Dissolved Organic Carbon in the North Atlantic Meridional Overturning Circulation
| Type | Article | ||||||||||||
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| Date | 2016-05 | ||||||||||||
| Language | English | ||||||||||||
| Author(s) | Fontela Marcos1, Garcia-Ibanez Maria Isabel1, Hansell Dennis A.2, Mercier Herle 3, Perez Fiz F1 |
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| Affiliation(s) | 1 : IIM CSIC, Inst Invest Marinas, Vigo 36208, Spain. 2 : Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, RSMAS OCE, 4600 Rickenbacker Causeway, Miami, FL 33149 USA. 3 : IFREMER, Ctr Brest, Lab Phys Oceans, CNRS,UMR CNRS Ifremer IRD UBO 6523, Plouzane, France. |
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| Source | Scientific Reports (2045-2322) (Nature Publishing Group), 2016-05 , Vol. 6 , N. 26931 , P. 1-9 | ||||||||||||
| DOI | 10.1038/srep26931 | ||||||||||||
| WOS© Times Cited | 28 | ||||||||||||
| Abstract | 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 center dot 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 center dot yr(-1)) is considerable and represents almost a third of the atmospheric CO2 uptake in the region. | ||||||||||||
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