Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmings

Major sudden stratospheric warmings (SSWs) are the most important phenomena of the wintertime boreal stratospheric variability.During SSWs, the polar temperature increases abruptly, and easterlies prevail in the stratosphere. Their effects extend farther from the polar stratosphere, affecting near-s...

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Detalhes bibliográficos
Autores: Ayargüena Porras, Blanca, Manzini, Elisa, Calvo Fernández, Natalia, Matei, Daniela
Formato: artículo
Fecha de publicación:2021
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/4419
Acesso em linha:https://hdl.handle.net/20.500.14352/4419
Access Level:acceso abierto
Palavra-chave:52
Sea-ice loss
Atmospheric response
Arctic amplification
CMIP5 simulations
Atlantic
Frequency
Climatology
Oscillation
Modulaton
Mechanisms
Física atmosférica
2501 Ciencias de la Atmósfera
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oai_identifier_str oai:docta.ucm.es:20.500.14352/4419
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spelling Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmingsAyargüena Porras, BlancaManzini, ElisaCalvo Fernández, NataliaMatei, Daniela52Sea-ice lossAtmospheric responseArctic amplificationCMIP5 simulationsAtlanticFrequencyClimatologyOscillationModulatonMechanismsFísica atmosférica2501 Ciencias de la AtmósferaMajor sudden stratospheric warmings (SSWs) are the most important phenomena of the wintertime boreal stratospheric variability.During SSWs, the polar temperature increases abruptly, and easterlies prevail in the stratosphere. Their effects extend farther from the polar stratosphere, affecting near-surface circulation. According to observations, SSWs are not equally distributed in time, with decades experiencing very few events, while others experiencing SSWs almost every winter. Some sources of this SSW multidecadal variability can be traced back to sea surface temperature changes.Here, we investigate the effects of Pacific decadal variability (PDV) and Atlanticmultidecadal variability (AMV) on SSWs. We use for the first time a large ensemble of historical experiments to examine the modulation of the frequency, tropospheric precursors, and impact of SSWs by the PDV and AMV.We find a strong impact of the PDV on the occurrence of SSWs, with a higher SSW frequency for the positive phase of the PDV. This PDV influence ismediated by constructive interference of PDV anomalies with tropospheric stationary waves. The main effect of AMV is, instead, a modulation of the tropospheric response to SSWs, a finding that can be useful for predicting the tropospheric fingerprint of SSWs.WileyUniversidad Complutense de Madrid20212021-07-1120212021-07-11journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/4419reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttps://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/44192026-06-02T12:44:21Z
dc.title.none.fl_str_mv Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmings
title Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmings
spellingShingle Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmings
Ayargüena Porras, Blanca
52
Sea-ice loss
Atmospheric response
Arctic amplification
CMIP5 simulations
Atlantic
Frequency
Climatology
Oscillation
Modulaton
Mechanisms
Física atmosférica
2501 Ciencias de la Atmósfera
title_short Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmings
title_full Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmings
title_fullStr Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmings
title_full_unstemmed Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmings
title_sort Interaction between decadal-to-multidecadal oceanic variability and sudden stratospheric warmings
dc.creator.none.fl_str_mv Ayargüena Porras, Blanca
Manzini, Elisa
Calvo Fernández, Natalia
Matei, Daniela
author Ayargüena Porras, Blanca
author_facet Ayargüena Porras, Blanca
Manzini, Elisa
Calvo Fernández, Natalia
Matei, Daniela
author_role author
author2 Manzini, Elisa
Calvo Fernández, Natalia
Matei, Daniela
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 52
Sea-ice loss
Atmospheric response
Arctic amplification
CMIP5 simulations
Atlantic
Frequency
Climatology
Oscillation
Modulaton
Mechanisms
Física atmosférica
2501 Ciencias de la Atmósfera
topic 52
Sea-ice loss
Atmospheric response
Arctic amplification
CMIP5 simulations
Atlantic
Frequency
Climatology
Oscillation
Modulaton
Mechanisms
Física atmosférica
2501 Ciencias de la Atmósfera
description Major sudden stratospheric warmings (SSWs) are the most important phenomena of the wintertime boreal stratospheric variability.During SSWs, the polar temperature increases abruptly, and easterlies prevail in the stratosphere. Their effects extend farther from the polar stratosphere, affecting near-surface circulation. According to observations, SSWs are not equally distributed in time, with decades experiencing very few events, while others experiencing SSWs almost every winter. Some sources of this SSW multidecadal variability can be traced back to sea surface temperature changes.Here, we investigate the effects of Pacific decadal variability (PDV) and Atlanticmultidecadal variability (AMV) on SSWs. We use for the first time a large ensemble of historical experiments to examine the modulation of the frequency, tropospheric precursors, and impact of SSWs by the PDV and AMV.We find a strong impact of the PDV on the occurrence of SSWs, with a higher SSW frequency for the positive phase of the PDV. This PDV influence ismediated by constructive interference of PDV anomalies with tropospheric stationary waves. The main effect of AMV is, instead, a modulation of the tropospheric response to SSWs, a finding that can be useful for predicting the tropospheric fingerprint of SSWs.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-07-11
2021
2021-07-11
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/4419
url https://hdl.handle.net/20.500.14352/4419
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
https://creativecommons.org/licenses/by-nc-nd/3.0/es/
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
Atribución-NoComercial-SinDerivadas 3.0 España
https://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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