Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/48190
Campo DC Valoridioma
dc.contributor.authorSangrá Inciarte, Pabloen_US
dc.contributor.authorAuladell, M.en_US
dc.contributor.authorMarrero-Díaz, A.en_US
dc.contributor.authorPelegrí Llopart,José Luisen_US
dc.contributor.authorFraile Nuez,Eugenioen_US
dc.contributor.authorRodríguez-Santana, A.en_US
dc.contributor.authorMartín, J. M.en_US
dc.contributor.authorMason, E.en_US
dc.contributor.authorHernández-Guerra, A.en_US
dc.contributor.otherMason, Evan-
dc.contributor.otherHernandez-Guerra, Alonso-
dc.contributor.otherRodriguez-Santana, Angel-
dc.contributor.otherMartin Gonzalez, Juan Manuel-
dc.contributor.otherPelegri, Josep-
dc.contributor.otherFraile-Nuez, Eugenio-
dc.contributor.otherMarrero-Diaz, Angeles-
dc.contributor.otherSangra, Pablo-
dc.date.accessioned2018-11-23T19:39:06Z-
dc.date.available2018-11-23T19:39:06Z-
dc.date.issued2007en_US
dc.identifier.issn0967-0637en_US
dc.identifier.urihttp://hdl.handle.net/10553/48190-
dc.description.abstractWe use hydrographic and buoy data to compare the initial temperature fields and Lagrangian evolution of water parcels in two vortices generated by the southward flowing Canary Current passing around the island of Gran Canaria Island. One vortex is anticyclonic, shed in June 1998 as the result of an incident current of about 0.05 m s−1, and the second one is cyclonic, shed in June 2005 with the impinging current estimated as 0.03 m s−1. The two vortices exhibit contrasting characteristics yet display some important similarities. The isopycnals are depressed in the core of the anticyclonic vortex, at least down to a depth of 700 m, whilst they dome up in the core of the cyclonic vortex but only down to 450 m. In the top 300 m the depression/doming of the isotherms is similar for both vortices, with a maximum vertical displacement of the isotherm of about 80 m, which correspond to temperature anomalies of some 2.5 °C at a given depth. A simple method is developed to obtain the initial orbital velocity field from the temperature data, from which we estimate peak values of 0.7 and 0.5 m s−1 for the anticyclonic and cyclonic vortices, respectively. The buoys, three for the anticyclonic vortex and two for the cyclonic one, were drougued at 100 m depth, below the surface mixed layer, and their initial velocities are consistent with the above values. In both vortices, the buoys revolve either within a central core, where the rotation rate remains stable and large for several weeks, or in an outer ring, where the rotation rate is significantly smaller and displays large radial fluctuations. Within the inner core the anticyclonic vortex has significant inward radial velocity, while the cyclonic vortex has near-zero radial mean motions. The cyclonic vortex rotates more slowly than the anticyclonic, their initial periods being 4.5 and 2.5 days, respectively. A simple axisymmetric model with radial diffusion (coefficient Kh≅25 m2 s−1) and advection reproduces the observations reasonably well, the diffusive effect being more important than that resulting from the observed radial advection. The model also supports the hypothesis that the rotation rate of cyclonic vortices is less than that of anticyclonic vortices, as otherwise they would become inertially unstable. Both the buoys data and sea surface temperature images confirm that the vortices evolve from youth to maturity, as the cores shrink and the outer rings expands, and then to a decay stage, as the core rotation rates decrease, though frequent interactions with other mesoscale structures result in more accelerated aging. Despite these interaction they last many months as coherent structures south of the Canary Islands.en_US
dc.languageengen_US
dc.publisher0967-0637-
dc.relationRemolinos Oceanicos y de Posición Atmosferica (Roda): Dinámica y Monitorización de Remolinos Oceanicos en la Corriente de Canariasen_US
dc.relation.ispartofDeep-Sea Research Part I: Oceanographic Research Papersen_US
dc.sourceDeep-Sea Research Part I: Oceanographic Research Papers [ISSN 0967-0637], v. 54, p. 687-709en_US
dc.subject2510 Oceanografíaen_US
dc.subject.otherOceanic eddiesen_US
dc.subject.otherDriftersen_US
dc.subject.otherOceanic Islandsen_US
dc.subject.otherLagrangian current measurementen_US
dc.subject.otherInertial stabilityen_US
dc.subject.otherRotation rateen_US
dc.subject.otherCanary Islandsen_US
dc.subject.otherGran Canaria Islanden_US
dc.titleOn the nature of oceanic eddies shed by the Island of Gran Canariaen_US
dc.typeinfo:eu-repo/semantics/Articlees
dc.typeArticlees
dc.identifier.doi10.1016/j.dsr.2007.02.004
dc.identifier.scopus34247492782-
dc.identifier.isi000247017500001-
dcterms.isPartOfDeep-Sea Research Part I-Oceanographic Research Papers-
dcterms.sourceDeep-Sea Research Part I-Oceanographic Research Papers[ISSN 0967-0637],v. 54 (5), p. 687-709-
dc.contributor.authorscopusid6602684473-
dc.contributor.authorscopusid16240698500-
dc.contributor.authorscopusid6507074043-
dc.contributor.authorscopusid7003869003-
dc.contributor.authorscopusid12139561900-
dc.contributor.authorscopusid6506514177-
dc.contributor.authorscopusid6603384846-
dc.contributor.authorscopusid35264466500-
dc.contributor.authorscopusid6701736545-
dc.description.lastpage709-
dc.description.firstpage687-
dc.relation.volume54-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.contributor.daisngid763696-
dc.contributor.daisngid9172048-
dc.contributor.daisngid1846069-
dc.contributor.daisngid358123-
dc.contributor.daisngid1139939-
dc.contributor.daisngid1821092-
dc.contributor.daisngid863271-
dc.contributor.daisngid1769703
dc.contributor.daisngid1414204-
dc.contributor.daisngid660191-
dc.identifier.investigatorRIDA-5101-2019-
dc.identifier.investigatorRIDA-4747-2008-
dc.identifier.investigatorRIDH-8596-2015-
dc.identifier.investigatorRIDH-6127-2015-
dc.identifier.investigatorRIDL-5815-2014-
dc.identifier.investigatorRIDD-1521-2010-
dc.identifier.investigatorRIDH-2175-2015-
dc.identifier.investigatorRIDNo ID-
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Sangra, P
dc.contributor.wosstandardWOS:Auladell, M
dc.contributor.wosstandardWOS:Marrero-Diaz, A
dc.contributor.wosstandardWOS:Pelegri, JL
dc.contributor.wosstandardWOS:Fraile-Nuez, E
dc.contributor.wosstandardWOS:Rodriguez-Santana, A
dc.contributor.wosstandardWOS:Martin, JM
dc.contributor.wosstandardWOS:Mason, E
dc.contributor.wosstandardWOS:Hernandez-Guerra, A
dc.date.coverdateMayo 2007
dc.identifier.ulpgces
dc.description.jcr1,795
dc.description.jcrqQ2
dc.description.scieSCIE
item.grantfulltextnone-
item.fulltextSin texto completo-
crisitem.author.deptGIR ECOAQUA: Oceanografía Física y Geofísica Aplicada-
crisitem.author.deptIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.deptDepartamento de Física-
crisitem.author.deptGIR ECOAQUA: Oceanografía Física y Geofísica Aplicada-
crisitem.author.deptIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.deptDepartamento de Física-
crisitem.author.deptGIR IOCAG: Oceanografía Física-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.deptDepartamento de Física-
crisitem.author.orcid0000-0001-7697-0036-
crisitem.author.orcid0000-0003-1960-6777-
crisitem.author.orcid0000-0003-0096-7142-
crisitem.author.orcid0000-0002-4883-8123-
crisitem.author.parentorgIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.parentorgIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.fullNameSangrá Inciarte, Pablo-
crisitem.author.fullNameMarrero Díaz, María De Los Ángeles-
crisitem.author.fullNamePelegrí Llopart, José Luis-
crisitem.author.fullNameFraile Nuez,Eugenio-
crisitem.author.fullNameRodríguez Santana, Ángel-
crisitem.author.fullNameMartín González, Juan Manuel-
crisitem.author.fullNameHernández Guerra, Alonso-
crisitem.project.principalinvestigatorSangrá Inciarte, Pablo-
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