Physical and biogeochemical transports structure in the North Atlantic subpolar gyre
21 páginas, 10 figuras, 3 tablas Physical (mass, heat, and salt) and biogeochemical (nutrients, oxygen, alkalinity, total inorganic carbon, and anthropogenic carbon) transports across the transoceanic World Ocean Circulation Experiment (WOCE) A25 section in the subpolar North Atlantic (4x line) obta...
Published in: | Journal of Geophysical Research: Oceans |
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Language: | English |
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William Byrd Press for Johns Hopkins Press
2004
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Online Access: | http://hdl.handle.net/10261/51519 https://doi.org/10.1029/2003JC002015 |
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ftcsic:oai:digital.csic.es:10261/51519 2024-02-11T09:58:44+01:00 Physical and biogeochemical transports structure in the North Atlantic subpolar gyre Álvarez, Marta Pérez, Fiz F. Bryden, Harry L. Ríos, Aida F. 2004 http://hdl.handle.net/10261/51519 https://doi.org/10.1029/2003JC002015 en eng William Byrd Press for Johns Hopkins Press http://dx.doi.org/10.1029/2003JC002015 Journal of Geophysical Research - Part C- Oceans 109: C03027 (2004) 0148-0227 http://hdl.handle.net/10261/51519 doi:10.1029/2003JC002015 2156-2202 open artículo http://purl.org/coar/resource_type/c_6501 2004 ftcsic https://doi.org/10.1029/2003JC002015 2024-01-16T09:38:38Z 21 páginas, 10 figuras, 3 tablas Physical (mass, heat, and salt) and biogeochemical (nutrients, oxygen, alkalinity, total inorganic carbon, and anthropogenic carbon) transports across the transoceanic World Ocean Circulation Experiment (WOCE) A25 section in the subpolar North Atlantic (4x line) obtained previously [ Álvarez et al., 2002 , 2003] are reanalyzed to describe their regional and vertical structure. The water mass distribution in the section is combined with the transport fields to provide the relative contribution from each water mass to the final transport values. The water mass circulation pattern across the section is discussed within the context of the basin-scale thermohaline circulation in the North Atlantic. Eastern North Atlantic Central, influenced Antarctic Intermediate, Mediterranean, and Subarctic Intermediate Waters flow northward with 10.3, 5.6, 1.7, and 2.9 Sv, respectively. The total flux of Lower Deep Water (LDW) across the section is 1 Sv northward. A portion of LDW flowing northward in the Iberian Basin recirculates southward within the eastern basin and about 0.7 Sv flow into the western North Atlantic. About 7 Sv of Labrador Seawater (LSW) from the Labrador Sea cross the 4x section within the North Atlantic Current, and 12 Sv of LSW from the Irminger Sea flow southward within the East Greenland Current. Denmark Strait Overflow Water flows over the western flank of the Irminger basin (1.5 Sv), and Iceland Scotland Overflow Water (ISOW) is mainly transported in the Charlie Gibbs Fracture Zone (6 Sv). ISOW remnants flow southward to the eastern basin, contributing to the eastern basin deep ventilation. LSW and the overflows transport CANT southward across the section. This southward CANT transport is overcome by the northward transport in upper layers; finally, CANT is injected into the subpolar gyre where it accumulates. The cruise was primarily supported by the Natural Environment Research Council (NERC) under the UK WOCE Community Research Program. Spanish participation was ... Article in Journal/Newspaper Antarc* Antarctic Denmark Strait East Greenland east greenland current Greenland Iceland Labrador Sea north atlantic current North Atlantic Subarctic Digital.CSIC (Spanish National Research Council) Antarctic Greenland Irminger Basin ENVELOPE(-36.000,-36.000,61.000,61.000) Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Journal of Geophysical Research: Oceans 109 C3 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
21 páginas, 10 figuras, 3 tablas Physical (mass, heat, and salt) and biogeochemical (nutrients, oxygen, alkalinity, total inorganic carbon, and anthropogenic carbon) transports across the transoceanic World Ocean Circulation Experiment (WOCE) A25 section in the subpolar North Atlantic (4x line) obtained previously [ Álvarez et al., 2002 , 2003] are reanalyzed to describe their regional and vertical structure. The water mass distribution in the section is combined with the transport fields to provide the relative contribution from each water mass to the final transport values. The water mass circulation pattern across the section is discussed within the context of the basin-scale thermohaline circulation in the North Atlantic. Eastern North Atlantic Central, influenced Antarctic Intermediate, Mediterranean, and Subarctic Intermediate Waters flow northward with 10.3, 5.6, 1.7, and 2.9 Sv, respectively. The total flux of Lower Deep Water (LDW) across the section is 1 Sv northward. A portion of LDW flowing northward in the Iberian Basin recirculates southward within the eastern basin and about 0.7 Sv flow into the western North Atlantic. About 7 Sv of Labrador Seawater (LSW) from the Labrador Sea cross the 4x section within the North Atlantic Current, and 12 Sv of LSW from the Irminger Sea flow southward within the East Greenland Current. Denmark Strait Overflow Water flows over the western flank of the Irminger basin (1.5 Sv), and Iceland Scotland Overflow Water (ISOW) is mainly transported in the Charlie Gibbs Fracture Zone (6 Sv). ISOW remnants flow southward to the eastern basin, contributing to the eastern basin deep ventilation. LSW and the overflows transport CANT southward across the section. This southward CANT transport is overcome by the northward transport in upper layers; finally, CANT is injected into the subpolar gyre where it accumulates. The cruise was primarily supported by the Natural Environment Research Council (NERC) under the UK WOCE Community Research Program. Spanish participation was ... |
format |
Article in Journal/Newspaper |
author |
Álvarez, Marta Pérez, Fiz F. Bryden, Harry L. Ríos, Aida F. |
spellingShingle |
Álvarez, Marta Pérez, Fiz F. Bryden, Harry L. Ríos, Aida F. Physical and biogeochemical transports structure in the North Atlantic subpolar gyre |
author_facet |
Álvarez, Marta Pérez, Fiz F. Bryden, Harry L. Ríos, Aida F. |
author_sort |
Álvarez, Marta |
title |
Physical and biogeochemical transports structure in the North Atlantic subpolar gyre |
title_short |
Physical and biogeochemical transports structure in the North Atlantic subpolar gyre |
title_full |
Physical and biogeochemical transports structure in the North Atlantic subpolar gyre |
title_fullStr |
Physical and biogeochemical transports structure in the North Atlantic subpolar gyre |
title_full_unstemmed |
Physical and biogeochemical transports structure in the North Atlantic subpolar gyre |
title_sort |
physical and biogeochemical transports structure in the north atlantic subpolar gyre |
publisher |
William Byrd Press for Johns Hopkins Press |
publishDate |
2004 |
url |
http://hdl.handle.net/10261/51519 https://doi.org/10.1029/2003JC002015 |
long_lat |
ENVELOPE(-36.000,-36.000,61.000,61.000) ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Antarctic Greenland Irminger Basin Irminger Sea |
geographic_facet |
Antarctic Greenland Irminger Basin Irminger Sea |
genre |
Antarc* Antarctic Denmark Strait East Greenland east greenland current Greenland Iceland Labrador Sea north atlantic current North Atlantic Subarctic |
genre_facet |
Antarc* Antarctic Denmark Strait East Greenland east greenland current Greenland Iceland Labrador Sea north atlantic current North Atlantic Subarctic |
op_relation |
http://dx.doi.org/10.1029/2003JC002015 Journal of Geophysical Research - Part C- Oceans 109: C03027 (2004) 0148-0227 http://hdl.handle.net/10261/51519 doi:10.1029/2003JC002015 2156-2202 |
op_rights |
open |
op_doi |
https://doi.org/10.1029/2003JC002015 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
109 |
container_issue |
C3 |
_version_ |
1790594472863596544 |