Water mass distributions and transports for the 2014 GEOVIDE cruise in the North Atlantic
16 pages, 6 figures, 1 table.-- This work is distributed under the Creative Commons Attribution 4.0 License We present the distribution of water masses along the GEOTRACES-GA01 section during the GEOVIDE cruise, which crossed the subpolar North Atlantic Ocean and the Labrador Sea in the summer of 20...
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European Geosciences Union
2018
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Online Access: | http://hdl.handle.net/10261/164400 https://doi.org/10.5194/bg-15-2075-2018 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100003329 |
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ftcsic:oai:digital.csic.es:10261/164400 2024-02-11T10:03:27+01:00 Water mass distributions and transports for the 2014 GEOVIDE cruise in the North Atlantic García-Ibáñez, Maribel I. Pérez, Fiz F. Lherminier, Pascale Zunino, P. Mercier, Herlé Tréguer, P. Ministerio de Economía y Competitividad (España) European Commission 2018 http://hdl.handle.net/10261/164400 https://doi.org/10.5194/bg-15-2075-2018 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100003329 en eng European Geosciences Union #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/633211 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2013-41048-P Publisher's version https://doi.org/10.5194/bg-15-2075-2018 Sí Biogeosciences 15: 2075-2090 (2018) 1726-4170 http://hdl.handle.net/10261/164400 doi:10.5194/bg-15-2075-2018 1726-4189 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 open artículo http://purl.org/coar/resource_type/c_6501 2018 ftcsic https://doi.org/10.5194/bg-15-2075-201810.13039/50110000078010.13039/501100003329 2024-01-16T10:30:13Z 16 pages, 6 figures, 1 table.-- This work is distributed under the Creative Commons Attribution 4.0 License We present the distribution of water masses along the GEOTRACES-GA01 section during the GEOVIDE cruise, which crossed the subpolar North Atlantic Ocean and the Labrador Sea in the summer of 2014. The water mass structure resulting from an extended optimum multiparameter (eOMP) analysis provides the framework for interpreting the observed distributions of trace elements and their isotopes. Central Waters and Subpolar Mode Waters (SPMW) dominated the upper part of the GEOTRACESGA01 section. At intermediate depths, the dominant water mass was Labrador Sea Water, while the deep parts of the section were filled by Iceland–Scotland Overflow Water (ISOW) and North-East Atlantic Deep Water. We also evaluate the water mass volume transports across the 2014 OVIDE line (Portugal to Greenland section) by combining the water mass fractions resulting from the eOMP analysis with the absolute geostrophic velocity field estimated through a box inverse model. This allowed us to assess the relative contribution of each water mass to the transport across the section. Finally, we discuss the changes in the distribution and transport of water masses between the 2014 OVIDE line and the 2002–2010 mean state. At the upper and intermediate water levels, colder end-members of the water masses replaced the warmer ones in 2014 with respect to 2002–2010, in agreement with the long-term cooling of the North Atlantic Subpolar Gyre that started in the mid-2000s. Below 2000 dbar, ISOW increased its contribution in 2014 with respect to 2002–2010, with the increase being consistent with other estimates of ISOWtransports along 58–59 N.We also observed an increase in SPMW in the East Greenland Irminger Current in 2014 with respect to 2002–2010, which supports the recent deep convection events in the Irminger Sea. From the assessment of the relative water mass contribution to the Atlantic Meridional Overturning Circulation (AMOC) across the ... Article in Journal/Newspaper East Greenland Greenland Iceland Labrador Sea North Atlantic North East Atlantic Digital.CSIC (Spanish National Research Council) Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Biogeosciences 15 7 2075 2090 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
16 pages, 6 figures, 1 table.-- This work is distributed under the Creative Commons Attribution 4.0 License We present the distribution of water masses along the GEOTRACES-GA01 section during the GEOVIDE cruise, which crossed the subpolar North Atlantic Ocean and the Labrador Sea in the summer of 2014. The water mass structure resulting from an extended optimum multiparameter (eOMP) analysis provides the framework for interpreting the observed distributions of trace elements and their isotopes. Central Waters and Subpolar Mode Waters (SPMW) dominated the upper part of the GEOTRACESGA01 section. At intermediate depths, the dominant water mass was Labrador Sea Water, while the deep parts of the section were filled by Iceland–Scotland Overflow Water (ISOW) and North-East Atlantic Deep Water. We also evaluate the water mass volume transports across the 2014 OVIDE line (Portugal to Greenland section) by combining the water mass fractions resulting from the eOMP analysis with the absolute geostrophic velocity field estimated through a box inverse model. This allowed us to assess the relative contribution of each water mass to the transport across the section. Finally, we discuss the changes in the distribution and transport of water masses between the 2014 OVIDE line and the 2002–2010 mean state. At the upper and intermediate water levels, colder end-members of the water masses replaced the warmer ones in 2014 with respect to 2002–2010, in agreement with the long-term cooling of the North Atlantic Subpolar Gyre that started in the mid-2000s. Below 2000 dbar, ISOW increased its contribution in 2014 with respect to 2002–2010, with the increase being consistent with other estimates of ISOWtransports along 58–59 N.We also observed an increase in SPMW in the East Greenland Irminger Current in 2014 with respect to 2002–2010, which supports the recent deep convection events in the Irminger Sea. From the assessment of the relative water mass contribution to the Atlantic Meridional Overturning Circulation (AMOC) across the ... |
author2 |
Ministerio de Economía y Competitividad (España) European Commission |
format |
Article in Journal/Newspaper |
author |
García-Ibáñez, Maribel I. Pérez, Fiz F. Lherminier, Pascale Zunino, P. Mercier, Herlé Tréguer, P. |
spellingShingle |
García-Ibáñez, Maribel I. Pérez, Fiz F. Lherminier, Pascale Zunino, P. Mercier, Herlé Tréguer, P. Water mass distributions and transports for the 2014 GEOVIDE cruise in the North Atlantic |
author_facet |
García-Ibáñez, Maribel I. Pérez, Fiz F. Lherminier, Pascale Zunino, P. Mercier, Herlé Tréguer, P. |
author_sort |
García-Ibáñez, Maribel I. |
title |
Water mass distributions and transports for the 2014 GEOVIDE cruise in the North Atlantic |
title_short |
Water mass distributions and transports for the 2014 GEOVIDE cruise in the North Atlantic |
title_full |
Water mass distributions and transports for the 2014 GEOVIDE cruise in the North Atlantic |
title_fullStr |
Water mass distributions and transports for the 2014 GEOVIDE cruise in the North Atlantic |
title_full_unstemmed |
Water mass distributions and transports for the 2014 GEOVIDE cruise in the North Atlantic |
title_sort |
water mass distributions and transports for the 2014 geovide cruise in the north atlantic |
publisher |
European Geosciences Union |
publishDate |
2018 |
url |
http://hdl.handle.net/10261/164400 https://doi.org/10.5194/bg-15-2075-2018 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100003329 |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Greenland Irminger Sea |
geographic_facet |
Greenland Irminger Sea |
genre |
East Greenland Greenland Iceland Labrador Sea North Atlantic North East Atlantic |
genre_facet |
East Greenland Greenland Iceland Labrador Sea North Atlantic North East Atlantic |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/633211 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2013-41048-P Publisher's version https://doi.org/10.5194/bg-15-2075-2018 Sí Biogeosciences 15: 2075-2090 (2018) 1726-4170 http://hdl.handle.net/10261/164400 doi:10.5194/bg-15-2075-2018 1726-4189 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 |
op_rights |
open |
op_doi |
https://doi.org/10.5194/bg-15-2075-201810.13039/50110000078010.13039/501100003329 |
container_title |
Biogeosciences |
container_volume |
15 |
container_issue |
7 |
container_start_page |
2075 |
op_container_end_page |
2090 |
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1790599693796900864 |