The upper, deep, abyssal and overturning circulation in the Atlantic Ocean at 30°S in 2003 and 2011
24 pages, 7 figures, 10 tables, 2 appendices, supplementary material https://doi.org/10.1016/j.pocean.2019.102136 Mass transports for the thermocline, intermediate, deep and abyssal layers in the Atlantic Ocean, at 30°S and for 2003 and 2011, have been estimated using data from GO-SHIP hydrographic...
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Online Access: | http://hdl.handle.net/10261/195309 https://doi.org/10.1016/j.pocean.2019.102136 https://doi.org/10.13039/100000001 https://doi.org/10.13039/100000192 https://doi.org/10.13039/501100003329 |
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ftcsic:oai:digital.csic.es:10261/195309 2024-02-11T09:57:12+01:00 The upper, deep, abyssal and overturning circulation in the Atlantic Ocean at 30°S in 2003 and 2011 Hernández Guerra, Alonso Talley, L. Pelegrí, Josep Lluís Vélez-Belchí, Pedro Baringer, Molly O. Macdonald, Alison McDonagh, Elaine L. National Oceanic and Atmospheric Administration (US) National Science Foundation (US) Ministerio de Economía y Competitividad (España) 2019-09 http://hdl.handle.net/10261/195309 https://doi.org/10.1016/j.pocean.2019.102136 https://doi.org/10.13039/100000001 https://doi.org/10.13039/100000192 https://doi.org/10.13039/501100003329 unknown Elsevier #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-56987-P Preprint https://doi.org/10.1016/j.pocean.2019.102136 Sí issn: 0079-6611 Progress in Oceanography 176: 102136 (2019) http://hdl.handle.net/10261/195309 doi:10.1016/j.pocean.2019.102136 http://dx.doi.org/10.13039/100000001 http://dx.doi.org/10.13039/100000192 http://dx.doi.org/10.13039/501100003329 open artículo http://purl.org/coar/resource_type/c_6501 2019 ftcsic https://doi.org/10.1016/j.pocean.2019.10213610.13039/10000000110.13039/10000019210.13039/501100003329 2024-01-16T10:45:53Z 24 pages, 7 figures, 10 tables, 2 appendices, supplementary material https://doi.org/10.1016/j.pocean.2019.102136 Mass transports for the thermocline, intermediate, deep and abyssal layers in the Atlantic Ocean, at 30°S and for 2003 and 2011, have been estimated using data from GO-SHIP hydrographic transoceanic sections and applying three inverse models with different constraints. The uppermost layers comprise South Atlantic Central Water (SACW) and Antarctic Intermediate Water (AAIW), with a net northward transport in the range of 12.1–14.7 Sv in 2003 and 11.7–17.7 Sv in 2011, which can be considered as the northward returning limb of the Meridional Overturning Circulation (MOC). The western boundary Brazil Current transports twice as much SACW in 2003 (−20.2 ± 0.7 Sv) than in 2011 (−9.7 ± 0.7 Sv). A poleward current consisting of AAIW and Upper Circumpolar Deep Water (UCDW) flows beneath the Brazil Current. The eastern boundary Benguela Current, characterized by a high mesoscale eddy activity, transports 15.6 ± 0.9 Sv in 2003 and 11.2 ± 0.8 Sv in 2011, east of the Walvis Ridge. In the ocean interior, the northward flow is mainly located east of the Mid Atlantic Ridge (MAR) where Agulhas Rings (ARs), observed in both 2003 and 2011, transport warm and salty water from the Indian to the Atlantic Ocean. For the deep layers, the southward transport of North Atlantic Deep Water (NADW) occurs as the Deep Western Boundary Current and also in the eastern basin. The western and eastern basins transport similar amounts of NADW to the south during both years, although the eastern pathway changes substantially between both years. The total NADW transport, which is also considered the MOC, is in the range 16.3–24.5 Sv in 2003 and 17.1–29.6 Sv in 2011, hence with no significant change This study has been performed as part of projects: US CLIVAR Repeat Hydrography Program, which is now part of the International GO-SHIP project, with US funding from the US National Oceanic and Atmospheric Administration (NOAA) Climate ... Article in Journal/Newspaper Antarc* Antarctic NADW North Atlantic Deep Water North Atlantic Digital.CSIC (Spanish National Research Council) Antarctic Indian Mid-Atlantic Ridge Progress in Oceanography 176 102136 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
description |
24 pages, 7 figures, 10 tables, 2 appendices, supplementary material https://doi.org/10.1016/j.pocean.2019.102136 Mass transports for the thermocline, intermediate, deep and abyssal layers in the Atlantic Ocean, at 30°S and for 2003 and 2011, have been estimated using data from GO-SHIP hydrographic transoceanic sections and applying three inverse models with different constraints. The uppermost layers comprise South Atlantic Central Water (SACW) and Antarctic Intermediate Water (AAIW), with a net northward transport in the range of 12.1–14.7 Sv in 2003 and 11.7–17.7 Sv in 2011, which can be considered as the northward returning limb of the Meridional Overturning Circulation (MOC). The western boundary Brazil Current transports twice as much SACW in 2003 (−20.2 ± 0.7 Sv) than in 2011 (−9.7 ± 0.7 Sv). A poleward current consisting of AAIW and Upper Circumpolar Deep Water (UCDW) flows beneath the Brazil Current. The eastern boundary Benguela Current, characterized by a high mesoscale eddy activity, transports 15.6 ± 0.9 Sv in 2003 and 11.2 ± 0.8 Sv in 2011, east of the Walvis Ridge. In the ocean interior, the northward flow is mainly located east of the Mid Atlantic Ridge (MAR) where Agulhas Rings (ARs), observed in both 2003 and 2011, transport warm and salty water from the Indian to the Atlantic Ocean. For the deep layers, the southward transport of North Atlantic Deep Water (NADW) occurs as the Deep Western Boundary Current and also in the eastern basin. The western and eastern basins transport similar amounts of NADW to the south during both years, although the eastern pathway changes substantially between both years. The total NADW transport, which is also considered the MOC, is in the range 16.3–24.5 Sv in 2003 and 17.1–29.6 Sv in 2011, hence with no significant change This study has been performed as part of projects: US CLIVAR Repeat Hydrography Program, which is now part of the International GO-SHIP project, with US funding from the US National Oceanic and Atmospheric Administration (NOAA) Climate ... |
author2 |
National Oceanic and Atmospheric Administration (US) National Science Foundation (US) Ministerio de Economía y Competitividad (España) |
format |
Article in Journal/Newspaper |
author |
Hernández Guerra, Alonso Talley, L. Pelegrí, Josep Lluís Vélez-Belchí, Pedro Baringer, Molly O. Macdonald, Alison McDonagh, Elaine L. |
spellingShingle |
Hernández Guerra, Alonso Talley, L. Pelegrí, Josep Lluís Vélez-Belchí, Pedro Baringer, Molly O. Macdonald, Alison McDonagh, Elaine L. The upper, deep, abyssal and overturning circulation in the Atlantic Ocean at 30°S in 2003 and 2011 |
author_facet |
Hernández Guerra, Alonso Talley, L. Pelegrí, Josep Lluís Vélez-Belchí, Pedro Baringer, Molly O. Macdonald, Alison McDonagh, Elaine L. |
author_sort |
Hernández Guerra, Alonso |
title |
The upper, deep, abyssal and overturning circulation in the Atlantic Ocean at 30°S in 2003 and 2011 |
title_short |
The upper, deep, abyssal and overturning circulation in the Atlantic Ocean at 30°S in 2003 and 2011 |
title_full |
The upper, deep, abyssal and overturning circulation in the Atlantic Ocean at 30°S in 2003 and 2011 |
title_fullStr |
The upper, deep, abyssal and overturning circulation in the Atlantic Ocean at 30°S in 2003 and 2011 |
title_full_unstemmed |
The upper, deep, abyssal and overturning circulation in the Atlantic Ocean at 30°S in 2003 and 2011 |
title_sort |
upper, deep, abyssal and overturning circulation in the atlantic ocean at 30°s in 2003 and 2011 |
publisher |
Elsevier |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/195309 https://doi.org/10.1016/j.pocean.2019.102136 https://doi.org/10.13039/100000001 https://doi.org/10.13039/100000192 https://doi.org/10.13039/501100003329 |
geographic |
Antarctic Indian Mid-Atlantic Ridge |
geographic_facet |
Antarctic Indian Mid-Atlantic Ridge |
genre |
Antarc* Antarctic NADW North Atlantic Deep Water North Atlantic |
genre_facet |
Antarc* Antarctic NADW North Atlantic Deep Water North Atlantic |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-56987-P Preprint https://doi.org/10.1016/j.pocean.2019.102136 Sí issn: 0079-6611 Progress in Oceanography 176: 102136 (2019) http://hdl.handle.net/10261/195309 doi:10.1016/j.pocean.2019.102136 http://dx.doi.org/10.13039/100000001 http://dx.doi.org/10.13039/100000192 http://dx.doi.org/10.13039/501100003329 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.pocean.2019.10213610.13039/10000000110.13039/10000019210.13039/501100003329 |
container_title |
Progress in Oceanography |
container_volume |
176 |
container_start_page |
102136 |
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1790609492567654400 |