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dc.contributor.author
Valla, Daniel
dc.contributor.author
Piola, Alberto Ricardo
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Meinen, Christopher S.
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Campos, Edmo
dc.date.available
2020-03-06T19:59:48Z
dc.date.issued
2018-07
dc.identifier.citation
Valla, Daniel; Piola, Alberto Ricardo; Meinen, Christopher S.; Campos, Edmo; Strong Mixing and Recirculation in the Northwestern Argentine Basin; American Geophysical Union; Journal of Geophysical Research: Oceans; 123; 7; 7-2018; 4624-4648
dc.identifier.issn
2169-9291
dc.identifier.uri
http://hdl.handle.net/11336/98979
dc.description.abstract
The Atlantic component of the Meridional Overturning Circulation (AMOC) is a key contributor to the global meridional transport of volume, salt, and heat, and thus plays a central role in global climate. As part of ongoing efforts to monitor the intensity and variability of the AMOC in the South Atlantic, hydrographic sections have been regularly occupied since 2009 near the western boundary along a zonal line at 34.5°S. Here this high-quality, high-resolution data set is analyzed to establish the average hydrographic conditions of the northwestern Argentine Basin and the water mass spatial and temporal variability. The water mass analysis also reveals the pathways of the flow in this region, which are further corroborated by full-depth direct velocity measurements. The repeated hydrographic sections capture an extremely rich vertical structure, characterized by seven distinct water mass layers of northern and southern origin, each with unique property signatures. Almost all of these layers exhibit a sharp zonally banded structure, which is indicative of recirculation cells offshore from the western boundary. The circulation at intermediate levels includes a previously undetected recirculation cell confined very close to the western boundary and superimposed on the classical intermediate water pathway beneath the South Atlantic subtropical gyre. The deep level flow is characterized by the Deep Western Boundary Current (DWBC) and a northward recirculation ~500 km east from the slope.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Geophysical Union
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
GENERAL CIRCULATION
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MERIDIONAL OVERTURNING CIRCULATION
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SOUTH ATLANTIC
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WATER MASSES
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WESTERN BOUNDARY CURRENT
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Oceanografía, Hidrología, Recursos Hídricos
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Strong Mixing and Recirculation in the Northwestern Argentine Basin
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-03-04T15:43:56Z
dc.journal.volume
123
dc.journal.number
7
dc.journal.pagination
4624-4648
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Valla, Daniel. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina
dc.description.fil
Fil: Piola, Alberto Ricardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
dc.description.fil
Fil: Meinen, Christopher S.. Atlantic Oceanographic and Meteorological Laboratory; Estados Unidos
dc.description.fil
Fil: Campos, Edmo. Universidade de Sao Paulo; Brasil
dc.journal.title
Journal of Geophysical Research: Oceans
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018JC013907
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1029/2018JC013907
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