Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble
North Atlantic sea surface temperatures (SSTs) underwent pronounced multidecadal variability during the 20th and early 21st century. We examine the impacts of this Atlantic Multidecadal Variability (AMV), also referred to as the Atlantic Multidecadal Oscillation (AMO), on climate in an ensemble of f...
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ftunivreading:oai:centaur.reading.ac.uk:102326 2024-06-23T07:54:56+00:00 Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble Hodson, Daniel L. R. Bretonnière, Pierre-Antoine Cassou, Christophe Davini, Paolo Klingaman, Nicholas P. Lohmann, Katja Lopez-Parages, Jorge Martín-Rey, Marta Moine, Marie-Pierre Monerie, Paul-Arthur Putrasahan, Dian A. Roberts, Christopher D. Robson, Jon Ruprich-Robert, Yohan Sanchez-Gomez, Emilia Seddon, Jon Senan, Retish 2022-08 text https://centaur.reading.ac.uk/102326/ https://centaur.reading.ac.uk/102326/23/Hodson2022_Article_CoupledClimateResponseToAtlant%20%281%29.pdf https://centaur.reading.ac.uk/102326/1/AMV_Hodson_et_al_Revision2_FINAL.pdf https://centaur.reading.ac.uk/102326/2/Supplementary_Information.pdf https://centaur.reading.ac.uk/102326/35/s00382-022-06406-x.pdf en eng Springer https://centaur.reading.ac.uk/102326/23/Hodson2022_Article_CoupledClimateResponseToAtlant%20%281%29.pdf https://centaur.reading.ac.uk/102326/1/AMV_Hodson_et_al_Revision2_FINAL.pdf https://centaur.reading.ac.uk/102326/2/Supplementary_Information.pdf https://centaur.reading.ac.uk/102326/35/s00382-022-06406-x.pdf Hodson, D. L. R. <https://centaur.reading.ac.uk/view/creators/90000306.html> orcid:0000-0001-7159-6700 , Bretonnière, P.-A., Cassou, C., Davini, P., Klingaman, N. P. <https://centaur.reading.ac.uk/view/creators/90001096.html> orcid:0000-0002-2927-9303 , Lohmann, K., Lopez-Parages, J., Martín-Rey, M., Moine, M.-P., Monerie, P.-A. <https://centaur.reading.ac.uk/view/creators/90007727.html> orcid:0000-0002-5304-9559 , Putrasahan, D. A., Roberts, C. D., Robson, J. <https://centaur.reading.ac.uk/view/creators/90002607.html> orcid:0000-0002-3467-018X , Ruprich-Robert, Y., Sanchez-Gomez, E., Seddon, J. and Senan, R. (2022) Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble. Climate Dynamics, 59. pp. 805-836. ISSN 0930-7575 doi: https://doi.org/10.1007/s00382-022-06157-9 <https://doi.org/10.1007/s00382-022-06157-9> cc_by_4 Article PeerReviewed 2022 ftunivreading https://doi.org/10.1007/s00382-022-06157-9 2024-06-11T15:11:42Z North Atlantic sea surface temperatures (SSTs) underwent pronounced multidecadal variability during the 20th and early 21st century. We examine the impacts of this Atlantic Multidecadal Variability (AMV), also referred to as the Atlantic Multidecadal Oscillation (AMO), on climate in an ensemble of five coupled climate models at both low and high spatial resolution. We use a SST nudging scheme specified by the Coupled Model Intercomparision Project's Decadal Climate Prediction Project Component C (CMIP6 DCPP-C) to impose a persistent positive/negative phase of the AMV in the North Atlantic in coupled model simulations; SSTs are free to evolve outside this region. The large-scale seasonal mean response to the positive AMV involves widespread warming over Eurasia and the Americas, with a pattern of cooling over the Pacific Ocean similar to the Pacific Decadal Oscillation (PDO), together with a northward displacement of the inter-tropical convergence zone (ITCZ). The accompanying changes in global atmospheric circulation lead to widespread changes in precipitation. We use Analysis of Variance (ANOVA) to demonstrate that this large-scale climate response is accompanied by significant differences between models in how they respond to the common AMV forcing, particularly in the tropics. These differences may arise from variations in North Atlantic air-sea heat fluxes between models despite a common North Atlantic SST forcing pattern. We cannot detect a widespread effect of increased model horizontal resolution in this climate response, with the exception of the ITCZ, which shifts further northwards in the positive phase of the AMV in the higher resolution configurations. Article in Journal/Newspaper North Atlantic CentAUR: Central Archive at the University of Reading Pacific Climate Dynamics 59 3-4 805 836 |
institution |
Open Polar |
collection |
CentAUR: Central Archive at the University of Reading |
op_collection_id |
ftunivreading |
language |
English |
description |
North Atlantic sea surface temperatures (SSTs) underwent pronounced multidecadal variability during the 20th and early 21st century. We examine the impacts of this Atlantic Multidecadal Variability (AMV), also referred to as the Atlantic Multidecadal Oscillation (AMO), on climate in an ensemble of five coupled climate models at both low and high spatial resolution. We use a SST nudging scheme specified by the Coupled Model Intercomparision Project's Decadal Climate Prediction Project Component C (CMIP6 DCPP-C) to impose a persistent positive/negative phase of the AMV in the North Atlantic in coupled model simulations; SSTs are free to evolve outside this region. The large-scale seasonal mean response to the positive AMV involves widespread warming over Eurasia and the Americas, with a pattern of cooling over the Pacific Ocean similar to the Pacific Decadal Oscillation (PDO), together with a northward displacement of the inter-tropical convergence zone (ITCZ). The accompanying changes in global atmospheric circulation lead to widespread changes in precipitation. We use Analysis of Variance (ANOVA) to demonstrate that this large-scale climate response is accompanied by significant differences between models in how they respond to the common AMV forcing, particularly in the tropics. These differences may arise from variations in North Atlantic air-sea heat fluxes between models despite a common North Atlantic SST forcing pattern. We cannot detect a widespread effect of increased model horizontal resolution in this climate response, with the exception of the ITCZ, which shifts further northwards in the positive phase of the AMV in the higher resolution configurations. |
format |
Article in Journal/Newspaper |
author |
Hodson, Daniel L. R. Bretonnière, Pierre-Antoine Cassou, Christophe Davini, Paolo Klingaman, Nicholas P. Lohmann, Katja Lopez-Parages, Jorge Martín-Rey, Marta Moine, Marie-Pierre Monerie, Paul-Arthur Putrasahan, Dian A. Roberts, Christopher D. Robson, Jon Ruprich-Robert, Yohan Sanchez-Gomez, Emilia Seddon, Jon Senan, Retish |
spellingShingle |
Hodson, Daniel L. R. Bretonnière, Pierre-Antoine Cassou, Christophe Davini, Paolo Klingaman, Nicholas P. Lohmann, Katja Lopez-Parages, Jorge Martín-Rey, Marta Moine, Marie-Pierre Monerie, Paul-Arthur Putrasahan, Dian A. Roberts, Christopher D. Robson, Jon Ruprich-Robert, Yohan Sanchez-Gomez, Emilia Seddon, Jon Senan, Retish Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble |
author_facet |
Hodson, Daniel L. R. Bretonnière, Pierre-Antoine Cassou, Christophe Davini, Paolo Klingaman, Nicholas P. Lohmann, Katja Lopez-Parages, Jorge Martín-Rey, Marta Moine, Marie-Pierre Monerie, Paul-Arthur Putrasahan, Dian A. Roberts, Christopher D. Robson, Jon Ruprich-Robert, Yohan Sanchez-Gomez, Emilia Seddon, Jon Senan, Retish |
author_sort |
Hodson, Daniel L. R. |
title |
Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble |
title_short |
Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble |
title_full |
Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble |
title_fullStr |
Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble |
title_full_unstemmed |
Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble |
title_sort |
coupled climate response to atlantic multidecadal variability in a multi-model multi-resolution ensemble |
publisher |
Springer |
publishDate |
2022 |
url |
https://centaur.reading.ac.uk/102326/ https://centaur.reading.ac.uk/102326/23/Hodson2022_Article_CoupledClimateResponseToAtlant%20%281%29.pdf https://centaur.reading.ac.uk/102326/1/AMV_Hodson_et_al_Revision2_FINAL.pdf https://centaur.reading.ac.uk/102326/2/Supplementary_Information.pdf https://centaur.reading.ac.uk/102326/35/s00382-022-06406-x.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://centaur.reading.ac.uk/102326/23/Hodson2022_Article_CoupledClimateResponseToAtlant%20%281%29.pdf https://centaur.reading.ac.uk/102326/1/AMV_Hodson_et_al_Revision2_FINAL.pdf https://centaur.reading.ac.uk/102326/2/Supplementary_Information.pdf https://centaur.reading.ac.uk/102326/35/s00382-022-06406-x.pdf Hodson, D. L. R. <https://centaur.reading.ac.uk/view/creators/90000306.html> orcid:0000-0001-7159-6700 , Bretonnière, P.-A., Cassou, C., Davini, P., Klingaman, N. P. <https://centaur.reading.ac.uk/view/creators/90001096.html> orcid:0000-0002-2927-9303 , Lohmann, K., Lopez-Parages, J., Martín-Rey, M., Moine, M.-P., Monerie, P.-A. <https://centaur.reading.ac.uk/view/creators/90007727.html> orcid:0000-0002-5304-9559 , Putrasahan, D. A., Roberts, C. D., Robson, J. <https://centaur.reading.ac.uk/view/creators/90002607.html> orcid:0000-0002-3467-018X , Ruprich-Robert, Y., Sanchez-Gomez, E., Seddon, J. and Senan, R. (2022) Coupled climate response to Atlantic Multidecadal Variability in a multi-model multi-resolution ensemble. Climate Dynamics, 59. pp. 805-836. ISSN 0930-7575 doi: https://doi.org/10.1007/s00382-022-06157-9 <https://doi.org/10.1007/s00382-022-06157-9> |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.1007/s00382-022-06157-9 |
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Climate Dynamics |
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59 |
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3-4 |
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805 |
op_container_end_page |
836 |
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1802647283361120256 |