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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ftsouthampton:oai:eprints.soton.ac.uk:433762 2023-08-27T04:12:08+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 text https://eprints.soton.ac.uk/433762/ https://eprints.soton.ac.uk/433762/1/eaav6410.full.pdf en English eng https://eprints.soton.ac.uk/433762/1/eaav6410.full.pdf Macgilchrist, Graeme A., Naveira Garabato, Alberto C., Brown, Peter J., Jullion, Loïc, Bacon, Sheldon, Bakker, Dorothee C. E., Hoppema, Mario, Meredith, Michael P. and Torres-valdés, Sinhué (2019) Reframing the carbon cycle of the subpolar Southern Ocean. Science Advances, 5 (8), [eaav6410]. (doi:10.1126/sciadv.aav6410 <http://dx.doi.org/10.1126/sciadv.aav6410>). cc_by_nc_4 Article PeerReviewed 2019 ftsouthampton https://doi.org/10.1126/sciadv.aav6410 2023-08-03T22:24:11Z 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. Article in Journal/Newspaper Southern Ocean University of Southampton: e-Prints Soton Southern Ocean Weddell Science Advances 5 8 eaav6410 |
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University of Southampton: e-Prints Soton |
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ftsouthampton |
language |
English |
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 |
Article in Journal/Newspaper |
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 |
spellingShingle |
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 |
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 |
publishDate |
2019 |
url |
https://eprints.soton.ac.uk/433762/ https://eprints.soton.ac.uk/433762/1/eaav6410.full.pdf |
geographic |
Southern Ocean Weddell |
geographic_facet |
Southern Ocean Weddell |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://eprints.soton.ac.uk/433762/1/eaav6410.full.pdf Macgilchrist, Graeme A., Naveira Garabato, Alberto C., Brown, Peter J., Jullion, Loïc, Bacon, Sheldon, Bakker, Dorothee C. E., Hoppema, Mario, Meredith, Michael P. and Torres-valdés, Sinhué (2019) Reframing the carbon cycle of the subpolar Southern Ocean. Science Advances, 5 (8), [eaav6410]. (doi:10.1126/sciadv.aav6410 <http://dx.doi.org/10.1126/sciadv.aav6410>). |
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cc_by_nc_4 |
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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eaav6410 |
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