Reframing the carbon cycle of the subpolar Southern Ocean
Global climate is critically sensitive to physical and biogeochemical dynamics in the subpolar Southern Ocean, since it is here that deep, carbon-rich layers of the world ocean outcrop and exchange carbon with the atmosphere. Here, we present evidence that the conventional framework for the subpolar...
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ftpubmed:oai:pubmedcentral.nih.gov:6713492 2023-05-15T18:23:41+02:00 Reframing the carbon cycle of the subpolar Southern Ocean MacGilchrist, Graeme A. Naveira Garabato, Alberto C. Brown, Peter J. Jullion, Loïc Bacon, Sheldon Bakker, Dorothee C. E. Hoppema, Mario Meredith, Michael P. Torres-Valdés, Sinhué 2019-08-28 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6713492/ https://doi.org/10.1126/sciadv.aav6410 en eng American Association for the Advancement of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6713492/ http://dx.doi.org/10.1126/sciadv.aav6410 Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. CC-BY-NC Research Articles Text 2019 ftpubmed https://doi.org/10.1126/sciadv.aav6410 2019-09-08T00:40:21Z Global climate is critically sensitive to physical and biogeochemical dynamics in the subpolar Southern Ocean, since it is here that deep, carbon-rich layers of the world ocean outcrop and exchange carbon with the atmosphere. Here, we present evidence that the conventional framework for the subpolar Southern Ocean carbon cycle, which attributes a dominant role to the vertical overturning circulation and shelf-sea processes, fundamentally misrepresents the drivers of regional carbon uptake. Observations in the Weddell Gyre—a key representative region of the subpolar Southern Ocean—show that the rate of carbon uptake is set by an interplay between the Gyre’s horizontal circulation and the remineralization at mid-depths of organic carbon sourced from biological production in the central gyre. These results demonstrate that reframing the carbon cycle of the subpolar Southern Ocean is an essential step to better define its role in past and future climate change. Text Southern Ocean PubMed Central (PMC) Southern Ocean Weddell Science Advances 5 8 eaav6410 |
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Research Articles |
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Research Articles MacGilchrist, Graeme A. Naveira Garabato, Alberto C. Brown, Peter J. Jullion, Loïc Bacon, Sheldon Bakker, Dorothee C. E. Hoppema, Mario Meredith, Michael P. Torres-Valdés, Sinhué Reframing the carbon cycle of the subpolar Southern Ocean |
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Research Articles |
description |
Global climate is critically sensitive to physical and biogeochemical dynamics in the subpolar Southern Ocean, since it is here that deep, carbon-rich layers of the world ocean outcrop and exchange carbon with the atmosphere. Here, we present evidence that the conventional framework for the subpolar Southern Ocean carbon cycle, which attributes a dominant role to the vertical overturning circulation and shelf-sea processes, fundamentally misrepresents the drivers of regional carbon uptake. Observations in the Weddell Gyre—a key representative region of the subpolar Southern Ocean—show that the rate of carbon uptake is set by an interplay between the Gyre’s horizontal circulation and the remineralization at mid-depths of organic carbon sourced from biological production in the central gyre. These results demonstrate that reframing the carbon cycle of the subpolar Southern Ocean is an essential step to better define its role in past and future climate change. |
format |
Text |
author |
MacGilchrist, Graeme A. Naveira Garabato, Alberto C. Brown, Peter J. Jullion, Loïc Bacon, Sheldon Bakker, Dorothee C. E. Hoppema, Mario Meredith, Michael P. Torres-Valdés, Sinhué |
author_facet |
MacGilchrist, Graeme A. Naveira Garabato, Alberto C. Brown, Peter J. Jullion, Loïc Bacon, Sheldon Bakker, Dorothee C. E. Hoppema, Mario Meredith, Michael P. Torres-Valdés, Sinhué |
author_sort |
MacGilchrist, Graeme A. |
title |
Reframing the carbon cycle of the subpolar Southern Ocean |
title_short |
Reframing the carbon cycle of the subpolar Southern Ocean |
title_full |
Reframing the carbon cycle of the subpolar Southern Ocean |
title_fullStr |
Reframing the carbon cycle of the subpolar Southern Ocean |
title_full_unstemmed |
Reframing the carbon cycle of the subpolar Southern Ocean |
title_sort |
reframing the carbon cycle of the subpolar southern ocean |
publisher |
American Association for the Advancement of Science |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6713492/ https://doi.org/10.1126/sciadv.aav6410 |
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Southern Ocean Weddell |
geographic_facet |
Southern Ocean Weddell |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6713492/ http://dx.doi.org/10.1126/sciadv.aav6410 |
op_rights |
Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
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CC-BY-NC |
op_doi |
https://doi.org/10.1126/sciadv.aav6410 |
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Science Advances |
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5 |
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8 |
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