The complex behavior of El Niño winter 2015–2016

This paper examines the outstanding characteristics of the strong 2015–2016 El Niño (EN) winter and its impact over the European region through the stratosphere. Despite being classified as a strong eastern Pacific (EP) EN event, our analysis reveals an anomalous behavior, with some signatures that...

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Detalles Bibliográficos
Autores: Palmeiro, Froila M., Iza, M., Barriopedro, David, Calvo, N., García Herrera, Ricardo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/185341
Acceso en línea:http://hdl.handle.net/10261/185341
Access Level:acceso abierto
Palabra clave:Stratosphere
ENSO
SSW
Coupling
Studycase
SST
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repository_id_str
spelling The complex behavior of El Niño winter 2015–2016Palmeiro, Froila M.Iza, M.Barriopedro, DavidCalvo, N.García Herrera, RicardoStratosphereENSOSSWCouplingStudycaseSSTThis paper examines the outstanding characteristics of the strong 2015–2016 El Niño (EN) winter and its impact over the European region through the stratosphere. Despite being classified as a strong eastern Pacific (EP) EN event, our analysis reveals an anomalous behavior, with some signatures that are more typical of central Pacific (CP) EN events instead. They include (i) a record‐breaking value of the CP index, (ii) a stronger polar vortex in early and midwinter, due to reduced upward wave activity and a weakened Aleutian low, and (iii) the occurrence of one of the earliest stratospheric final warmings (SFWs) on record, which are more prone to occur during CP‐EN. Following the SFW, a stratospheric influence on the Euro‐Atlantic sector is reported in spring, with persistent Greenland blocking resulting in extreme precipitation over some southern European regions. Results highlight the importance of considering early SFWs as mediators of El Niño teleconnections.This work wassupported by the Spanish Ministry ofEconomy and Competitivenessthrough the PALEOSTRAT (CGL2015-69699-R) project and the EuropeanProject 603557-STRATOCLIM underprogram FP7-ENV.2013.6.1-2. F.M.Palmeiro was funded by grantBES-2013-063906.Peer reviewedAmerican Geophysical UnionMinisterio de Economía y Competitividad (España)European CommissionPalmeiro, Froila M. [0000-0002-4120-6174]Iza, M. [0000-0002-6162-5501]Barriopedro, David [0000-0001-6476-944X]García Herrera, Ricardo [0000-0002-3845-7458]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/185341reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2015-69699-Rinfo:eu-repo/grantAgreement/EC/FP7/603557https://doi.org/10.1002/2017GL072920Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1853412026-05-22T06:33:51Z
dc.title.none.fl_str_mv The complex behavior of El Niño winter 2015–2016
title The complex behavior of El Niño winter 2015–2016
spellingShingle The complex behavior of El Niño winter 2015–2016
Palmeiro, Froila M.
Stratosphere
ENSO
SSW
Coupling
Studycase
SST
title_short The complex behavior of El Niño winter 2015–2016
title_full The complex behavior of El Niño winter 2015–2016
title_fullStr The complex behavior of El Niño winter 2015–2016
title_full_unstemmed The complex behavior of El Niño winter 2015–2016
title_sort The complex behavior of El Niño winter 2015–2016
dc.creator.none.fl_str_mv Palmeiro, Froila M.
Iza, M.
Barriopedro, David
Calvo, N.
García Herrera, Ricardo
author Palmeiro, Froila M.
author_facet Palmeiro, Froila M.
Iza, M.
Barriopedro, David
Calvo, N.
García Herrera, Ricardo
author_role author
author2 Iza, M.
Barriopedro, David
Calvo, N.
García Herrera, Ricardo
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
European Commission
Palmeiro, Froila M. [0000-0002-4120-6174]
Iza, M. [0000-0002-6162-5501]
Barriopedro, David [0000-0001-6476-944X]
García Herrera, Ricardo [0000-0002-3845-7458]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Stratosphere
ENSO
SSW
Coupling
Studycase
SST
topic Stratosphere
ENSO
SSW
Coupling
Studycase
SST
description This paper examines the outstanding characteristics of the strong 2015–2016 El Niño (EN) winter and its impact over the European region through the stratosphere. Despite being classified as a strong eastern Pacific (EP) EN event, our analysis reveals an anomalous behavior, with some signatures that are more typical of central Pacific (CP) EN events instead. They include (i) a record‐breaking value of the CP index, (ii) a stronger polar vortex in early and midwinter, due to reduced upward wave activity and a weakened Aleutian low, and (iii) the occurrence of one of the earliest stratospheric final warmings (SFWs) on record, which are more prone to occur during CP‐EN. Following the SFW, a stratospheric influence on the Euro‐Atlantic sector is reported in spring, with persistent Greenland blocking resulting in extreme precipitation over some southern European regions. Results highlight the importance of considering early SFWs as mediators of El Niño teleconnections.
publishDate 2017
dc.date.none.fl_str_mv 2017
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/185341
url http://hdl.handle.net/10261/185341
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2015-69699-R
info:eu-repo/grantAgreement/EC/FP7/603557
https://doi.org/10.1002/2017GL072920
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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