Impacts of Atlantic multidecadal variability on the tropical Pacific: a multi-model study

Abstract Atlantic multidecadal variability (AMV) has been linked to the observed slowdown of global warming over 1998–2012 through its impact on the tropical Pacific. Given the global importance of tropical Pacific variability, better understanding this Atlantic–Pacific teleconnection is key for imp...

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Autores principales:	Yohan Ruprich-Robert, Eduardo Moreno-Chamarro, Xavier Levine, Alessio Bellucci, Christophe Cassou, Frederic Castruccio, Paolo Davini, Rosie Eade, Guillaume Gastineau, Leon Hermanson, Dan Hodson, Katja Lohmann, Jorge Lopez-Parages, Paul-Arthur Monerie, Dario Nicolì, Said Qasmi, Christopher D. Roberts, Emilia Sanchez-Gomez, Gokhan Danabasoglu, Nick Dunstone, Marta Martin-Rey, Rym Msadek, Jon Robson, Doug Smith, Etienne Tourigny
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/f03fd77cb0db420aa59842c0c9dab08f
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spelling	oai:doaj.org-article:f03fd77cb0db420aa59842c0c9dab08f2021-12-02T15:56:39ZImpacts of Atlantic multidecadal variability on the tropical Pacific: a multi-model study10.1038/s41612-021-00188-52397-3722https://doaj.org/article/f03fd77cb0db420aa59842c0c9dab08f2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41612-021-00188-5https://doaj.org/toc/2397-3722Abstract Atlantic multidecadal variability (AMV) has been linked to the observed slowdown of global warming over 1998–2012 through its impact on the tropical Pacific. Given the global importance of tropical Pacific variability, better understanding this Atlantic–Pacific teleconnection is key for improving climate predictions, but the robustness and strength of this link are uncertain. Analyzing a multi-model set of sensitivity experiments, we find that models differ by a factor of 10 in simulating the amplitude of the Equatorial Pacific cooling response to observed AMV warming. The inter-model spread is mainly driven by different amounts of moist static energy injection from the tropical Atlantic surface into the upper troposphere. We reduce this inter-model uncertainty by analytically correcting models for their mean precipitation biases and we quantify that, following an observed 0.26 °C AMV warming, the equatorial Pacific cools by 0.11 °C with an inter-model standard deviation of 0.03 °C.Yohan Ruprich-RobertEduardo Moreno-ChamarroXavier LevineAlessio BellucciChristophe CassouFrederic CastruccioPaolo DaviniRosie EadeGuillaume GastineauLeon HermansonDan HodsonKatja LohmannJorge Lopez-ParagesPaul-Arthur MonerieDario NicolìSaid QasmiChristopher D. RobertsEmilia Sanchez-GomezGokhan DanabasogluNick DunstoneMarta Martin-ReyRym MsadekJon RobsonDoug SmithEtienne TourignyNature PortfolioarticleEnvironmental sciencesGE1-350Meteorology. ClimatologyQC851-999ENnpj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
spellingShingle	Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Yohan Ruprich-Robert Eduardo Moreno-Chamarro Xavier Levine Alessio Bellucci Christophe Cassou Frederic Castruccio Paolo Davini Rosie Eade Guillaume Gastineau Leon Hermanson Dan Hodson Katja Lohmann Jorge Lopez-Parages Paul-Arthur Monerie Dario Nicolì Said Qasmi Christopher D. Roberts Emilia Sanchez-Gomez Gokhan Danabasoglu Nick Dunstone Marta Martin-Rey Rym Msadek Jon Robson Doug Smith Etienne Tourigny Impacts of Atlantic multidecadal variability on the tropical Pacific: a multi-model study
description	Abstract Atlantic multidecadal variability (AMV) has been linked to the observed slowdown of global warming over 1998–2012 through its impact on the tropical Pacific. Given the global importance of tropical Pacific variability, better understanding this Atlantic–Pacific teleconnection is key for improving climate predictions, but the robustness and strength of this link are uncertain. Analyzing a multi-model set of sensitivity experiments, we find that models differ by a factor of 10 in simulating the amplitude of the Equatorial Pacific cooling response to observed AMV warming. The inter-model spread is mainly driven by different amounts of moist static energy injection from the tropical Atlantic surface into the upper troposphere. We reduce this inter-model uncertainty by analytically correcting models for their mean precipitation biases and we quantify that, following an observed 0.26 °C AMV warming, the equatorial Pacific cools by 0.11 °C with an inter-model standard deviation of 0.03 °C.
format	article
author	Yohan Ruprich-Robert Eduardo Moreno-Chamarro Xavier Levine Alessio Bellucci Christophe Cassou Frederic Castruccio Paolo Davini Rosie Eade Guillaume Gastineau Leon Hermanson Dan Hodson Katja Lohmann Jorge Lopez-Parages Paul-Arthur Monerie Dario Nicolì Said Qasmi Christopher D. Roberts Emilia Sanchez-Gomez Gokhan Danabasoglu Nick Dunstone Marta Martin-Rey Rym Msadek Jon Robson Doug Smith Etienne Tourigny
author_facet	Yohan Ruprich-Robert Eduardo Moreno-Chamarro Xavier Levine Alessio Bellucci Christophe Cassou Frederic Castruccio Paolo Davini Rosie Eade Guillaume Gastineau Leon Hermanson Dan Hodson Katja Lohmann Jorge Lopez-Parages Paul-Arthur Monerie Dario Nicolì Said Qasmi Christopher D. Roberts Emilia Sanchez-Gomez Gokhan Danabasoglu Nick Dunstone Marta Martin-Rey Rym Msadek Jon Robson Doug Smith Etienne Tourigny
author_sort	Yohan Ruprich-Robert
title	Impacts of Atlantic multidecadal variability on the tropical Pacific: a multi-model study
title_short	Impacts of Atlantic multidecadal variability on the tropical Pacific: a multi-model study
title_full	Impacts of Atlantic multidecadal variability on the tropical Pacific: a multi-model study
title_fullStr	Impacts of Atlantic multidecadal variability on the tropical Pacific: a multi-model study
title_full_unstemmed	Impacts of Atlantic multidecadal variability on the tropical Pacific: a multi-model study
title_sort	impacts of atlantic multidecadal variability on the tropical pacific: a multi-model study
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f03fd77cb0db420aa59842c0c9dab08f
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Impacts of Atlantic multidecadal variability on the tropical Pacific: a multi-model study

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