Mostrar el registro sencillo del ítem

dc.contributor.author
Meinen, Christopher S.  
dc.contributor.author
Speich, Sabrina  
dc.contributor.author
Perez, Renellys C.  
dc.contributor.author
Dong, Shenfu  
dc.contributor.author
Piola, Alberto Ricardo  
dc.contributor.author
Garzoli, Silvia L.  
dc.contributor.author
Baringer, Molly O.  
dc.contributor.author
Gladyshev, Sergey  
dc.contributor.author
Campos, Edmo  
dc.date.available
2019-11-20T22:50:00Z  
dc.date.issued
2013-12  
dc.identifier.citation
Meinen, Christopher S.; Speich, Sabrina; Perez, Renellys C.; Dong, Shenfu; Piola, Alberto Ricardo; et al.; Temporal variability of the meridional overturning circulation at 34.5°S: Results from two pilot boundary arrays in the South Atlantic; American Geophysical Union; Journal of Geophysical Research; 118; 12; 12-2013; 6461-6478  
dc.identifier.issn
0148-0227  
dc.identifier.uri
http://hdl.handle.net/11336/89338  
dc.description.abstract
Data from two boundary arrays deployed along 34.5°S are combined to produce the first continuous in situ time series observations of the basin-wide meridional overturning circulation (MOC) in the South Atlantic. Daily estimates of the MOC between March 2009 and December 2010 range between 3 Sv and 39 Sv (1 Sv = 106 m3 s-1) after a 10 day low-pass filter is applied. Much of the variability in this ∼20 month record occurs at periods shorter than 100 days. Approximately two-thirds of the MOC variability is due to changes in the geostrophic (baroclinic plus barotropic) volume transport, with the remainder associated with the direct wind-forced Ekman transport. When low-pass filtered to match previously published analyses in the North Atlantic, the observed temporal standard deviation at 34.5°S matches or somewhat exceeds that observed by time series observations at 16°N, 26.5°N, and 41°N. For periods shorter than 20 days the basin-wide MOC variations are most strongly influenced by Ekman flows, while at periods between 20 and 90 days the geostrophic flows tend to exert slightly more control over the total transport variability of the MOC. The geostrophic shear variations are roughly equally controlled by density variations on the western and eastern boundaries at all time scales captured in the record. The observed time-mean MOC vertical structure and temporal variability agree well with the limited independent observations available for confirmation. Key Points The MOC at 34.5S is highly variable, with a range of 30+ Sv during ~20 months MOC variations at 34.5S occur at periods ranging from a few days to a few months MOC estimates from the PIES moorings agree well with existing validation data  
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
BOTTOM PRESSURE  
dc.subject
INVERTED ECHO SOUNDER  
dc.subject
MERIDIONAL OVERTURNING CIRCULATION  
dc.subject
SOUTH ATLANTIC  
dc.subject
TRANSPORT  
dc.subject.classification
Oceanografía, Hidrología, Recursos Hídricos  
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Temporal variability of the meridional overturning circulation at 34.5°S: Results from two pilot boundary arrays in the South Atlantic  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-10-23T14:49:38Z  
dc.identifier.eissn
2169-9291  
dc.journal.volume
118  
dc.journal.number
12  
dc.journal.pagination
6461-6478  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Washington  
dc.description.fil
Fil: Meinen, Christopher S.. Atlantic Oceanographic and Meteorological Laboratory; Estados Unidos  
dc.description.fil
Fil: Speich, Sabrina. University of Brest; Francia  
dc.description.fil
Fil: Perez, Renellys C.. Atlantic Oceanographic and Meteorological Laboratory; Estados Unidos. University of Miami; Estados Unidos  
dc.description.fil
Fil: Dong, Shenfu. Atlantic Oceanographic and Meteorological Laboratory; Estados Unidos. University of Miami; Estados Unidos  
dc.description.fil
Fil: Piola, Alberto Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Franco-Argentino Sobre Estudios del Clima y sus Impactos; Argentina. Universidad de Buenos Aires; Argentina  
dc.description.fil
Fil: Garzoli, Silvia L.. Atlantic Oceanographic and Meteorological Laboratory; Estados Unidos. University of Miami; Estados Unidos  
dc.description.fil
Fil: Baringer, Molly O.. Atlantic Oceanographic and Meteorological Laboratory; Estados Unidos  
dc.description.fil
Fil: Gladyshev, Sergey. Shirshov Institute of Oceanology; Rusia  
dc.description.fil
Fil: Campos, Edmo. Universidade de Sao Paulo; Brasil  
dc.journal.title
Journal of Geophysical Research  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2013JC009228  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1002/2013JC009228