Sediment dispersal from a typical Mediterranean flood: The Têt River, Gulf of Lions
Special issue Sediment Dynamics in the Gulf of Lions; the Impact of Extreme Events.-- 16 pages, 13 figures
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Pergamon Press
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| Subjects: | Gulf of Lions, Northwestern Mediterranean, Têt River, Hypopycnal river plume, Sediment transport, Flash-flood, |
| Online Access: | http://hdl.handle.net/10261/107580 |
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dig-icm-es-10261-1075802020-12-09T15:51:23Z Sediment dispersal from a typical Mediterranean flood: The Têt River, Gulf of Lions Bourrin, F. Friend, P.L. Amos, C.L. Manca, E. Ulses, Caroline Palanques, Albert Durrieu de Madron, Xavier Thompson, C.E.L. Gulf of Lions Northwestern Mediterranean Têt River Hypopycnal river plume Sediment transport Flash-flood Special issue Sediment Dynamics in the Gulf of Lions; the Impact of Extreme Events.-- 16 pages, 13 figures This paper describes an integrated study of a typical Mediterranean flood event in the Gulf of Lions. A flood with a 5-year return interval occurred in the Têt River basin and adjacent inner-shelf in the Gulf of Lions, northwest Mediterranean, during April 2004. Data were collected during this flood as part of event-response investigations of the EU-funded Eurostrataform (European Margin Strata Formation) project. Southeasterly storm winds led to a flood which directly modified the inner-shelf hydrodynamics. Sediment delivery to the coastal zone during this flood represented more than half of the mean annual discharge of the Têt River to the Gulf of Lions. This river transported a large amount of sand in suspension, representing 25% of the total suspended load, and as bedload representing 8% of the total load, during this event. Sand introduced in the nearshore was transported northwards during the peak storm and nourished a small delta. Fine sediments were separated from coarse sediments at the river mouth, and were advected southwards and seawards by the counter-clockwise general circulation. Fine-grained sediments were transported via a hypopycnal plume along the coast towards the southern tip of the Gulf of Lions and the Cap Creus canyon. The along-shore currents, which intensified from north to south of the Gulf of Lions, particularly between the Cap Creus promontory and the Cap Creus canyon, favoured the transfer of fine-grained sediments from the continental shelf of the Gulf of Lions towards the continental slope. Our results show that floods with a few-year return interval in small coastal rivers can play a significant role in the transport of sediments on microtidal continental margins and their export from the shelf through canyons. © 2008 This work was supported by the European project Eurostrataform (contract number EVK3-CT-2002-00079) Peer Reviewed 2008-08-30 2014-11-14T10:09:19Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1016/j.csr.2008.06.005 issn: 0278-4343 e-issn: 1873-6955 Continental Shelf Research 28(15): 1895-1910 (2008) http://hdl.handle.net/10261/107580 10.1016/j.csr.2008.06.005 https://doi.org/10.1016/j.csr.2008.06.005 none Pergamon Press |
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Gulf of Lions Northwestern Mediterranean Têt River Hypopycnal river plume Sediment transport Flash-flood Gulf of Lions Northwestern Mediterranean Têt River Hypopycnal river plume Sediment transport Flash-flood |
| spellingShingle |
Gulf of Lions Northwestern Mediterranean Têt River Hypopycnal river plume Sediment transport Flash-flood Gulf of Lions Northwestern Mediterranean Têt River Hypopycnal river plume Sediment transport Flash-flood Bourrin, F. Friend, P.L. Amos, C.L. Manca, E. Ulses, Caroline Palanques, Albert Durrieu de Madron, Xavier Thompson, C.E.L. Sediment dispersal from a typical Mediterranean flood: The Têt River, Gulf of Lions |
| description |
Special issue Sediment Dynamics in the Gulf of Lions; the Impact of Extreme Events.-- 16 pages, 13 figures |
| format |
artículo |
| topic_facet |
Gulf of Lions Northwestern Mediterranean Têt River Hypopycnal river plume Sediment transport Flash-flood |
| author |
Bourrin, F. Friend, P.L. Amos, C.L. Manca, E. Ulses, Caroline Palanques, Albert Durrieu de Madron, Xavier Thompson, C.E.L. |
| author_facet |
Bourrin, F. Friend, P.L. Amos, C.L. Manca, E. Ulses, Caroline Palanques, Albert Durrieu de Madron, Xavier Thompson, C.E.L. |
| author_sort |
Bourrin, F. |
| title |
Sediment dispersal from a typical Mediterranean flood: The Têt River, Gulf of Lions |
| title_short |
Sediment dispersal from a typical Mediterranean flood: The Têt River, Gulf of Lions |
| title_full |
Sediment dispersal from a typical Mediterranean flood: The Têt River, Gulf of Lions |
| title_fullStr |
Sediment dispersal from a typical Mediterranean flood: The Têt River, Gulf of Lions |
| title_full_unstemmed |
Sediment dispersal from a typical Mediterranean flood: The Têt River, Gulf of Lions |
| title_sort |
sediment dispersal from a typical mediterranean flood: the têt river, gulf of lions |
| publisher |
Pergamon Press |
| url |
http://hdl.handle.net/10261/107580 |
| work_keys_str_mv |
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