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Temperature–salinity distribution in the northeastern Atlantic from ship and Argo vertical casts

dc.contributor.authorBashmachnikov, Igor
dc.contributor.authorNeves, Filipe
dc.contributor.authorNascimento, Â.
dc.contributor.authorMedeiros, João
dc.contributor.authorAmbar, Isabel
dc.contributor.authorDias, Joaquim
dc.contributor.authorCarton, X.
dc.date.accessioned2020-01-19T14:50:37Z
dc.date.available2020-01-19T14:50:37Z
dc.date.issued2015
dc.description.abstractThe present study defines new interpolation functions for hydrological data. These functions are applied to generate climatological maps of temperature–salinity distribution with a 25 m depth interval and a 30 km space interval (MEDTRANS data set). The data undergo rigorous initial data quality control, having passed several filtering procedures. The gridding is done on neutral density surfaces, which allows better representation of thermohaline fronts for the same gridding radius. The multi-pass Barnes optimum interpolation procedure with spatially variable size of the gridding window is used. The shape of the window accounts for the dominant along-isobath direction of water mass transport over steeply sloping topography. A local ratio of topographic to planetary β-effects is used to define the shape of the window as a function of the relative importance of the topographic influence. The N/f ratio is applied to account for the baroclinic compensation decay of the topographic influence on water mass transport with the distance from the bottom. The gridded fields are available at the website of the Centre of Oceanography of the University of Lisbon (http://co.fc.ul.pt/en/data). The MEDTRANS climatology gives more details of the distribution of water characteristics in the subtropical northeastern Atlantic than other alternative climatologies and is able to reproduce a number of dynamic features described in the literature: the acceleration in the meanders of the Azores current; the cyclonic gyre in the Gulf of Cadiz; and the splitting and separation of the Mediterranean Water (MW) outflow in two veins near the Gorringe and Galicia banks. Seasonal climatologies, computed for the warm (May–October) and cold (November–April) seasons, reveal stronger zonal extension of the upper ocean patterns during the warm season, as compared to the cold one.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.5194/os-11-215-2015pt_PT
dc.identifier.issn1812-0784
dc.identifier.urihttp://hdl.handle.net/10451/41052
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCopernicus Publicationspt_PT
dc.titleTemperature–salinity distribution in the northeastern Atlantic from ship and Argo vertical castspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage236pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage215pt_PT
oaire.citation.titleOcean Sciencept_PT
oaire.citation.volume11pt_PT
person.familyNameBashmachnikov
person.familyNameNeves
person.familyNameMedeiros
person.familyNameambar
person.familyNameDias
person.givenNameIgor
person.givenNameFilipe
person.givenNameJoão Paulo
person.givenNameisabel
person.givenNameJoaquim
person.identifier.orcid0000-0002-1257-4197
person.identifier.orcid0000-0002-6166-9387
person.identifier.orcid0000-0003-1581-6187
person.identifier.orcid0000-0003-2514-2753
person.identifier.orcid0000-0002-1079-0881
person.identifier.ridB-2879-2012
person.identifier.ridB-3712-2012
person.identifier.scopus-author-id8295005100
person.identifier.scopus-author-id6701854190
person.identifier.scopus-author-id17834126200
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication871a04a9-34f6-47f0-90de-669651a9b19c
relation.isAuthorOfPublication05ca1e5d-222c-480e-a494-18977e432d0d
relation.isAuthorOfPublicationae8e1bb4-6424-402d-9535-bd21a939538f
relation.isAuthorOfPublicationfbb5677d-9fca-4a61-9c44-0056bcec790f
relation.isAuthorOfPublicationf30fb70c-85f6-4ba2-a812-1313fe1992c0
relation.isAuthorOfPublication.latestForDiscovery05ca1e5d-222c-480e-a494-18977e432d0d

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