Spiraling pathways of global deep waters to the surface of the Southern Ocean
© The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Nature Communications 8 (2017): 172, doi:10.1038/s41467-017-00197-0. Upwelling of global deep waters to the sea surface in the Southern Ocean closes...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/9200 2023-05-15T13:48:30+02:00 Spiraling pathways of global deep waters to the surface of the Southern Ocean Tamsitt, Veronica Drake, Henri F. Morrison, Adele K. Talley, Lynne D. Dufour, Carolina O. Gray, Alison R. Griffies, Stephen M. Mazloff, Matthew R. Sarmiento, Jorge L. Wang, Jinbo Weijer, Wilbert 2017-08-02 https://hdl.handle.net/1912/9200 en_US eng Nature Publishing Group https://hdl.handle.net/1912/9536 https://doi.org/10.1038/s41467-017-00197-0 Nature Communications 8 (2017): 172 https://hdl.handle.net/1912/9200 doi:10.1038/s41467-017-00197-0 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ CC-BY Nature Communications 8 (2017): 172 doi:10.1038/s41467-017-00197-0 Article 2017 ftwhoas https://doi.org/10.1038/s41467-017-00197-0 2022-05-28T22:59:59Z © The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Nature Communications 8 (2017): 172, doi:10.1038/s41467-017-00197-0. Upwelling of global deep waters to the sea surface in the Southern Ocean closes the global overturning circulation and is fundamentally important for oceanic uptake of carbon and heat, nutrient resupply for sustaining oceanic biological production, and the melt rate of ice shelves. However, the exact pathways and role of topography in Southern Ocean upwelling remain largely unknown. Here we show detailed upwelling pathways in three dimensions, using hydrographic observations and particle tracking in high-resolution models. The analysis reveals that the northern-sourced deep waters enter the Antarctic Circumpolar Current via southward flow along the boundaries of the three ocean basins, before spiraling southeastward and upward through the Antarctic Circumpolar Current. Upwelling is greatly enhanced at five major topographic features, associated with vigorous mesoscale eddy activity. Deep water reaches the upper ocean predominantly south of the Antarctic Circumpolar Current, with a spatially nonuniform distribution. The timescale for half of the deep water to upwell from 30° S to the mixed layer is ~60–90 years. V.T., L.D.T., and M.R.M. were supported by NSF OCE-1357072. A.K.M., H.F.D., and W.W. were supported by the RGCM program of the US Department of Energy under Contract DE-SC0012457. J.L.S. acknowledges NSF’s Southern Ocean Carbon and Climate Observations and Modeling project under NSF PLR-1425989, which partially supported L.D.T. and M.R.M. as well. C.O.D was supported by the National Aeronautics and Space Administration (NASA) under Award NNX14AL40G and by the Princeton Environmental Institute Grand Challenge initiative. A.R.G. was supported by a Climate and Global Change Postdoctoral Fellowship from the National Oceanic and Atmospheric Administration (NOAA). S.M.G. acknowledges the ... Article in Journal/Newspaper Antarc* Antarctic Ice Shelves Southern Ocean Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Antarctic Southern Ocean The Antarctic Nature Communications 8 1 |
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Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
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English |
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© The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Nature Communications 8 (2017): 172, doi:10.1038/s41467-017-00197-0. Upwelling of global deep waters to the sea surface in the Southern Ocean closes the global overturning circulation and is fundamentally important for oceanic uptake of carbon and heat, nutrient resupply for sustaining oceanic biological production, and the melt rate of ice shelves. However, the exact pathways and role of topography in Southern Ocean upwelling remain largely unknown. Here we show detailed upwelling pathways in three dimensions, using hydrographic observations and particle tracking in high-resolution models. The analysis reveals that the northern-sourced deep waters enter the Antarctic Circumpolar Current via southward flow along the boundaries of the three ocean basins, before spiraling southeastward and upward through the Antarctic Circumpolar Current. Upwelling is greatly enhanced at five major topographic features, associated with vigorous mesoscale eddy activity. Deep water reaches the upper ocean predominantly south of the Antarctic Circumpolar Current, with a spatially nonuniform distribution. The timescale for half of the deep water to upwell from 30° S to the mixed layer is ~60–90 years. V.T., L.D.T., and M.R.M. were supported by NSF OCE-1357072. A.K.M., H.F.D., and W.W. were supported by the RGCM program of the US Department of Energy under Contract DE-SC0012457. J.L.S. acknowledges NSF’s Southern Ocean Carbon and Climate Observations and Modeling project under NSF PLR-1425989, which partially supported L.D.T. and M.R.M. as well. C.O.D was supported by the National Aeronautics and Space Administration (NASA) under Award NNX14AL40G and by the Princeton Environmental Institute Grand Challenge initiative. A.R.G. was supported by a Climate and Global Change Postdoctoral Fellowship from the National Oceanic and Atmospheric Administration (NOAA). S.M.G. acknowledges the ... |
format |
Article in Journal/Newspaper |
author |
Tamsitt, Veronica Drake, Henri F. Morrison, Adele K. Talley, Lynne D. Dufour, Carolina O. Gray, Alison R. Griffies, Stephen M. Mazloff, Matthew R. Sarmiento, Jorge L. Wang, Jinbo Weijer, Wilbert |
spellingShingle |
Tamsitt, Veronica Drake, Henri F. Morrison, Adele K. Talley, Lynne D. Dufour, Carolina O. Gray, Alison R. Griffies, Stephen M. Mazloff, Matthew R. Sarmiento, Jorge L. Wang, Jinbo Weijer, Wilbert Spiraling pathways of global deep waters to the surface of the Southern Ocean |
author_facet |
Tamsitt, Veronica Drake, Henri F. Morrison, Adele K. Talley, Lynne D. Dufour, Carolina O. Gray, Alison R. Griffies, Stephen M. Mazloff, Matthew R. Sarmiento, Jorge L. Wang, Jinbo Weijer, Wilbert |
author_sort |
Tamsitt, Veronica |
title |
Spiraling pathways of global deep waters to the surface of the Southern Ocean |
title_short |
Spiraling pathways of global deep waters to the surface of the Southern Ocean |
title_full |
Spiraling pathways of global deep waters to the surface of the Southern Ocean |
title_fullStr |
Spiraling pathways of global deep waters to the surface of the Southern Ocean |
title_full_unstemmed |
Spiraling pathways of global deep waters to the surface of the Southern Ocean |
title_sort |
spiraling pathways of global deep waters to the surface of the southern ocean |
publisher |
Nature Publishing Group |
publishDate |
2017 |
url |
https://hdl.handle.net/1912/9200 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Ice Shelves Southern Ocean |
genre_facet |
Antarc* Antarctic Ice Shelves Southern Ocean |
op_source |
Nature Communications 8 (2017): 172 doi:10.1038/s41467-017-00197-0 |
op_relation |
https://hdl.handle.net/1912/9536 https://doi.org/10.1038/s41467-017-00197-0 Nature Communications 8 (2017): 172 https://hdl.handle.net/1912/9200 doi:10.1038/s41467-017-00197-0 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-017-00197-0 |
container_title |
Nature Communications |
container_volume |
8 |
container_issue |
1 |
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1766249344045940736 |