(Sub-)inertial wave boundary turbulence in the Gulf of Valencia

7 pages, 6 figures

Detalles Bibliográficos
Autores: van Haren, H., Ribó, Marta, Puig, Pere
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/77442
Acceso en línea:http://hdl.handle.net/10261/77442
Access Level:acceso abierto
Palabra clave:50-m high K-H billows
Inertial wave turbulence
Gulf of Valencia
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spelling (Sub-)inertial wave boundary turbulence in the Gulf of Valenciavan Haren, H.Ribó, MartaPuig, Pere50-m high K-H billowsInertial wave turbulenceGulf of Valencia7 pages, 6 figuresThe bottom boundary layer above sloping topography can be highly turbulent, even in deep seas. This is demonstrated here using high-resolution 1-Hz sampling temperature sensors that were moored for 5 months every 0.5 m between 6.5 and 61 m above a 572 m deep seafloor promontory on the continental slope off Valencia, Spain. Using these data, turbulence parameters have been estimated. With time and in the vertical, values vary over four orders of magnitude. They have a dominant local inertial period which is modulated by an about 11 day periodicity associated with variations in a baroclinic unstable boundary current. When this current is strong and Eastward, the upslope phase of inertial wave generates convective turbulence which reaches closest to the bottom and therefore can effect sediment dispersal. In late winter, equally strong shear-induced turbulence in 50 m high Kelvin-Helmholtz (K-H) overturns is forced by 0.2 m s−1 off/downslope motions, which are preceded by periods of warming of a few 0.01°C before the cooler near-bottom water is suddenly flushed over the promontory into the basin. Such anomalously large K-H overturns occurred 6 times in the investigated winter periodThis research was supported by the project COSTEM (CTM2009-07806). We thank the captain and the crew of the R/V Garcia del Cid for their kind assistance. We thank Martin Laan for all his enthusiastic development of NIOZ-thermistors. We are grateful to the UTM technicians for providing assistance during the data acquisition. M. R. is supported by a FPI grant (Ref. BES-2010-029949) from the Spanish Ministry of Economy and CompetitivenessPeer reviewedWiley-BlackwellAmerican Geophysical Union2013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/77442reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1002/jgrc.20168info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/774422026-05-22T06:33:51Z
dc.title.none.fl_str_mv (Sub-)inertial wave boundary turbulence in the Gulf of Valencia
title (Sub-)inertial wave boundary turbulence in the Gulf of Valencia
spellingShingle (Sub-)inertial wave boundary turbulence in the Gulf of Valencia
van Haren, H.
50-m high K-H billows
Inertial wave turbulence
Gulf of Valencia
title_short (Sub-)inertial wave boundary turbulence in the Gulf of Valencia
title_full (Sub-)inertial wave boundary turbulence in the Gulf of Valencia
title_fullStr (Sub-)inertial wave boundary turbulence in the Gulf of Valencia
title_full_unstemmed (Sub-)inertial wave boundary turbulence in the Gulf of Valencia
title_sort (Sub-)inertial wave boundary turbulence in the Gulf of Valencia
dc.creator.none.fl_str_mv van Haren, H.
Ribó, Marta
Puig, Pere
author van Haren, H.
author_facet van Haren, H.
Ribó, Marta
Puig, Pere
author_role author
author2 Ribó, Marta
Puig, Pere
author2_role author
author
dc.subject.none.fl_str_mv 50-m high K-H billows
Inertial wave turbulence
Gulf of Valencia
topic 50-m high K-H billows
Inertial wave turbulence
Gulf of Valencia
description 7 pages, 6 figures
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/77442
url http://hdl.handle.net/10261/77442
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1002/jgrc.20168
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-Blackwell
American Geophysical Union
publisher.none.fl_str_mv Wiley-Blackwell
American Geophysical Union
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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