, redistributing the sediment and producing a sedimentary deficit which is not compensated by the arrival of new sediments. Morphological changes of these beaches were investigated based on video monitoring and topographic and bathymetric surveys. The transformation suffered by beaches since 2001 has been considerable: several nourishments, new beaches >built> in the area near the Besòs River, several beaches protected through submerged detached groins and emerged detached breakwaters. In spite of these efforts oriented to maintain the emerged beach area, Barcelona beaches have a negative sediment balance due to the redistribution of the sediment along and across the coastal zone. Therefore, they constitute an excellent >laboratory-scale> zone offering a unique opportunity to evaluate man-made actions. The purpose of this paper is to assess the changes in the morphodynamic processes that have taken place in the beaches of Barcelona induced by different actions taken during the past 15 years
| Main Authors: | , , |
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| Format: | artículo biblioteca |
| Published: |
Società toscana di scienze naturali
2017
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| Subjects: | Strutture di protezione, Ripascimenti artificiali, Spagna, Barcelona, Shoreline, Storm impacts, Sediment budget, Artificial nourishment, Protection structures, Budget sedimentario, Impatto di mareggiate, Linea di costa, Spain, |
| Online Access: | http://hdl.handle.net/10261/169729 |
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