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Future climate change shaped by inter-model differences in Atlantic meridional overturning circulation response
In climate model simulations of future climate change, the Atlantic Meridional Overturning Circulation (AMOC) is projected to decline. However, the impacts of this decline, relative to other changes, remain to be identified. Here we address this problem by analyzing 30 idealized abrupt-4xCO(2) clima...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8209213/ https://www.ncbi.nlm.nih.gov/pubmed/34135324 http://dx.doi.org/10.1038/s41467-021-24015-w |
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author | Bellomo, Katinka Angeloni, Michela Corti, Susanna von Hardenberg, Jost |
author_facet | Bellomo, Katinka Angeloni, Michela Corti, Susanna von Hardenberg, Jost |
author_sort | Bellomo, Katinka |
collection | PubMed |
description | In climate model simulations of future climate change, the Atlantic Meridional Overturning Circulation (AMOC) is projected to decline. However, the impacts of this decline, relative to other changes, remain to be identified. Here we address this problem by analyzing 30 idealized abrupt-4xCO(2) climate model simulations. We find that in models with larger AMOC decline, there is a minimum warming in the North Atlantic, a southward displacement of the Inter-tropical Convergence Zone, and a poleward shift of the mid-latitude jet. The changes in the models with smaller AMOC decline are drastically different: there is a relatively larger warming in the North Atlantic, the precipitation response exhibits a wet-get-wetter, dry-get-drier pattern, and there are smaller displacements of the mid-latitude jet. Our study indicates that the AMOC is a major source of inter-model uncertainty, and continued observational efforts are needed to constrain the AMOC response in future climate change. |
format | Online Article Text |
id | pubmed-8209213 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-82092132021-07-01 Future climate change shaped by inter-model differences in Atlantic meridional overturning circulation response Bellomo, Katinka Angeloni, Michela Corti, Susanna von Hardenberg, Jost Nat Commun Article In climate model simulations of future climate change, the Atlantic Meridional Overturning Circulation (AMOC) is projected to decline. However, the impacts of this decline, relative to other changes, remain to be identified. Here we address this problem by analyzing 30 idealized abrupt-4xCO(2) climate model simulations. We find that in models with larger AMOC decline, there is a minimum warming in the North Atlantic, a southward displacement of the Inter-tropical Convergence Zone, and a poleward shift of the mid-latitude jet. The changes in the models with smaller AMOC decline are drastically different: there is a relatively larger warming in the North Atlantic, the precipitation response exhibits a wet-get-wetter, dry-get-drier pattern, and there are smaller displacements of the mid-latitude jet. Our study indicates that the AMOC is a major source of inter-model uncertainty, and continued observational efforts are needed to constrain the AMOC response in future climate change. Nature Publishing Group UK 2021-06-16 /pmc/articles/PMC8209213/ /pubmed/34135324 http://dx.doi.org/10.1038/s41467-021-24015-w Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Bellomo, Katinka Angeloni, Michela Corti, Susanna von Hardenberg, Jost Future climate change shaped by inter-model differences in Atlantic meridional overturning circulation response |
title | Future climate change shaped by inter-model differences in Atlantic meridional overturning circulation response |
title_full | Future climate change shaped by inter-model differences in Atlantic meridional overturning circulation response |
title_fullStr | Future climate change shaped by inter-model differences in Atlantic meridional overturning circulation response |
title_full_unstemmed | Future climate change shaped by inter-model differences in Atlantic meridional overturning circulation response |
title_short | Future climate change shaped by inter-model differences in Atlantic meridional overturning circulation response |
title_sort | future climate change shaped by inter-model differences in atlantic meridional overturning circulation response |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8209213/ https://www.ncbi.nlm.nih.gov/pubmed/34135324 http://dx.doi.org/10.1038/s41467-021-24015-w |
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