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dc.contributor.author
Valla, Daniel

dc.contributor.author
Piola, Alberto Ricardo

dc.contributor.author
Meinen, Christopher S.

dc.contributor.author
Campos, Edmo

dc.date.available
2021-03-10T03:31:28Z
dc.date.issued
2019-06-28
dc.identifier.citation
Valla, Daniel; Piola, Alberto Ricardo; Meinen, Christopher S.; Campos, Edmo; Abyssal Transport Variations in the Southwest South Atlantic: First Insights From a Long-Term Observation Array at 34.5°S; American Geophysical Union; Geophysical Research Letters; 46; 12; 28-6-2019; 6699-6705
dc.identifier.issn
0094-8276
dc.identifier.uri
http://hdl.handle.net/11336/127888
dc.description.abstract
The zonal structure and time variability of the abyssal flow (below 3,000 dbar) in the South Atlantic western boundary is investigated using a combination of moored observations and simultaneous hydrographic/velocity sections at 34.5°S during 2009–2018. Moored direct velocity measurements near the bottom show strong variability with a peak-to-peak range exceeding 80 cm/s and dominant signals at times scales of 1–2 months. Daily time series of the meridional absolute geostrophic volume transport computed from the moorings reveals a highly energetic record with a temporal standard deviation of 8.3 Sv and peak-to-peak variations of 49 Sv, suggesting a significant contribution of the abyssal layer flows to the Deep Western Boundary Current time variability. The absolute transport is mostly driven by barotropic changes that are dominated by variations in the bottom pressure ~650 km away from the continental slope.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Geophysical Union

dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ABYSSAL
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ANTARCTIC BOTTOM WATER
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ATLANTIC MERIDIONAL OVERTURNING CIRCULATION
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DEEP WESTERN BOUNDARY CURRENT
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LOWER CIRCUMPOLAR DEEP WATER
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SAMOC
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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
Abyssal Transport Variations in the Southwest South Atlantic: First Insights From a Long-Term Observation Array at 34.5°S
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-03-05T18:36:05Z
dc.journal.volume
46
dc.journal.number
12
dc.journal.pagination
6699-6705
dc.journal.pais
Estados Unidos

dc.journal.ciudad
Washington DC
dc.description.fil
Fil: Valla, Daniel. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Instituto Franco-argentino sobre Estudios del Clima y sus Impactos; 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. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Instituto Franco-argentino sobre Estudios del Clima y sus Impactos; Argentina. 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
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. American University Of Sharjah.; Emiratos Árabes Unidos
dc.journal.title
Geophysical Research Letters

dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019GL082740
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1029/2019GL082740
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