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dc.contributor.author
Bilo, Tiago Carrilho
dc.contributor.author
Silveira, Ilson Carlos Almeida da
dc.contributor.author
Belo, Wellington Ceccopieri
dc.contributor.author
Castro, Belmiro Mendes de
dc.contributor.author
Piola, Alberto Ricardo
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dc.date.available
2018-02-06T17:43:40Z
dc.date.issued
2014-08
dc.identifier.citation
Bilo, Tiago Carrilho ; Silveira, Ilson Carlos Almeida da ; Belo, Wellington Ceccopieri; Castro, Belmiro Mendes de; Piola, Alberto Ricardo; Methods for estimating the velocities of the Brazil Current in the pre-salt reservoir area off southeast Brazil (23º S-26º S); Springer Heidelberg; Ocean Dynamics; 64; 10; 8-2014; 1431-1446
dc.identifier.issn
1616-7341
dc.identifier.uri
http://hdl.handle.net/11336/35808
dc.description.abstract
The Brazil Current (BC) is likely the least observed and investigated subtropical western boundary current in the world. This study proposes a simple and systematic methodology to estimate quasi-synoptic cross-sectional speeds of the BC within the Santos Basin (23∘ S–26∘ S) based on the dynamic method using several combinations of data: Conductivity, temperature, and depth (CTD), temperature profiles, CTD and vessel-mounted Acoustic Doppler Current Profiler (VMADCP), and temperature profiles and VMADCP. All of the geostrophic estimates agree well with lowered Acoustic Doppler Current Profiler (LADCP) velocity observations and yield volume transports of -5.56 ±1.31 and 2.50 ±1.01 Sv for the BC and the Intermediate Western Boundary Current (IWBC), respectively. The LADCP data revealed that the BC flows southwestward and is ∼100 km wide, 500 m deep, and has a volume transport of approximately -5.75 ±1.53 Sv and a maximum speed of 0.59 m s−1. Underneath the BC, the IWBC flows northeastward and has a vertical extent of approximately 1,300 m, a width of ∼60 km, a maximum velocity of ∼0.22 m s−1, and a volume transport of 4.11 ± 2.01 Sv. Our analysis indicates that in the absence of the observed velocities, the isopycnal (σ 0) of 26.82 kg m−3 (∼500 dbar) is an adequate level of no motion for use in geostrophic calculations. Additionally, a simple linear relationship between the temperature and the specific volume anomaly can be used for a reliable first estimate of the BC-IWBC system in temperature-only transects.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Heidelberg
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Brazil Current
dc.subject
Intermediate Western Boundary Current
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Santos Basin Circulation
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Geostrophic Estimates
dc.subject.classification
Meteorología y Ciencias Atmosféricas
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Methods for estimating the velocities of the Brazil Current in the pre-salt reservoir area off southeast Brazil (23º S-26º 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
2018-02-05T20:15:53Z
dc.identifier.eissn
1616-7228
dc.journal.volume
64
dc.journal.number
10
dc.journal.pagination
1431-1446
dc.journal.pais
Alemania
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dc.description.fil
Fil: Bilo, Tiago Carrilho. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Silveira, Ilson Carlos Almeida da. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Belo, Wellington Ceccopieri. Centro de Pesquisas e Desenvolvimento "Leopoldo A. Miguez de Mello"; Brasil
dc.description.fil
Fil: Castro, Belmiro Mendes de. Universidade de Sao Paulo; Brasil
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Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Ocean Dynamics
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10236-014-0761-2
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10236-014-0761-2
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