Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments

Climate model simulations that restore SSTs in the North Atlantic have been used to explore the climate impacts of Atlantic Multidecadal Variability (AMV). However, despite simulations and observations exhibiting similar North Atlantic SST anomalies, experiments with active SST-restoring in the Trop...

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Autores: O’Reilly, Christopher H., Patterson, Matthew, Robson, Jon, Monerie, Paul Arthur, Hodson, Daniel, Ruprich-Robert, Yohan|||0000-0002-4008-2026
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/385168
Acesso em linha:https://hdl.handle.net/2117/385168
https://dx.doi.org/10.1038/s41612-023-00335-0
Access Level:acceso abierto
Palavra-chave:Teleconnections (Climatology)
Ocean-atmosphere interaction.
Atmospheric dynamics
Attribution
Climate and Earth system modelling
Physical oceanography
Projection and prediction
Simulació per ordinador
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia
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spelling Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experimentsO’Reilly, Christopher H.Patterson, MatthewRobson, JonMonerie, Paul ArthurHodson, DanielRuprich-Robert, Yohan|||0000-0002-4008-2026Teleconnections (Climatology)Ocean-atmosphere interaction.Atmospheric dynamicsAttributionClimate and Earth system modellingPhysical oceanographyProjection and predictionSimulació per ordinadorÀrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologiaClimate model simulations that restore SSTs in the North Atlantic have been used to explore the climate impacts of Atlantic Multidecadal Variability (AMV). However, despite simulations and observations exhibiting similar North Atlantic SST anomalies, experiments with active SST-restoring in the Tropical North Atlantic exhibit strong positive surface heat-fluxes out of the ocean with warm SST anomalies, which is not replicated in other simulations or observations. The upward surface heat-fluxes that are systematically driven by the active SST-restoring in the Tropical North Atlantic are found to be crucial for generating a strong local precipitation response and the associated remote impact on the Pacific Walker circulation; these are both absent in other simulations. The results of this study strongly suggest that experiments employing SST-restoring (or prescribed SSTs) in the Tropical North Atlantic exaggerate the influence of the Atlantic on patterns of global climate anomalies and its role in recent multidecadal SST trends.COR was supported by a Royal Society University Research Fellowship. MP was funded by the EUCP project (Horizon 2020; Grant Agreement 776613). JR was funded by NERC via the ACSIS program (NE/N018001/1) and via the WISHBONE project (NE/T013516/1). PAM was funded by the EMERGENCE project under the Natural Environment Research Council (NERC Grant NE/S004890/1) The project that gave rise to these results included YRR and received the support of a fellowship from “la Caixa” Foundation (ID 100010434) and from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 847648 (fellowship code LCF/BQ/PR21/11840016).Peer ReviewedNature Research20232023-02-0120232023-03-17journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/385168https://dx.doi.org/10.1038/s41612-023-00335-0reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengEuropean Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 847648 Junior Leader la Caixa Postdoctoral Fellowship Programme: Shaping the new generation of leaders in researchopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3851682026-05-27T15:37:01Z
dc.title.none.fl_str_mv Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments
title Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments
spellingShingle Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments
O’Reilly, Christopher H.
Teleconnections (Climatology)
Ocean-atmosphere interaction.
Atmospheric dynamics
Attribution
Climate and Earth system modelling
Physical oceanography
Projection and prediction
Simulació per ordinador
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia
title_short Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments
title_full Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments
title_fullStr Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments
title_full_unstemmed Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments
title_sort Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments
dc.creator.none.fl_str_mv O’Reilly, Christopher H.
Patterson, Matthew
Robson, Jon
Monerie, Paul Arthur
Hodson, Daniel
Ruprich-Robert, Yohan|||0000-0002-4008-2026
author O’Reilly, Christopher H.
author_facet O’Reilly, Christopher H.
Patterson, Matthew
Robson, Jon
Monerie, Paul Arthur
Hodson, Daniel
Ruprich-Robert, Yohan|||0000-0002-4008-2026
author_role author
author2 Patterson, Matthew
Robson, Jon
Monerie, Paul Arthur
Hodson, Daniel
Ruprich-Robert, Yohan|||0000-0002-4008-2026
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Teleconnections (Climatology)
Ocean-atmosphere interaction.
Atmospheric dynamics
Attribution
Climate and Earth system modelling
Physical oceanography
Projection and prediction
Simulació per ordinador
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia
topic Teleconnections (Climatology)
Ocean-atmosphere interaction.
Atmospheric dynamics
Attribution
Climate and Earth system modelling
Physical oceanography
Projection and prediction
Simulació per ordinador
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia
description Climate model simulations that restore SSTs in the North Atlantic have been used to explore the climate impacts of Atlantic Multidecadal Variability (AMV). However, despite simulations and observations exhibiting similar North Atlantic SST anomalies, experiments with active SST-restoring in the Tropical North Atlantic exhibit strong positive surface heat-fluxes out of the ocean with warm SST anomalies, which is not replicated in other simulations or observations. The upward surface heat-fluxes that are systematically driven by the active SST-restoring in the Tropical North Atlantic are found to be crucial for generating a strong local precipitation response and the associated remote impact on the Pacific Walker circulation; these are both absent in other simulations. The results of this study strongly suggest that experiments employing SST-restoring (or prescribed SSTs) in the Tropical North Atlantic exaggerate the influence of the Atlantic on patterns of global climate anomalies and its role in recent multidecadal SST trends.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-02-01
2023
2023-03-17
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/385168
https://dx.doi.org/10.1038/s41612-023-00335-0
url https://hdl.handle.net/2117/385168
https://dx.doi.org/10.1038/s41612-023-00335-0
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 847648 Junior Leader la Caixa Postdoctoral Fellowship Programme: Shaping the new generation of leaders in research
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature Research
publisher.none.fl_str_mv Nature Research
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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