A sea change in our view of overturning in the subpolar North Atlantic
To provide an observational basis for the Intergovernmental Panel on Climate Change projections of a slowing Atlantic meridional overturning circulation (MOC) in the 21st century, the Overturning in the Subpolar North Atlantic Program (OSNAP) observing system was launched in the summer of 2014. The...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2019-02, Vol.363 (6426), p.516-521 |
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| creator | Lozier, M. S. Li, F. Bacon, S. Bahr, F. Bower, A. S. Cunningham, S. A. de Jong, M. F. de Steur, L. deYoung, B. Fischer, J. Gary, S. F. Greenan, B. J. W. Holliday, N. P. Houk, A. Houpert, L. Inall, M. E. Johns, W. E. Johnson, H. L. Johnson, C. Karstensen, J. Koman, G. Le Bras, I. A. Lin, X. Mackay, N. Marshall, D. P. Mercier, H. Oltmanns, M. Pickart, R. S. Ramsey, A. L. Rayner, D. Straneo1, F. Thierry, V. Torres, D. J. Williams, R. G. Wilson, C. Yang, J. Yashayaev, I. Zhao, J. |
| description | To provide an observational basis for the Intergovernmental Panel on Climate Change projections of a slowing Atlantic meridional overturning circulation (MOC) in the 21st century, the Overturning in the Subpolar North Atlantic Program (OSNAP) observing system was launched in the summer of 2014. The first 21-month record reveals a highly variable overturning circulation responsible for the majority of the heat and freshwater transport across the OSNAP line. In a departure from the prevailing view that changes in deep water formation in the Labrador Sea dominate MOC variability, these results suggest that the conversion of warm, salty, shallow Atlantic waters into colder, fresher, deep waters that move southward in the Irminger and Iceland basins is largely responsible for overturning and its variability in the subpolar basin. |
| doi_str_mv | 10.1126/science.aau6592 |
| format | Article |
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S. ; Li, F. ; Bacon, S. ; Bahr, F. ; Bower, A. S. ; Cunningham, S. A. ; de Jong, M. F. ; de Steur, L. ; deYoung, B. ; Fischer, J. ; Gary, S. F. ; Greenan, B. J. W. ; Holliday, N. P. ; Houk, A. ; Houpert, L. ; Inall, M. E. ; Johns, W. E. ; Johnson, H. L. ; Johnson, C. ; Karstensen, J. ; Koman, G. ; Le Bras, I. A. ; Lin, X. ; Mackay, N. ; Marshall, D. P. ; Mercier, H. ; Oltmanns, M. ; Pickart, R. S. ; Ramsey, A. L. ; Rayner, D. ; Straneo1, F. ; Thierry, V. ; Torres, D. J. ; Williams, R. G. ; Wilson, C. ; Yang, J. ; Yashayaev, I. ; Zhao, J.</creator><creatorcontrib>Lozier, M. S. ; Li, F. ; Bacon, S. ; Bahr, F. ; Bower, A. S. ; Cunningham, S. A. ; de Jong, M. F. ; de Steur, L. ; deYoung, B. ; Fischer, J. ; Gary, S. F. ; Greenan, B. J. W. ; Holliday, N. P. ; Houk, A. ; Houpert, L. ; Inall, M. E. ; Johns, W. E. ; Johnson, H. L. ; Johnson, C. ; Karstensen, J. ; Koman, G. ; Le Bras, I. A. ; Lin, X. ; Mackay, N. ; Marshall, D. P. ; Mercier, H. ; Oltmanns, M. ; Pickart, R. S. ; Ramsey, A. L. ; Rayner, D. ; Straneo1, F. ; Thierry, V. ; Torres, D. J. ; Williams, R. G. ; Wilson, C. ; Yang, J. ; Yashayaev, I. ; Zhao, J.</creatorcontrib><description>To provide an observational basis for the Intergovernmental Panel on Climate Change projections of a slowing Atlantic meridional overturning circulation (MOC) in the 21st century, the Overturning in the Subpolar North Atlantic Program (OSNAP) observing system was launched in the summer of 2014. The first 21-month record reveals a highly variable overturning circulation responsible for the majority of the heat and freshwater transport across the OSNAP line. In a departure from the prevailing view that changes in deep water formation in the Labrador Sea dominate MOC variability, these results suggest that the conversion of warm, salty, shallow Atlantic waters into colder, fresher, deep waters that move southward in the Irminger and Iceland basins is largely responsible for overturning and its variability in the subpolar basin.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.aau6592</identifier><identifier>PMID: 30705189</identifier><language>eng</language><publisher>United States: American Association for the Advancement of Science</publisher><subject>Basins ; Climate change ; Deep water ; Global warming ; Intergovernmental Panel on Climate Change ; Ocean currents ; Sciences of the Universe ; Transport ; Variability ; Water</subject><ispartof>Science (American Association for the Advancement of Science), 2019-02, Vol.363 (6426), p.516-521</ispartof><rights>Copyright © 2019 by the American Association for the Advancement of Science</rights><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.</rights><rights>Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. 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S.</creatorcontrib><creatorcontrib>Li, F.</creatorcontrib><creatorcontrib>Bacon, S.</creatorcontrib><creatorcontrib>Bahr, F.</creatorcontrib><creatorcontrib>Bower, A. S.</creatorcontrib><creatorcontrib>Cunningham, S. A.</creatorcontrib><creatorcontrib>de Jong, M. F.</creatorcontrib><creatorcontrib>de Steur, L.</creatorcontrib><creatorcontrib>deYoung, B.</creatorcontrib><creatorcontrib>Fischer, J.</creatorcontrib><creatorcontrib>Gary, S. F.</creatorcontrib><creatorcontrib>Greenan, B. J. W.</creatorcontrib><creatorcontrib>Holliday, N. P.</creatorcontrib><creatorcontrib>Houk, A.</creatorcontrib><creatorcontrib>Houpert, L.</creatorcontrib><creatorcontrib>Inall, M. E.</creatorcontrib><creatorcontrib>Johns, W. E.</creatorcontrib><creatorcontrib>Johnson, H. L.</creatorcontrib><creatorcontrib>Johnson, C.</creatorcontrib><creatorcontrib>Karstensen, J.</creatorcontrib><creatorcontrib>Koman, G.</creatorcontrib><creatorcontrib>Le Bras, I. 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G.</creatorcontrib><creatorcontrib>Wilson, C.</creatorcontrib><creatorcontrib>Yang, J.</creatorcontrib><creatorcontrib>Yashayaev, I.</creatorcontrib><creatorcontrib>Zhao, J.</creatorcontrib><title>A sea change in our view of overturning in the subpolar North Atlantic</title><title>Science (American Association for the Advancement of Science)</title><addtitle>Science</addtitle><description>To provide an observational basis for the Intergovernmental Panel on Climate Change projections of a slowing Atlantic meridional overturning circulation (MOC) in the 21st century, the Overturning in the Subpolar North Atlantic Program (OSNAP) observing system was launched in the summer of 2014. The first 21-month record reveals a highly variable overturning circulation responsible for the majority of the heat and freshwater transport across the OSNAP line. 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G.</au><au>Wilson, C.</au><au>Yang, J.</au><au>Yashayaev, I.</au><au>Zhao, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A sea change in our view of overturning in the subpolar North Atlantic</atitle><jtitle>Science (American Association for the Advancement of Science)</jtitle><addtitle>Science</addtitle><date>2019-02-01</date><risdate>2019</risdate><volume>363</volume><issue>6426</issue><spage>516</spage><epage>521</epage><pages>516-521</pages><issn>0036-8075</issn><eissn>1095-9203</eissn><abstract>To provide an observational basis for the Intergovernmental Panel on Climate Change projections of a slowing Atlantic meridional overturning circulation (MOC) in the 21st century, the Overturning in the Subpolar North Atlantic Program (OSNAP) observing system was launched in the summer of 2014. The first 21-month record reveals a highly variable overturning circulation responsible for the majority of the heat and freshwater transport across the OSNAP line. In a departure from the prevailing view that changes in deep water formation in the Labrador Sea dominate MOC variability, these results suggest that the conversion of warm, salty, shallow Atlantic waters into colder, fresher, deep waters that move southward in the Irminger and Iceland basins is largely responsible for overturning and its variability in the subpolar basin.</abstract><cop>United States</cop><pub>American Association for the Advancement of Science</pub><pmid>30705189</pmid><doi>10.1126/science.aau6592</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-1940-617X</orcidid><orcidid>https://orcid.org/0000-0003-3525-5786</orcidid><orcidid>https://orcid.org/0000-0003-0108-3947</orcidid><orcidid>https://orcid.org/0000-0001-9439-5442</orcidid><orcidid>https://orcid.org/0000-0002-4145-2623</orcidid><orcidid>https://orcid.org/0000-0001-5683-0570</orcidid><orcidid>https://orcid.org/0000-0002-1736-309X</orcidid><orcidid>https://orcid.org/0000-0003-0952-1446</orcidid><orcidid>https://orcid.org/0000-0002-3180-7558</orcidid><orcidid>https://orcid.org/0000-0002-2471-9373</orcidid><orcidid>https://orcid.org/0000-0002-1735-2366</orcidid><orcidid>https://orcid.org/0000-0002-6458-5146</orcidid><orcidid>https://orcid.org/0000-0001-8750-5631</orcidid><orcidid>https://orcid.org/0000-0001-7678-6706</orcidid><orcidid>https://orcid.org/0000-0002-9733-8002</orcidid><orcidid>https://orcid.org/0000-0002-8959-4938</orcidid><orcidid>https://orcid.org/0000-0003-1602-6478</orcidid><orcidid>https://orcid.org/0000-0002-4435-5618</orcidid><orcidid>https://orcid.org/0000-0002-3073-9813</orcidid><orcidid>https://orcid.org/0000-0002-7826-911X</orcidid><orcidid>https://orcid.org/0000-0003-4070-198X</orcidid><orcidid>https://orcid.org/0000-0002-5199-6579</orcidid><orcidid>https://orcid.org/0000-0002-1624-4275</orcidid><orcidid>https://orcid.org/0000-0003-0891-2912</orcidid><orcidid>https://orcid.org/0000-0001-5044-7079</orcidid><orcidid>https://orcid.org/0000-0002-8213-2554</orcidid><orcidid>https://orcid.org/0000-0003-4129-6349</orcidid><orcidid>https://orcid.org/0000-0002-3623-0276</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0036-8075 |
| ispartof | Science (American Association for the Advancement of Science), 2019-02, Vol.363 (6426), p.516-521 |
| issn | 0036-8075 1095-9203 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_04202256v1 |
| source | Science Magazine |
| subjects | Basins Climate change Deep water Global warming Intergovernmental Panel on Climate Change Ocean currents Sciences of the Universe Transport Variability Water |
| title | A sea change in our view of overturning in the subpolar North Atlantic |
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