Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern
In the Pliocene Model Intercomparison Project (PlioMIP), eight state-of-the-art coupled climate models have simulated the mid-Pliocene warm period (mPWP, 3.264 to 3.025 Ma). Here, we compare the Atlantic Meridional Overturning Circulation (AMOC), northward ocean heat transport and ocean stratificati...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2013-07-01
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| Series: | Climate of the Past |
| Online Access: | http://www.clim-past.net/9/1495/2013/cp-9-1495-2013.pdf |
| _version_ | 1818588344419876864 |
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| author | Z.-S. Zhang K. H. Nisancioglu M. A. Chandler A. M. Haywood B. L. Otto-Bliesner G. Ramstein C. Stepanek A. Abe-Ouchi W.-L. Chan F. J. Bragg C. Contoux A. M. Dolan D. J. Hill A. Jost Y. Kamae G. Lohmann D. J. Lunt N. A. Rosenbloom L. E. Sohl H. Ueda |
| author_facet | Z.-S. Zhang K. H. Nisancioglu M. A. Chandler A. M. Haywood B. L. Otto-Bliesner G. Ramstein C. Stepanek A. Abe-Ouchi W.-L. Chan F. J. Bragg C. Contoux A. M. Dolan D. J. Hill A. Jost Y. Kamae G. Lohmann D. J. Lunt N. A. Rosenbloom L. E. Sohl H. Ueda |
| author_sort | Z.-S. Zhang |
| collection | DOAJ |
| description | In the Pliocene Model Intercomparison Project (PlioMIP), eight state-of-the-art coupled climate models have simulated the mid-Pliocene warm period (mPWP, 3.264 to 3.025 Ma). Here, we compare the Atlantic Meridional Overturning Circulation (AMOC), northward ocean heat transport and ocean stratification simulated with these models. None of the models participating in PlioMIP simulates a strong mid-Pliocene AMOC as suggested by earlier proxy studies. Rather, there is no consistent increase in AMOC maximum among the PlioMIP models. The only consistent change in AMOC is a shoaling of the overturning cell in the Atlantic, and a reduced influence of North Atlantic Deep Water (NADW) at depth in the basin. Furthermore, the simulated mid-Pliocene Atlantic northward heat transport is similar to the pre-industrial. These simulations demonstrate that the reconstructed high-latitude mid-Pliocene warming can not be explained as a direct response to an intensification of AMOC and concomitant increase in northward ocean heat transport by the Atlantic. |
| first_indexed | 2024-12-16T09:23:16Z |
| format | Article |
| id | doaj.art-a866fcbeeaa44094a7f644bf2f0d5b9b |
| institution | Directory Open Access Journal |
| issn | 1814-9324 1814-9332 |
| language | English |
| last_indexed | 2024-12-16T09:23:16Z |
| publishDate | 2013-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Climate of the Past |
| spelling | doaj.art-a866fcbeeaa44094a7f644bf2f0d5b9b2022-12-21T22:36:42ZengCopernicus PublicationsClimate of the Past1814-93241814-93322013-07-01941495150410.5194/cp-9-1495-2013Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modernZ.-S. ZhangK. H. NisanciogluM. A. ChandlerA. M. HaywoodB. L. Otto-BliesnerG. RamsteinC. StepanekA. Abe-OuchiW.-L. ChanF. J. BraggC. ContouxA. M. DolanD. J. HillA. JostY. KamaeG. LohmannD. J. LuntN. A. RosenbloomL. E. SohlH. UedaIn the Pliocene Model Intercomparison Project (PlioMIP), eight state-of-the-art coupled climate models have simulated the mid-Pliocene warm period (mPWP, 3.264 to 3.025 Ma). Here, we compare the Atlantic Meridional Overturning Circulation (AMOC), northward ocean heat transport and ocean stratification simulated with these models. None of the models participating in PlioMIP simulates a strong mid-Pliocene AMOC as suggested by earlier proxy studies. Rather, there is no consistent increase in AMOC maximum among the PlioMIP models. The only consistent change in AMOC is a shoaling of the overturning cell in the Atlantic, and a reduced influence of North Atlantic Deep Water (NADW) at depth in the basin. Furthermore, the simulated mid-Pliocene Atlantic northward heat transport is similar to the pre-industrial. These simulations demonstrate that the reconstructed high-latitude mid-Pliocene warming can not be explained as a direct response to an intensification of AMOC and concomitant increase in northward ocean heat transport by the Atlantic.http://www.clim-past.net/9/1495/2013/cp-9-1495-2013.pdf |
| spellingShingle | Z.-S. Zhang K. H. Nisancioglu M. A. Chandler A. M. Haywood B. L. Otto-Bliesner G. Ramstein C. Stepanek A. Abe-Ouchi W.-L. Chan F. J. Bragg C. Contoux A. M. Dolan D. J. Hill A. Jost Y. Kamae G. Lohmann D. J. Lunt N. A. Rosenbloom L. E. Sohl H. Ueda Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern Climate of the Past |
| title | Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern |
| title_full | Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern |
| title_fullStr | Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern |
| title_full_unstemmed | Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern |
| title_short | Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern |
| title_sort | mid pliocene atlantic meridional overturning circulation not unlike modern |
| url | http://www.clim-past.net/9/1495/2013/cp-9-1495-2013.pdf |
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