Identificador persistente para citar o vincular este elemento:
http://hdl.handle.net/10553/124431
Campo DC | Valor | idioma |
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dc.contributor.author | Estrada Allis,Sheila Natali | en_US |
dc.contributor.author | Rodríguez Santana, Ángel | en_US |
dc.contributor.author | Naveira-Garabato, Alberto C. | en_US |
dc.contributor.author | García Weil, Luis Francisco | en_US |
dc.contributor.author | Arcos-Pulido, Mireya | en_US |
dc.contributor.author | Emelianov, Mikhail | en_US |
dc.date.accessioned | 2023-09-13T13:05:31Z | - |
dc.date.available | 2023-09-13T13:05:31Z | - |
dc.date.issued | 2023 | en_US |
dc.identifier.issn | 2296-7745 | en_US |
dc.identifier.other | Scopus | - |
dc.identifier.uri | http://hdl.handle.net/10553/124431 | - |
dc.description.abstract | The filaments of the African Eastern Boundary Upwelling System (EBUS) are responsible for feeding nutrients to the oligotrophic waters of the northeastern Atlantic. However, turbulent mixing associated with nutrient uplift in filaments is poorly documented and has been mainly evaluated numerically. Using microstructure profiler measurements, we detected enhanced turbulent kinetic energy dissipation rates (ε) within the Cape Ghir upwelling filament. In contrast to previous studies, this enhancement was not related to symmetrical instabilities induced by down-front winds but to an increase in vertical current shear at the base of the mixed layer ((Formula presented.)). In order to quantify the impact of vertical shear and the influence of the active mixing layer depth ((Formula presented.)) in the filament, a simple one-dimensional (1D) turbulent entrainment approach was used. We found that the effect of turbulent enhancement, together with the isopycnal morphology of the filament front, drove the formation of local positive entrainment zones ((Formula presented.)), as (Formula presented.) was deeper than (Formula presented.). This provided suitable conditions for the entrainment of cold, nutrient-rich waters from below the filament pycnocline and the upward transport of biophysical properties to the upper boundary layer of the front. We also found that diapycnal nutrient fluxes in stations influenced by the filament (1.35 mmol m-2 d-1) were two orders of magnitude higher than those of stations not affected by the filament front (0.02 mmol m-2 d-1). Despite their importance, the effects of vertical shear and (Formula presented.) have often been neglected in entrainment parameterizations. Thus, a modified entrainment parameterization was adapted to include vertical shear and observed ε, which are overestimated by existing parameterizations. To account for the possible role of internal waves in the generation of vertical shear, we considered internal wave scaling to parameterize the observed dissipation. Using this adapted parameterization, the average entrainment velocities were six times (6 m d-1) higher than those obtained with the classic parameterization (1 m d-1). | en_US |
dc.language | eng | en_US |
dc.relation | Campaña Oceanográfica Promeca-2010 | en_US |
dc.relation | Procesos de Mezcla en la Cuenca Canaria: Corriente de Canariasy Sistema de Afloramiento Del Noroeste Africano. | en_US |
dc.relation.ispartof | Frontiers in Marine Science | en_US |
dc.source | Frontiers in Marine Science [ISSN 2296-7745], v. 10, (Enero 2023) | en_US |
dc.subject | 251007 Oceanografía física | en_US |
dc.subject.other | Active Mixing | en_US |
dc.subject.other | Diapycnal Mixing | en_US |
dc.subject.other | Entrainment | en_US |
dc.subject.other | Entrainment Parameterization | en_US |
dc.subject.other | Turbulent | en_US |
dc.subject.other | Upwelling Filament | en_US |
dc.title | Enhancement of turbulence and nutrient fluxes within an Eastern Boundary Upwelling Filament: a diapycnal entrainment approach | en_US |
dc.type | info:eu-repo/semantics/Article | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.3389/fmars.2023.1113879 | en_US |
dc.identifier.scopus | 85166437240 | - |
dc.identifier.isi | WOS:001040522000001 | - |
dc.contributor.orcid | NO DATA | - |
dc.contributor.orcid | NO DATA | - |
dc.contributor.orcid | NO DATA | - |
dc.contributor.orcid | NO DATA | - |
dc.contributor.orcid | NO DATA | - |
dc.contributor.orcid | NO DATA | - |
dc.contributor.authorscopusid | 55953934900 | - |
dc.contributor.authorscopusid | 6506514177 | - |
dc.contributor.authorscopusid | 6602255562 | - |
dc.contributor.authorscopusid | 6507895204 | - |
dc.contributor.authorscopusid | 55953916700 | - |
dc.contributor.authorscopusid | 6602966273 | - |
dc.identifier.eissn | 2296-7745 | - |
dc.relation.volume | 10 | en_US |
dc.investigacion | Ciencias | en_US |
dc.type2 | Artículo | en_US |
dc.utils.revision | Sí | en_US |
dc.date.coverdate | Enero 2023 | en_US |
dc.identifier.ulpgc | Sí | en_US |
dc.contributor.buulpgc | BU-BAS | en_US |
dc.description.sjr | 0,907 | |
dc.description.jcr | 3,7 | |
dc.description.sjrq | Q1 | |
dc.description.jcrq | Q1 | |
dc.description.scie | SCIE | |
dc.description.miaricds | 10,3 | |
item.fulltext | Con texto completo | - |
item.grantfulltext | open | - |
crisitem.project.principalinvestigator | Rodríguez Santana, Ángel | - |
crisitem.project.principalinvestigator | Rodríguez Santana, Ángel | - |
crisitem.author.dept | GIR ECOAQUA: Oceanografía Física y Geofísica Aplicada | - |
crisitem.author.dept | IU de Investigación en Acuicultura Sostenible y Ec | - |
crisitem.author.dept | GIR ECOAQUA: Oceanografía Física y Geofísica Aplicada | - |
crisitem.author.dept | IU de Investigación en Acuicultura Sostenible y Ec | - |
crisitem.author.dept | Departamento de Física | - |
crisitem.author.dept | GIR IUNAT: Física marina y teledetección aplicada | - |
crisitem.author.dept | IU de Estudios Ambientales y Recursos Naturales | - |
crisitem.author.dept | Departamento de Física | - |
crisitem.author.orcid | 0000-0002-0005-4629 | - |
crisitem.author.orcid | 0000-0003-1960-6777 | - |
crisitem.author.orcid | 0000-0002-1325-1365 | - |
crisitem.author.parentorg | IU de Investigación en Acuicultura Sostenible y Ec | - |
crisitem.author.parentorg | IU de Investigación en Acuicultura Sostenible y Ec | - |
crisitem.author.parentorg | IU de Estudios Ambientales y Recursos Naturales | - |
crisitem.author.fullName | Estrada Allis,Sheila Natali | - |
crisitem.author.fullName | Rodríguez Santana, Ángel | - |
crisitem.author.fullName | García Weil, Luis Francisco | - |
Colección: | Artículos |
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