Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyre

[EN] We study the dependence of salinity on temperature in two by two degrees latitude-longitude boxes, for surface and upper-thermocline waters of the eastern North Atlantic subtropical gyre. The initial data set, from historical databases as well as from recent hydrographic cruises in the region,...

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Detalles Bibliográficos
Autores: Marrero-Díaz, Ángeles, Rodríguez-Santana, Ángel, Machín, Francisco, Pelegrí, Josep Lluís
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/2362
Acceso en línea:http://hdl.handle.net/10261/2362
Access Level:acceso abierto
Palabra clave:S-T relationship
Eastern North Atlantic Subtropical Gyre
Climatology
XBT probe
Geostrophic transport
Relaciones analíticas S-T
Margen oriental del Giro Subtropical del Atlántico Norte
Climatología
Sonda XBT
Transporte geostrófico
NASG
XBT
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spelling Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyreRelaciones analíticas entre la salinidad y la temperatura para aguas de la termoclina superior en el margen oriental del giro subtropical del Atlántico NorteMarrero-Díaz, ÁngelesRodríguez-Santana, ÁngelMachín, FranciscoPelegrí, Josep LluísS-T relationshipEastern North Atlantic Subtropical GyreClimatologyXBT probeGeostrophic transportRelaciones analíticas S-TMargen oriental del Giro Subtropical del Atlántico NorteClimatologíaSonda XBTTransporte geostróficoNASGXBT[EN] We study the dependence of salinity on temperature in two by two degrees latitude-longitude boxes, for surface and upper-thermocline waters of the eastern North Atlantic subtropical gyre. The initial data set, from historical databases as well as from recent hydrographic cruises in the region, is carefully scrutinized to reject dubious measurements. We search for polynomial relations of variable degree between salinity and temperature, the optimal fit is selected as the polynomial with the lowest degree that satisfies several statistical criteria. An independent hydrographic cruise is used to confirm that the method performs substantially better than estimates from climatological data, and leads to relatively low deviations in geopotential anomaly and other derived quantities. An error propagation analysis using the Monte Carlo method shows equally good results[ES] En este estudio caracterizamos la dependencia de la salinidad con la temperatura en cajas de dos por dos grados de latitud y longitud para aguas superficiales y de la termoclina superior en el margen oriental del giro subtropical del Atlántico Norte. El conjunto inicial de datos, procedente de bases de datos históricos, así como los procedentes de recientes campañas hidrográficas en la región, son cuidadosamente analizados para eliminar las medidas de calidad dudosa. Se analizan varias relaciones polinómicas de grado variable para la salinidad en función de la temperatura, eligiendo como ajuste óptimo aquel polinomio de menor grado que satisface diversos criterios estadísticos. Se utiliza una campaña hidrográfica independiente para confirmar que el método da resultados substancialmente mejores que estimaciones a partir de datos climatológicos, y que produce desviaciones relativamente bajas en la anomalía geopotencial y en otras magnitudes derivadas. Un análisis de la propagación del error usando el Método de Montecarlo muestra resultados igualmente buenosWe are grateful to the Institut für Meereskunde and IFREMER for making their data sets available. The Spanish cruises that gathered some of the data analyzed here were carried out through projects from the Spanish government (program CYTMAR) and the European Union (program MAST). This work has been carried out with the support of the Spanish Government through project FRENTES (AMB95-0731) and the European Union through projects CANIGO (MAS3-CT96-0060) and OASIS (EVK3-CT-2002-00073). Part of this work was written while JLP was at the University of Wisconsin-Madison with funding from the Secretaría de Estado de Educación y Universidades of the Spanish governmentPeer reviewedConsejo Superior de Investigaciones Científicas (España)200720072006info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/2362reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3989/scimar.2006.70n2167info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/23622026-05-22T06:33:51Z
dc.title.none.fl_str_mv Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyre
Relaciones analíticas entre la salinidad y la temperatura para aguas de la termoclina superior en el margen oriental del giro subtropical del Atlántico Norte
title Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyre
spellingShingle Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyre
Marrero-Díaz, Ángeles
S-T relationship
Eastern North Atlantic Subtropical Gyre
Climatology
XBT probe
Geostrophic transport
Relaciones analíticas S-T
Margen oriental del Giro Subtropical del Atlántico Norte
Climatología
Sonda XBT
Transporte geostrófico
NASG
XBT
title_short Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyre
title_full Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyre
title_fullStr Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyre
title_full_unstemmed Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyre
title_sort Analytic salinity-temperature relations for the upper-thermocline waters of the eastern North Atlantic subtropical gyre
dc.creator.none.fl_str_mv Marrero-Díaz, Ángeles
Rodríguez-Santana, Ángel
Machín, Francisco
Pelegrí, Josep Lluís
author Marrero-Díaz, Ángeles
author_facet Marrero-Díaz, Ángeles
Rodríguez-Santana, Ángel
Machín, Francisco
Pelegrí, Josep Lluís
author_role author
author2 Rodríguez-Santana, Ángel
Machín, Francisco
Pelegrí, Josep Lluís
author2_role author
author
author
dc.subject.none.fl_str_mv S-T relationship
Eastern North Atlantic Subtropical Gyre
Climatology
XBT probe
Geostrophic transport
Relaciones analíticas S-T
Margen oriental del Giro Subtropical del Atlántico Norte
Climatología
Sonda XBT
Transporte geostrófico
NASG
XBT
topic S-T relationship
Eastern North Atlantic Subtropical Gyre
Climatology
XBT probe
Geostrophic transport
Relaciones analíticas S-T
Margen oriental del Giro Subtropical del Atlántico Norte
Climatología
Sonda XBT
Transporte geostrófico
NASG
XBT
description [EN] We study the dependence of salinity on temperature in two by two degrees latitude-longitude boxes, for surface and upper-thermocline waters of the eastern North Atlantic subtropical gyre. The initial data set, from historical databases as well as from recent hydrographic cruises in the region, is carefully scrutinized to reject dubious measurements. We search for polynomial relations of variable degree between salinity and temperature, the optimal fit is selected as the polynomial with the lowest degree that satisfies several statistical criteria. An independent hydrographic cruise is used to confirm that the method performs substantially better than estimates from climatological data, and leads to relatively low deviations in geopotential anomaly and other derived quantities. An error propagation analysis using the Monte Carlo method shows equally good results
publishDate 2006
dc.date.none.fl_str_mv 2006
2007
2007
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/10261/2362
url http://hdl.handle.net/10261/2362
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3989/scimar.2006.70n2167
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
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 15,808905

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