Article (Scientific journals)
Effects of extreme meteorological conditions on coastal dynamics near a submarine canyon
Skliris, Nikolaos; Lacroix, Geneviève; Djenidi, Salim
2004In Continental Shelf Research, 24 (9), p. 1033-1045
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Keywords :
submarine canyons; shelf edge dynamics; downwelling; modelling; Mediterranean Sea; Corsica
Abstract :
[en] A 3-D hydrodynamic model is applied to assess shelf/slope exchanges in the Calvi Canyon region (Corsica, NW Mediterranean) during the violent storm that affected the Western Europe in December 1999. Simulations are carried out using high-frequency sampling meteorological data to take into account the short-term variability of the atmospheric conditions. It is shown that the combined effects of canyon topography and of the wind forcing during the storm are responsible for a large increase of both cross-shore and vertical transports in the area. Strong downwelling motion is simulated all along the continental slope with vertical velocities up to 2cm s(-1) within the canyon. High turbulent diffusion levels are obtained leading to the complete mixing of the water column within the canyon. Results suggest that increased turbulent diffusion and downwelling circulation in the canyon during the storm should result in a large transport of coastal water towards the abyssal plain. (C) 2004 Elsevier Ltd. All rights reserved.
Research center :
MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège
Disciplines :
Earth sciences & physical geography
Author, co-author :
Skliris, Nikolaos ;  Université de Liège - ULiège > Océanographie physique
Lacroix, Geneviève
Djenidi, Salim ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie physique
Language :
English
Title :
Effects of extreme meteorological conditions on coastal dynamics near a submarine canyon
Publication date :
2004
Journal title :
Continental Shelf Research
ISSN :
0278-4343
Publisher :
Pergamon-Elsevier Science Ltd, Oxford, United Kingdom
Volume :
24
Issue :
9
Pages :
1033-1045
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 29 March 2013

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