North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams
10 pages, 5 figures.-- This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) In the North Atlantic, there are two main western boundary currents related to the Atlantic Meridional Overturning Circulation (AMOC): the Gulf Stream flowing northwa...
Published in: | Frontiers in Marine Science |
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Online Access: | http://hdl.handle.net/10261/233556 https://doi.org/10.3389/fmars.2020.593757 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100000780 |
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ftcsic:oai:digital.csic.es:10261/233556 2024-02-11T10:03:27+01:00 North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams Fontela, Marcos Pérez, Fiz F. Mercier, Herlé Lherminier, Pascale Ministerio de Economía y Competitividad (España) European Commission 2020 http://hdl.handle.net/10261/233556 https://doi.org/10.3389/fmars.2020.593757 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100000780 en eng Frontiers Media #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-76146-C3-1-R info:eu-repo/grantAgreement/EC/H2020/820989 Publisher's version https://doi.org/10.3389/fmars.2020.593757 Sí Frontiers in Marine Science 7: 593757 (2020) http://hdl.handle.net/10261/233556 doi:10.3389/fmars.2020.593757 2296-7745 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780 open Dissolved organic carbon North Atlantic Carbon budgets Carbon dioxide Biogeochemistry Atlantic Meridional Overturning Circulation artículo http://purl.org/coar/resource_type/c_6501 2020 ftcsic https://doi.org/10.3389/fmars.2020.59375710.13039/50110000332910.13039/501100000780 2024-01-16T11:04:25Z 10 pages, 5 figures.-- This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) In the North Atlantic, there are two main western boundary currents related to the Atlantic Meridional Overturning Circulation (AMOC): the Gulf Stream flowing northward and the Deep Western Boundary Current (DWBC) flowing southward. Here we analyze data from the OVIDE section (GO-SHIP A25 Portugal-Greenland 40–60°N) that crosses the DWBC and the northward extension of the Gulf Stream, the North Atlantic Current. We show that North Atlantic western boundary currents play a key role in the transport of dissolved organic matter, specifically dissolved organic carbon (DOC). Revisited transports and budgets of DOC with new available data identify the eastern Subpolar North Atlantic (eSPNA) as an important source of locally produced organic matter for the North Atlantic and a key region in the supply of bioavailable DOC to the deep ocean. The East Greenland Current, and its upstream source the East Reykjanes Ridge Current on the eastern flank of the mid-Atlantic ridge, are export pathways of bioavailable DOC toward subtropical latitudes. The fast overturning and subsequent remineralization of DOC produced in the autotrophic eSPNA explains up to 38% of the total oxygen consumption in the deep North Atlantic between the OVIDE section and 24°N. Carbon budgets that do not take into account this organic remineralization process overestimates the natural uptake of carbon dioxide (CO2) from the atmosphere by one third. The inclusion of DOC transports in regional carbon budgets reconciles the estimates of CO2 uptake in the North Atlantic between model and observations For this work MF was funded by the Spanish Ministry of Economy and Competitiveness (BES-2014-070449) supported by the Spanish Government and co-funded by the Fondo Europeo de Desarrollo Regional 2007–2012 (FEDER) and by Portuguese national funds from FCT – Foundation for Science and Technology through project ... Article in Journal/Newspaper East Greenland east greenland current Greenland north atlantic current North Atlantic Digital.CSIC (Spanish National Research Council) Greenland Mid-Atlantic Ridge Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Frontiers in Marine Science 7 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Dissolved organic carbon North Atlantic Carbon budgets Carbon dioxide Biogeochemistry Atlantic Meridional Overturning Circulation |
spellingShingle |
Dissolved organic carbon North Atlantic Carbon budgets Carbon dioxide Biogeochemistry Atlantic Meridional Overturning Circulation Fontela, Marcos Pérez, Fiz F. Mercier, Herlé Lherminier, Pascale North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams |
topic_facet |
Dissolved organic carbon North Atlantic Carbon budgets Carbon dioxide Biogeochemistry Atlantic Meridional Overturning Circulation |
description |
10 pages, 5 figures.-- This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) In the North Atlantic, there are two main western boundary currents related to the Atlantic Meridional Overturning Circulation (AMOC): the Gulf Stream flowing northward and the Deep Western Boundary Current (DWBC) flowing southward. Here we analyze data from the OVIDE section (GO-SHIP A25 Portugal-Greenland 40–60°N) that crosses the DWBC and the northward extension of the Gulf Stream, the North Atlantic Current. We show that North Atlantic western boundary currents play a key role in the transport of dissolved organic matter, specifically dissolved organic carbon (DOC). Revisited transports and budgets of DOC with new available data identify the eastern Subpolar North Atlantic (eSPNA) as an important source of locally produced organic matter for the North Atlantic and a key region in the supply of bioavailable DOC to the deep ocean. The East Greenland Current, and its upstream source the East Reykjanes Ridge Current on the eastern flank of the mid-Atlantic ridge, are export pathways of bioavailable DOC toward subtropical latitudes. The fast overturning and subsequent remineralization of DOC produced in the autotrophic eSPNA explains up to 38% of the total oxygen consumption in the deep North Atlantic between the OVIDE section and 24°N. Carbon budgets that do not take into account this organic remineralization process overestimates the natural uptake of carbon dioxide (CO2) from the atmosphere by one third. The inclusion of DOC transports in regional carbon budgets reconciles the estimates of CO2 uptake in the North Atlantic between model and observations For this work MF was funded by the Spanish Ministry of Economy and Competitiveness (BES-2014-070449) supported by the Spanish Government and co-funded by the Fondo Europeo de Desarrollo Regional 2007–2012 (FEDER) and by Portuguese national funds from FCT – Foundation for Science and Technology through project ... |
author2 |
Ministerio de Economía y Competitividad (España) European Commission |
format |
Article in Journal/Newspaper |
author |
Fontela, Marcos Pérez, Fiz F. Mercier, Herlé Lherminier, Pascale |
author_facet |
Fontela, Marcos Pérez, Fiz F. Mercier, Herlé Lherminier, Pascale |
author_sort |
Fontela, Marcos |
title |
North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams |
title_short |
North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams |
title_full |
North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams |
title_fullStr |
North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams |
title_full_unstemmed |
North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams |
title_sort |
north atlantic western boundary currents are intense dissolved organic carbon streams |
publisher |
Frontiers Media |
publishDate |
2020 |
url |
http://hdl.handle.net/10261/233556 https://doi.org/10.3389/fmars.2020.593757 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100000780 |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Greenland Mid-Atlantic Ridge Reykjanes |
geographic_facet |
Greenland Mid-Atlantic Ridge Reykjanes |
genre |
East Greenland east greenland current Greenland north atlantic current North Atlantic |
genre_facet |
East Greenland east greenland current Greenland north atlantic current 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/CTM2016-76146-C3-1-R info:eu-repo/grantAgreement/EC/H2020/820989 Publisher's version https://doi.org/10.3389/fmars.2020.593757 Sí Frontiers in Marine Science 7: 593757 (2020) http://hdl.handle.net/10261/233556 doi:10.3389/fmars.2020.593757 2296-7745 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780 |
op_rights |
open |
op_doi |
https://doi.org/10.3389/fmars.2020.59375710.13039/50110000332910.13039/501100000780 |
container_title |
Frontiers in Marine Science |
container_volume |
7 |
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1790599695165292544 |