Mid-Pliocene Atlantic Meridional Overturning Circulation simulated in PlioMIP2
In the Pliocene Model Intercomparison Project Phase 2 (PlioMIP2), coupled climate models have been used to simulate an interglacial climate during the mid-Piacenzian warm period (mPWP; 3.264 to 3.025 Ma ). Here, we compare the Atlantic Meridional Overturning Circulation (AMOC), poleward ocean heat t...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://doi.org/10.5194/cp-17-529-2021 https://cp.copernicus.org/articles/17/529/2021/ |
id |
ftcopernicus:oai:publications.copernicus.org:cp89600 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:cp89600 2023-05-15T17:28:30+02:00 Mid-Pliocene Atlantic Meridional Overturning Circulation simulated in PlioMIP2 Zhang, Zhongshi Li, Xiangyu Guo, Chuncheng Otterå, Odd Helge Nisancioglu, Kerim H. Tan, Ning Contoux, Camille Ramstein, Gilles Feng, Ran Otto-Bliesner, Bette L. Brady, Esther Chandan, Deepak Peltier, W. Richard Baatsen, Michiel L. J. Heydt, Anna S. Weiffenbach, Julia E. Stepanek, Christian Lohmann, Gerrit Zhang, Qiong Li, Qiang Chandler, Mark A. Sohl, Linda E. Haywood, Alan M. Hunter, Stephen J. Tindall, Julia C. Williams, Charles Lunt, Daniel J. Chan, Wing-Le Abe-Ouchi, Ayako 2021-02-25 application/pdf https://doi.org/10.5194/cp-17-529-2021 https://cp.copernicus.org/articles/17/529/2021/ eng eng doi:10.5194/cp-17-529-2021 https://cp.copernicus.org/articles/17/529/2021/ eISSN: 1814-9332 Text 2021 ftcopernicus https://doi.org/10.5194/cp-17-529-2021 2021-03-01T17:22:14Z In the Pliocene Model Intercomparison Project Phase 2 (PlioMIP2), coupled climate models have been used to simulate an interglacial climate during the mid-Piacenzian warm period (mPWP; 3.264 to 3.025 Ma ). Here, we compare the Atlantic Meridional Overturning Circulation (AMOC), poleward ocean heat transport and sea surface warming in the Atlantic simulated with these models. In PlioMIP2, all models simulate an intensified mid-Pliocene AMOC. However, there is no consistent response in the simulated Atlantic ocean heat transport nor in the depth of the Atlantic overturning cell. The models show a large spread in the simulated AMOC maximum, the Atlantic ocean heat transport and the surface warming in the North Atlantic. Although a few models simulate a surface warming of ∼ 8–12 ∘ C in the North Atlantic, similar to the reconstruction from Pliocene Research, Interpretation and Synoptic Mapping (PRISM) version 4, most models appear to underestimate this warming. The large model spread and model–data discrepancies in the PlioMIP2 ensemble do not support the hypothesis that an intensification of the AMOC, together with an increase in northward ocean heat transport, is the dominant mechanism for the mid-Pliocene warm climate over the North Atlantic. Text North Atlantic Copernicus Publications: E-Journals Climate of the Past 17 1 529 543 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
In the Pliocene Model Intercomparison Project Phase 2 (PlioMIP2), coupled climate models have been used to simulate an interglacial climate during the mid-Piacenzian warm period (mPWP; 3.264 to 3.025 Ma ). Here, we compare the Atlantic Meridional Overturning Circulation (AMOC), poleward ocean heat transport and sea surface warming in the Atlantic simulated with these models. In PlioMIP2, all models simulate an intensified mid-Pliocene AMOC. However, there is no consistent response in the simulated Atlantic ocean heat transport nor in the depth of the Atlantic overturning cell. The models show a large spread in the simulated AMOC maximum, the Atlantic ocean heat transport and the surface warming in the North Atlantic. Although a few models simulate a surface warming of ∼ 8–12 ∘ C in the North Atlantic, similar to the reconstruction from Pliocene Research, Interpretation and Synoptic Mapping (PRISM) version 4, most models appear to underestimate this warming. The large model spread and model–data discrepancies in the PlioMIP2 ensemble do not support the hypothesis that an intensification of the AMOC, together with an increase in northward ocean heat transport, is the dominant mechanism for the mid-Pliocene warm climate over the North Atlantic. |
format |
Text |
author |
Zhang, Zhongshi Li, Xiangyu Guo, Chuncheng Otterå, Odd Helge Nisancioglu, Kerim H. Tan, Ning Contoux, Camille Ramstein, Gilles Feng, Ran Otto-Bliesner, Bette L. Brady, Esther Chandan, Deepak Peltier, W. Richard Baatsen, Michiel L. J. Heydt, Anna S. Weiffenbach, Julia E. Stepanek, Christian Lohmann, Gerrit Zhang, Qiong Li, Qiang Chandler, Mark A. Sohl, Linda E. Haywood, Alan M. Hunter, Stephen J. Tindall, Julia C. Williams, Charles Lunt, Daniel J. Chan, Wing-Le Abe-Ouchi, Ayako |
spellingShingle |
Zhang, Zhongshi Li, Xiangyu Guo, Chuncheng Otterå, Odd Helge Nisancioglu, Kerim H. Tan, Ning Contoux, Camille Ramstein, Gilles Feng, Ran Otto-Bliesner, Bette L. Brady, Esther Chandan, Deepak Peltier, W. Richard Baatsen, Michiel L. J. Heydt, Anna S. Weiffenbach, Julia E. Stepanek, Christian Lohmann, Gerrit Zhang, Qiong Li, Qiang Chandler, Mark A. Sohl, Linda E. Haywood, Alan M. Hunter, Stephen J. Tindall, Julia C. Williams, Charles Lunt, Daniel J. Chan, Wing-Le Abe-Ouchi, Ayako Mid-Pliocene Atlantic Meridional Overturning Circulation simulated in PlioMIP2 |
author_facet |
Zhang, Zhongshi Li, Xiangyu Guo, Chuncheng Otterå, Odd Helge Nisancioglu, Kerim H. Tan, Ning Contoux, Camille Ramstein, Gilles Feng, Ran Otto-Bliesner, Bette L. Brady, Esther Chandan, Deepak Peltier, W. Richard Baatsen, Michiel L. J. Heydt, Anna S. Weiffenbach, Julia E. Stepanek, Christian Lohmann, Gerrit Zhang, Qiong Li, Qiang Chandler, Mark A. Sohl, Linda E. Haywood, Alan M. Hunter, Stephen J. Tindall, Julia C. Williams, Charles Lunt, Daniel J. Chan, Wing-Le Abe-Ouchi, Ayako |
author_sort |
Zhang, Zhongshi |
title |
Mid-Pliocene Atlantic Meridional Overturning Circulation simulated in PlioMIP2 |
title_short |
Mid-Pliocene Atlantic Meridional Overturning Circulation simulated in PlioMIP2 |
title_full |
Mid-Pliocene Atlantic Meridional Overturning Circulation simulated in PlioMIP2 |
title_fullStr |
Mid-Pliocene Atlantic Meridional Overturning Circulation simulated in PlioMIP2 |
title_full_unstemmed |
Mid-Pliocene Atlantic Meridional Overturning Circulation simulated in PlioMIP2 |
title_sort |
mid-pliocene atlantic meridional overturning circulation simulated in pliomip2 |
publishDate |
2021 |
url |
https://doi.org/10.5194/cp-17-529-2021 https://cp.copernicus.org/articles/17/529/2021/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-17-529-2021 https://cp.copernicus.org/articles/17/529/2021/ |
op_doi |
https://doi.org/10.5194/cp-17-529-2021 |
container_title |
Climate of the Past |
container_volume |
17 |
container_issue |
1 |
container_start_page |
529 |
op_container_end_page |
543 |
_version_ |
1766121228397969408 |