Dissolved Organic Carbon in the North Atlantic Meridional Overturning Circulation
9 páginas, 4 figuras, 1 tabla.-- This work is licensed under a Creative Commons Attribution 4.0 International License The quantitative role of the Atlantic Meridional Overturning Circulation (AMOC) in dissolved organic carbon (DOC) export is evaluated by combining DOC measurements with observed wate...
| Published in: | Scientific Reports |
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| Main Authors: | , , , , |
| Other Authors: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Nature Publishing Group
2016
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10261/133014 https://doi.org/10.1038/srep26931 https://doi.org/10.13039/501100003329 |
| Summary: | 9 páginas, 4 figuras, 1 tabla.-- This work is licensed under a Creative Commons Attribution 4.0 International License The quantitative role of the Atlantic Meridional Overturning Circulation (AMOC) in dissolved organic carbon (DOC) export is evaluated by combining DOC measurements with observed water mass transports. In the eastern subpolar North Atlantic, both upper and lower limbs of the AMOC transport high-DOC waters. Deep water formation that connects the two limbs of the AMOC results in a high downward export of non-refractory DOC (197 Tg-C·yr−1). Subsequent remineralization in the lower limb of the AMOC, between subpolar and subtropical latitudes, consumes 72% of the DOC exported by the whole Atlantic Ocean. The contribution of DOC to the carbon sequestration in the North Atlantic Ocean (62 Tg-C·yr−1) is considerable and represents almost a third of the atmospheric CO2 uptake in the region For this work M. Fontela was funded by the Spanish Ministry of Economy and Competitiveness (BES-2014-070449) through the BOCATS project (CTM2013-41048-P) supported by the Spanish Government and co-funded by the Fondo Europeo de Desarrollo Regional 2007–2012 (FEDER); and this article is going to be part of her PhD that is attached to the framework of the doctoral program “Marine Science, Technology and Management” (DO*MAR) of the University of Vigo. M.I. García-Ibáñez and F.F. Pérez were supported by the BOCATS project (CTM2013-41048-P) co-funded by the Spanish Government and the Fondo Europeo de Desarrollo Regional (FEDER). D.A. Hansell was supported by US National Science Foundation award OCE-1436748. H. Mercier was supported by the CNRS and the ATLANTOS project (GA 633211) Peer reviewed |
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