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...
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ftcopernicus:oai:publications.copernicus.org:cp19313 2023-05-15T17:13:53+02:00 Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern Zhang, Z.-S. Nisancioglu, K. H. Chandler, M. A. Haywood, A. M. Otto-Bliesner, B. L. Ramstein, G. Stepanek, C. Abe-Ouchi, A. Chan, W.-L. Bragg, F. J. Contoux, C. Dolan, A. M. Hill, D. J. Jost, A. Kamae, Y. Lohmann, G. Lunt, D. J. Rosenbloom, N. A. Sohl, L. E. Ueda, H. 2018-09-27 application/pdf https://doi.org/10.5194/cp-9-1495-2013 https://cp.copernicus.org/articles/9/1495/2013/ eng eng doi:10.5194/cp-9-1495-2013 https://cp.copernicus.org/articles/9/1495/2013/ eISSN: 1814-9332 Text 2018 ftcopernicus https://doi.org/10.5194/cp-9-1495-2013 2020-07-20T16:25:24Z 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. Text NADW North Atlantic Deep Water North Atlantic Copernicus Publications: E-Journals Climate of the Past 9 4 1495 1504 |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
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. |
format |
Text |
author |
Zhang, Z.-S. Nisancioglu, K. H. Chandler, M. A. Haywood, A. M. Otto-Bliesner, B. L. Ramstein, G. Stepanek, C. Abe-Ouchi, A. Chan, W.-L. Bragg, F. J. Contoux, C. Dolan, A. M. Hill, D. J. Jost, A. Kamae, Y. Lohmann, G. Lunt, D. J. Rosenbloom, N. A. Sohl, L. E. Ueda, H. |
spellingShingle |
Zhang, Z.-S. Nisancioglu, K. H. Chandler, M. A. Haywood, A. M. Otto-Bliesner, B. L. Ramstein, G. Stepanek, C. Abe-Ouchi, A. Chan, W.-L. Bragg, F. J. Contoux, C. Dolan, A. M. Hill, D. J. Jost, A. Kamae, Y. Lohmann, G. Lunt, D. J. Rosenbloom, N. A. Sohl, L. E. Ueda, H. Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern |
author_facet |
Zhang, Z.-S. Nisancioglu, K. H. Chandler, M. A. Haywood, A. M. Otto-Bliesner, B. L. Ramstein, G. Stepanek, C. Abe-Ouchi, A. Chan, W.-L. Bragg, F. J. Contoux, C. Dolan, A. M. Hill, D. J. Jost, A. Kamae, Y. Lohmann, G. Lunt, D. J. Rosenbloom, N. A. Sohl, L. E. Ueda, H. |
author_sort |
Zhang, Z.-S. |
title |
Mid-pliocene Atlantic Meridional Overturning Circulation not unlike modern |
title_short |
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_sort |
mid-pliocene atlantic meridional overturning circulation not unlike modern |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-9-1495-2013 https://cp.copernicus.org/articles/9/1495/2013/ |
genre |
NADW North Atlantic Deep Water North Atlantic |
genre_facet |
NADW North Atlantic Deep Water North Atlantic |
op_source |
eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-9-1495-2013 https://cp.copernicus.org/articles/9/1495/2013/ |
op_doi |
https://doi.org/10.5194/cp-9-1495-2013 |
container_title |
Climate of the Past |
container_volume |
9 |
container_issue |
4 |
container_start_page |
1495 |
op_container_end_page |
1504 |
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1766071079793590272 |