Journal
SCIENTIFIC REPORTS
Volume 6, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep35473
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Funding
- Flagship Project RITMARE - The Italian Research for the Sea - Italian Ministry of Education, University, and Research within the National Research Program
- National Aeronautics and Space Administration [NNX14AL85G]
- National Oceanic and Atmospheric Administration, US Department of Commerce [NA17RJ2612, NA08OAR4320752]
- National Science Foundation [OCE-1155983]
- U.K. NERC IRF [NE/M017826/1]
- KeyCrafts grant [2012-001]
- CICS grant [NA08OAR4320752, NA14OAR4320106]
- NASA grant [NNX12AQ22G]
- NSF grant [OCE-0825163, WHOI P.O. C119245, PLR-1425989]
- DOE UT-Battelle contract [4000133565]
- NERC [NE/M017826/1, noc010010] Funding Source: UKRI
- Grants-in-Aid for Scientific Research [24121003] Funding Source: KAKEN
- Office of Polar Programs (OPP)
- Directorate For Geosciences [1425989] Funding Source: National Science Foundation
- Natural Environment Research Council [noc010010, NE/M017826/1] Funding Source: researchfish
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The shallow overturning circulation of the oceans transports heat from the tropics to the mid-latitudes. This overturning also influences the uptake and storage of anthropogenic carbon (Cant). We demonstrate this by quantifying the relative importance of ocean thermodynamics, circulation and biogeochemistry in a global biochemistry and circulation model. Almost 2/3 of the Cant ocean uptake enters via gas exchange in waters that are lighter than the base of the ventilated thermocline. However, almost 2/3 of the excess Cant is stored below the thermocline. Our analysis shows that subtropical waters are a dominant component in the formation of subpolar waters and that these water masses essentially form a common Cant reservoir. This new method developed and presented here is intrinsically Lagrangian, as it by construction only considers the velocity or transport of waters across isopycnals. More generally, our approach provides an integral framework for linking ocean thermodynamics with biogeochemistry.
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