Deep sediment transport induced by storms and dense shelf-water cascading in the northwestern Mediterranean basin

Deep sediment transport induced by storms and dense shelf-water cascading in the northwestern Mediterranean basin

10 pages, 7 figures

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Bibliographic Details
Main Authors: Palanques, Albert, Puig, Pere, Latasa, Mikel, Scharek, Renate
Format: artículo biblioteca
Language:English
Published: Elsevier 2009-03
Subjects:Shelf to basin sediment transport, Downward particle fluxes, Storms, Dense shelf water cascading, Northwestern Mediterranean, Gulf of Lions,
Online Access:http://hdl.handle.net/10261/15624
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spelling dig-icm-es-10261-156242020-11-19T08:19:59Z Deep sediment transport induced by storms and dense shelf-water cascading in the northwestern Mediterranean basin Palanques, Albert Puig, Pere Latasa, Mikel Scharek, Renate Shelf to basin sediment transport Downward particle fluxes Storms Dense shelf water cascading Northwestern Mediterranean Gulf of Lions 10 pages, 7 figures Downward particle fluxes and hydrodynamics in the northwestern Mediterranean basin were measured by a sediment trap and a current meter deployed at 2350 m depth, 250 m above bottom, from November 2003 to April 2005. During the winter of 2003–2004 there were high river discharges, two strong E–SE storms and several moderate storms and short periods of moderate dense shelf-water cascading during which dense shelf water did not reach the deep basin. Downward particle fluxes at the basin site were low during most of this winter but increased above one order of magnitude as a consequence of the strong storm and moderate cascading event that occurred in late February 2004. During the winter of 2004–2005, neither important river floods nor strong storms occurred but there were very intense and persistent dense shelf-water cascading events from February to April 2005. Dense shelf water, mixed with offshore convection water, reached the basin site in early March 2005, increasing downward particle fluxes by more than two orders of magnitude for more than 1 month. These observations indicate that events of significant sediment transport to the northwestern Mediterranean basin can be caused by severe winter E–SE storms associated with moderate cascading events or by exceptionally intense and persistent dense shelf-water cascading episodes alone. On the other hand, river floods, severe storms during water column stratification conditions (without cascading) and moderate storms concurrent with moderate dense shelf-water cascading did not generate sediment transport events able to reach the basin This study was supported by the Project “EFLUBIO” REN2002-04151-C02-01/MAR (Spanish Ministry of Education and Science). Additional funding was obtained from the Generalitat de Catalunya (2002PIRA00297) and the CSIC. We are grateful to G. Vila and S. de Diago for providing technical support. We thank the officers and crew of the R/V García del Cid and Cornide de Saavedra for their help and dedication during the cruises. Water discharge data were supplied by the “Compagnie Nationale du Rhone” and the “Banque HYDRO” of the French Ministry of Environment and wave data by Dr. Xavier Durrieu de Madron from CEFREM, CNRS, UMR 5110, University of Perpignan Peer reviewed 2009-08-04T06:57:15Z 2009-08-04T06:57:15Z 2009-03 artículo http://purl.org/coar/resource_type/c_6501 Deep Sea Research I: Oceanographic Research Papers 56(3): 425-434 (2009) 0967-0637 http://hdl.handle.net/10261/15624 10.1016/j.dsr.2008.11.002 en https://doi.org/10.1016/j.dsr.2008.11.002 none 2946852 bytes application/pdf Elsevier
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Shelf to basin sediment transport
Downward particle fluxes
Storms
Dense shelf water cascading
Northwestern Mediterranean
Gulf of Lions
Shelf to basin sediment transport
Downward particle fluxes
Storms
Dense shelf water cascading
Northwestern Mediterranean
Gulf of Lions
spellingShingle Shelf to basin sediment transport
Downward particle fluxes
Storms
Dense shelf water cascading
Northwestern Mediterranean
Gulf of Lions
Shelf to basin sediment transport
Downward particle fluxes
Storms
Dense shelf water cascading
Northwestern Mediterranean
Gulf of Lions
Palanques, Albert
Puig, Pere
Latasa, Mikel
Scharek, Renate
Deep sediment transport induced by storms and dense shelf-water cascading in the northwestern Mediterranean basin
description 10 pages, 7 figures
format artículo
topic_facet Shelf to basin sediment transport
Downward particle fluxes
Storms
Dense shelf water cascading
Northwestern Mediterranean
Gulf of Lions
author Palanques, Albert
Puig, Pere
Latasa, Mikel
Scharek, Renate
author_facet Palanques, Albert
Puig, Pere
Latasa, Mikel
Scharek, Renate
author_sort Palanques, Albert
title Deep sediment transport induced by storms and dense shelf-water cascading in the northwestern Mediterranean basin
title_short Deep sediment transport induced by storms and dense shelf-water cascading in the northwestern Mediterranean basin
title_full Deep sediment transport induced by storms and dense shelf-water cascading in the northwestern Mediterranean basin
title_fullStr Deep sediment transport induced by storms and dense shelf-water cascading in the northwestern Mediterranean basin
title_full_unstemmed Deep sediment transport induced by storms and dense shelf-water cascading in the northwestern Mediterranean basin
title_sort deep sediment transport induced by storms and dense shelf-water cascading in the northwestern mediterranean basin
publisher Elsevier
publishDate 2009-03
url http://hdl.handle.net/10261/15624
work_keys_str_mv AT palanquesalbert deepsedimenttransportinducedbystormsanddenseshelfwatercascadinginthenorthwesternmediterraneanbasin
AT puigpere deepsedimenttransportinducedbystormsanddenseshelfwatercascadinginthenorthwesternmediterraneanbasin
AT latasamikel deepsedimenttransportinducedbystormsanddenseshelfwatercascadinginthenorthwesternmediterraneanbasin
AT scharekrenate deepsedimenttransportinducedbystormsanddenseshelfwatercascadinginthenorthwesternmediterraneanbasin
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