Atlantic Ocean CO2 uptake reduced by weakening of the meridional overturning circulation
7 páginas, 4 figuras.-- Proyecto Carbochange Uptake of atmospheric carbon dioxide in the subpolar North Atlantic Ocean declined rapidly between 1990 and 2006. This reduction in carbon dioxide uptake was related to warming at the sea surface, which—according to model simulations—coincided with a redu...
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ftcsic:oai:digital.csic.es:10261/67041 2024-02-11T10:06:13+01:00 Atlantic Ocean CO2 uptake reduced by weakening of the meridional overturning circulation Pérez, Fiz F. Mercier, Herlé Vázquez Rodríguez, Marcos Lherminier, Pascale Velo, A. Pardo, Paula C. Rosón, Gabriel Ríos, Aida F. 2013 http://hdl.handle.net/10261/67041 https://doi.org/10.1038/ngeo1680 en eng Macmillan Publishers #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/264879 http://dx.doi.org/10.1038/ngeo1680 Sí Nature Geoscience 6: 146-152 (2013) 1752-0894 http://hdl.handle.net/10261/67041 doi:10.1038/ngeo1680 1752-0908 open artículo http://purl.org/coar/resource_type/c_6501 2013 ftcsic https://doi.org/10.1038/ngeo1680 2024-01-16T09:45:36Z 7 páginas, 4 figuras.-- Proyecto Carbochange Uptake of atmospheric carbon dioxide in the subpolar North Atlantic Ocean declined rapidly between 1990 and 2006. This reduction in carbon dioxide uptake was related to warming at the sea surface, which—according to model simulations—coincided with a reduction in the Atlantic meridional overturning circulation. The extent to which the slowdown of this circulation system—which transports warm surface waters to the northern high latitudes, and cool deep waters south—contributed to the reduction in carbon uptake has remained uncertain. Here, we use data on the oceanic transport of volume, heat and carbon dioxide to track carbon dioxide uptake in the subtropical and subpolar regions of the North Atlantic Ocean over the past two decades. We separate anthropogenic carbon from natural carbon by assuming that the latter corresponds to a pre-industrial atmosphere, whereas the remaining is anthropogenic. We find that the uptake of anthropogenic carbon dioxide—released by human activities—occurred almost exclusively in the subtropical gyre. In contrast, natural carbon dioxide uptake—which results from natural Earth system processes—dominated in the subpolar gyre. We attribute the weakening of contemporary carbon dioxide uptake in the subpolar North Atlantic to a reduction in the natural component. We show that the slowdown of the meridional overturning circulation was largely responsible for the reduction in carbon uptake, through a reduction of oceanic heat loss to the atmosphere, and for the concomitant decline in anthropogenic CO2 storage in subpolar waters. This work was supported by the Spanish Ministry of Sciences and Innovation and co-funded by the Fondo Europeo de Desarrollo Regional 2007 2012 (FEDER) through the CATARINA project (CTM2010-17141) and through EU FP7 project CARBOCHANGE `Changes in carbon uptake and emissions by oceans in a changing climate', which received funding from the European Commission's seventh Framework Programme EU under grant agreement no. ... Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Nature Geoscience 6 2 146 152 |
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English |
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7 páginas, 4 figuras.-- Proyecto Carbochange Uptake of atmospheric carbon dioxide in the subpolar North Atlantic Ocean declined rapidly between 1990 and 2006. This reduction in carbon dioxide uptake was related to warming at the sea surface, which—according to model simulations—coincided with a reduction in the Atlantic meridional overturning circulation. The extent to which the slowdown of this circulation system—which transports warm surface waters to the northern high latitudes, and cool deep waters south—contributed to the reduction in carbon uptake has remained uncertain. Here, we use data on the oceanic transport of volume, heat and carbon dioxide to track carbon dioxide uptake in the subtropical and subpolar regions of the North Atlantic Ocean over the past two decades. We separate anthropogenic carbon from natural carbon by assuming that the latter corresponds to a pre-industrial atmosphere, whereas the remaining is anthropogenic. We find that the uptake of anthropogenic carbon dioxide—released by human activities—occurred almost exclusively in the subtropical gyre. In contrast, natural carbon dioxide uptake—which results from natural Earth system processes—dominated in the subpolar gyre. We attribute the weakening of contemporary carbon dioxide uptake in the subpolar North Atlantic to a reduction in the natural component. We show that the slowdown of the meridional overturning circulation was largely responsible for the reduction in carbon uptake, through a reduction of oceanic heat loss to the atmosphere, and for the concomitant decline in anthropogenic CO2 storage in subpolar waters. This work was supported by the Spanish Ministry of Sciences and Innovation and co-funded by the Fondo Europeo de Desarrollo Regional 2007 2012 (FEDER) through the CATARINA project (CTM2010-17141) and through EU FP7 project CARBOCHANGE `Changes in carbon uptake and emissions by oceans in a changing climate', which received funding from the European Commission's seventh Framework Programme EU under grant agreement no. ... |
format |
Article in Journal/Newspaper |
author |
Pérez, Fiz F. Mercier, Herlé Vázquez Rodríguez, Marcos Lherminier, Pascale Velo, A. Pardo, Paula C. Rosón, Gabriel Ríos, Aida F. |
spellingShingle |
Pérez, Fiz F. Mercier, Herlé Vázquez Rodríguez, Marcos Lherminier, Pascale Velo, A. Pardo, Paula C. Rosón, Gabriel Ríos, Aida F. Atlantic Ocean CO2 uptake reduced by weakening of the meridional overturning circulation |
author_facet |
Pérez, Fiz F. Mercier, Herlé Vázquez Rodríguez, Marcos Lherminier, Pascale Velo, A. Pardo, Paula C. Rosón, Gabriel Ríos, Aida F. |
author_sort |
Pérez, Fiz F. |
title |
Atlantic Ocean CO2 uptake reduced by weakening of the meridional overturning circulation |
title_short |
Atlantic Ocean CO2 uptake reduced by weakening of the meridional overturning circulation |
title_full |
Atlantic Ocean CO2 uptake reduced by weakening of the meridional overturning circulation |
title_fullStr |
Atlantic Ocean CO2 uptake reduced by weakening of the meridional overturning circulation |
title_full_unstemmed |
Atlantic Ocean CO2 uptake reduced by weakening of the meridional overturning circulation |
title_sort |
atlantic ocean co2 uptake reduced by weakening of the meridional overturning circulation |
publisher |
Macmillan Publishers |
publishDate |
2013 |
url |
http://hdl.handle.net/10261/67041 https://doi.org/10.1038/ngeo1680 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/264879 http://dx.doi.org/10.1038/ngeo1680 Sí Nature Geoscience 6: 146-152 (2013) 1752-0894 http://hdl.handle.net/10261/67041 doi:10.1038/ngeo1680 1752-0908 |
op_rights |
open |
op_doi |
https://doi.org/10.1038/ngeo1680 |
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Nature Geoscience |
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6 |
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2 |
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146 |
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152 |
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