Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/238
DC FieldValueLanguage
dc.contributor.authorRodríguez Santana, Ángel-
dc.contributor.authorPelegrí Llopart, José Luis-
dc.contributor.authorSangrà, Pablo-
dc.contributor.authorMarrero Díaz, Ángeles-
dc.contributor.otherRodriguez-Santana, Angel-
dc.contributor.otherPelegri, Josep-
dc.contributor.otherMarrero-Diaz, Angeles-
dc.contributor.otherSangra, Pablo-
dc.date.accessioned2009-10-08T02:31:00Z-
dc.date.accessioned2018-03-01T13:39:25Z-
dc.date.availablenull-
dc.date.available2018-03-01T13:39:25Z-
dc.date.issued2001-
dc.identifier.issn0214-8358-
dc.identifier.other856-
dc.identifier.urihttp://hdl.handle.net/10553/238-
dc.description.abstractThis work examines the possible importance of shear-induced diapycnal mixing in controlling the evolutionand stability of meanders in oceanic frontal jets. We first review the conditions necessary for vortex stability and investi-gate how these may be modified in the presence of diapycnal mixing. The procedure used is rather crude but provides a mea-sure of the relative importance of diapycnal mixing. It consists in constructing a simplified equation for the radial velocitythat retains the density tendency and examining under what circumstances this velocity may grow in time. Next, we use asimple two-dimensional isopycnic model to examine the intensity of diapycnal mixing in meanders. In the model the along-front velocity is in geostrophic balance and the ageostrophic contributions are an oscillating deformation field and diapyc-nal mass exchange. The horizontal deformation field increases the slope of the isopycnals in temporal scales typical of GulfStream meanders, causing a reduction of the gradient Richardson number, Ri. The diapycnal flux is calculated as the diver-gence of the density Reynolds flux, which is parameterized in terms of Ri.The results of the model show that diapycnal mix-ing increases during the frontogenetical stages, reaching density tendency values of the order of 10-4kg m-3s-1and conver-gence/divergence values of the order of 10-3s-1. It turns out that diapycnal mixing in meanders may be intense enough to control the separation and slope of the isopycnals and to condition the possibility of barotropic instability.-
dc.languageeng-
dc.relation.ispartofScientia Marina-
dc.sourceScientia Marina [ISSN 0214-8358], v. 65 (supl. 1), p. 259-267-
dc.subject2204 Física de fluidos-
dc.subject251007 Oceanografía física-
dc.subject.otherDiapycnal mixing-
dc.subject.otherBarotropic instability-
dc.subject.otherMeanders-
dc.subject.otherOceanic jets-
dc.subject.otherAtmospheric jets-
dc.titleOn the relevance of diapycnal mixing for the stability of frontal meanders-
dc.typeinfo:eu-repo/semantics/Article-
dc.typeArticle-
dc.relation.conferenceWorkshop and Conference on Oceanography
dc.identifier.doi10.3989/scimar.2001.65s1259-
dc.identifier.scopus0034853012-
dc.identifier.isi000170284000026-
dcterms.isPartOfScientia Marina-
dcterms.sourceScientia Marina[ISSN 0214-8358],v. 65, p. 259-267-
dc.contributor.authorscopusid6506514177-
dc.contributor.authorscopusid7003869003-
dc.contributor.authorscopusid6602684473-
dc.contributor.authorscopusid6507074043-
dc.identifier.absysnet226397-
dc.identifier.crisid1764;-;-;2663-
dc.description.lastpage267-
dc.description.firstpage259-
dc.relation.volume65-
dc.investigacionCiencias-
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess-
dc.type2Artículo-
dc.identifier.wosWOS:000170284000026-
dc.contributor.daisngid1821092-
dc.contributor.daisngid358123-
dc.contributor.daisngid763696-
dc.contributor.daisngid1846069-
dc.identifier.investigatorRIDH-8596-2015-
dc.identifier.investigatorRIDL-5815-2014-
dc.identifier.investigatorRIDH-2175-2015-
dc.identifier.investigatorRIDNo ID-
dc.utils.revision-
dc.contributor.wosstandardWOS:Rodriguez-Santana, A
dc.contributor.wosstandardWOS:Pelegri, JL
dc.contributor.wosstandardWOS:Sangra, P
dc.contributor.wosstandardWOS:Marrero-Diaz, A
dc.date.coverdateSeptiembre 2001
dc.identifier.ulpgces
dc.description.jcr0,547
dc.description.jcrqQ4
item.fulltextCon texto completo-
item.grantfulltextopen-
crisitem.author.deptOceanografía Física y Geofísica Aplicada-
crisitem.author.deptDepartamento de Física-
crisitem.author.deptOceanografía Física y Geofísica Aplicada-
crisitem.author.deptDepartamento de Física-
crisitem.author.orcid0000-0003-1960-6777-
crisitem.author.orcid0000-0001-7697-0036-
crisitem.author.parentorgDepartamento de Física-
crisitem.author.parentorgDepartamento de Física-
crisitem.author.fullNameRodríguez Santana, Ángel-
crisitem.author.fullNamePelegrí Llopart, José Luis-
crisitem.author.fullNameSangrá Inciarte, Pablo-
crisitem.author.fullNameMarrero Díaz, María De Los Ángeles-
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