Austral spring stratospheric and tropospheric circulation interannual variability

Autores
Agosta Scarel, Eduardo Andres; Canziani, Pablo Osvaldo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The relationship between the October (spring) total ozone column (TOC) midlatitude zonal asymmetry over the Southern Hemisphere (SH) and the stratospheric quasi-stationary wave 1 (QSW1) interannual phase variability is analyzed. Once contributions to the TOC from known global predictors, estimated with a multiregressionmodel, are removed, the residual TOC interannual variability is observed to be dynamically coupled to the stratospheric QSW1 phase behavior. The stratospheric QSW1 interannual phase variability, when classified according to specifically designed indices, yields different circulation patterns in the troposphere and stratosphere. High (upper quartile) index values correspond to a westward rotation of the midlatitude ozone trough and the stratospheric QSW1 phase, while low (lower quartile) index values represent their eastwardrotated state. These values can be associated with statistically different tropospheric circulation patterns: a predominantly single poleward tropospheric jet structure for high index values and a predominantly double-jet structure for low index values. For the latter, there is a higher daily probability of double-jet occurrence in the troposphere and a stronger stratospheric jet. These jet structures and their daily behavior are supported by significant synoptic-scale activity anomalies over SH mid- to high latitudes as well as changes in tropospheric quasi-stationary waves 1-3. The wave activity flux (W flux) diagnosis shows the contribution of active quasistationary waves in the observed tropospheric anomalies associated with high and low index values. With low index values, the quasi-stationary waves lead to a self-sustaining state of the stratospheric-tropospheric coupled system.With high index values, the overall mid- to high latitude circulation is associated with wave energy propagation from the tropical central Pacific into higher latitudes. Thus, during the austral spring, there are interactions between the troposphere and stratosphere, leading to the locally well-defined upward and downward propagation of wave anomalies, that is, significant upper troposphere (UT)-lower stratosphere (LS) interactions can occur within a spring month itself.
Fil: Agosta Scarel, Eduardo Andres. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; Argentina
Fil: Canziani, Pablo Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; Argentina
Materia
CLIMATE VARIABILITY
INTERANNUAL VARIABILITY. OZONE
SOUTHERN HEMISPHERE
STATIONARY WAVES
STRATOSPHERE-TROPOSPHERE COUPLING
STRATOSPHERIC CIRCULATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/192818

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oai_identifier_str oai:ri.conicet.gov.ar:11336/192818
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Austral spring stratospheric and tropospheric circulation interannual variabilityAgosta Scarel, Eduardo AndresCanziani, Pablo OsvaldoCLIMATE VARIABILITYINTERANNUAL VARIABILITY. OZONESOUTHERN HEMISPHERESTATIONARY WAVESSTRATOSPHERE-TROPOSPHERE COUPLINGSTRATOSPHERIC CIRCULATIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The relationship between the October (spring) total ozone column (TOC) midlatitude zonal asymmetry over the Southern Hemisphere (SH) and the stratospheric quasi-stationary wave 1 (QSW1) interannual phase variability is analyzed. Once contributions to the TOC from known global predictors, estimated with a multiregressionmodel, are removed, the residual TOC interannual variability is observed to be dynamically coupled to the stratospheric QSW1 phase behavior. The stratospheric QSW1 interannual phase variability, when classified according to specifically designed indices, yields different circulation patterns in the troposphere and stratosphere. High (upper quartile) index values correspond to a westward rotation of the midlatitude ozone trough and the stratospheric QSW1 phase, while low (lower quartile) index values represent their eastwardrotated state. These values can be associated with statistically different tropospheric circulation patterns: a predominantly single poleward tropospheric jet structure for high index values and a predominantly double-jet structure for low index values. For the latter, there is a higher daily probability of double-jet occurrence in the troposphere and a stronger stratospheric jet. These jet structures and their daily behavior are supported by significant synoptic-scale activity anomalies over SH mid- to high latitudes as well as changes in tropospheric quasi-stationary waves 1-3. The wave activity flux (W flux) diagnosis shows the contribution of active quasistationary waves in the observed tropospheric anomalies associated with high and low index values. With low index values, the quasi-stationary waves lead to a self-sustaining state of the stratospheric-tropospheric coupled system.With high index values, the overall mid- to high latitude circulation is associated with wave energy propagation from the tropical central Pacific into higher latitudes. Thus, during the austral spring, there are interactions between the troposphere and stratosphere, leading to the locally well-defined upward and downward propagation of wave anomalies, that is, significant upper troposphere (UT)-lower stratosphere (LS) interactions can occur within a spring month itself.Fil: Agosta Scarel, Eduardo Andres. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; ArgentinaFil: Canziani, Pablo Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; ArgentinaAmer Meteorological Soc2011-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/192818Agosta Scarel, Eduardo Andres; Canziani, Pablo Osvaldo; Austral spring stratospheric and tropospheric circulation interannual variability; Amer Meteorological Soc; Journal Of Climate; 24; 11; 6-2011; 2629-26470894-8755CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.ametsoc.org/view/journals/clim/24/11/2010jcli3418.1.xmlinfo:eu-repo/semantics/altIdentifier/doi/10.1175/2010JCLI3418.1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:41Zoai:ri.conicet.gov.ar:11336/192818instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:53:41.413CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Austral spring stratospheric and tropospheric circulation interannual variability
title Austral spring stratospheric and tropospheric circulation interannual variability
spellingShingle Austral spring stratospheric and tropospheric circulation interannual variability
Agosta Scarel, Eduardo Andres
CLIMATE VARIABILITY
INTERANNUAL VARIABILITY. OZONE
SOUTHERN HEMISPHERE
STATIONARY WAVES
STRATOSPHERE-TROPOSPHERE COUPLING
STRATOSPHERIC CIRCULATION
title_short Austral spring stratospheric and tropospheric circulation interannual variability
title_full Austral spring stratospheric and tropospheric circulation interannual variability
title_fullStr Austral spring stratospheric and tropospheric circulation interannual variability
title_full_unstemmed Austral spring stratospheric and tropospheric circulation interannual variability
title_sort Austral spring stratospheric and tropospheric circulation interannual variability
dc.creator.none.fl_str_mv Agosta Scarel, Eduardo Andres
Canziani, Pablo Osvaldo
author Agosta Scarel, Eduardo Andres
author_facet Agosta Scarel, Eduardo Andres
Canziani, Pablo Osvaldo
author_role author
author2 Canziani, Pablo Osvaldo
author2_role author
dc.subject.none.fl_str_mv CLIMATE VARIABILITY
INTERANNUAL VARIABILITY. OZONE
SOUTHERN HEMISPHERE
STATIONARY WAVES
STRATOSPHERE-TROPOSPHERE COUPLING
STRATOSPHERIC CIRCULATION
topic CLIMATE VARIABILITY
INTERANNUAL VARIABILITY. OZONE
SOUTHERN HEMISPHERE
STATIONARY WAVES
STRATOSPHERE-TROPOSPHERE COUPLING
STRATOSPHERIC CIRCULATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The relationship between the October (spring) total ozone column (TOC) midlatitude zonal asymmetry over the Southern Hemisphere (SH) and the stratospheric quasi-stationary wave 1 (QSW1) interannual phase variability is analyzed. Once contributions to the TOC from known global predictors, estimated with a multiregressionmodel, are removed, the residual TOC interannual variability is observed to be dynamically coupled to the stratospheric QSW1 phase behavior. The stratospheric QSW1 interannual phase variability, when classified according to specifically designed indices, yields different circulation patterns in the troposphere and stratosphere. High (upper quartile) index values correspond to a westward rotation of the midlatitude ozone trough and the stratospheric QSW1 phase, while low (lower quartile) index values represent their eastwardrotated state. These values can be associated with statistically different tropospheric circulation patterns: a predominantly single poleward tropospheric jet structure for high index values and a predominantly double-jet structure for low index values. For the latter, there is a higher daily probability of double-jet occurrence in the troposphere and a stronger stratospheric jet. These jet structures and their daily behavior are supported by significant synoptic-scale activity anomalies over SH mid- to high latitudes as well as changes in tropospheric quasi-stationary waves 1-3. The wave activity flux (W flux) diagnosis shows the contribution of active quasistationary waves in the observed tropospheric anomalies associated with high and low index values. With low index values, the quasi-stationary waves lead to a self-sustaining state of the stratospheric-tropospheric coupled system.With high index values, the overall mid- to high latitude circulation is associated with wave energy propagation from the tropical central Pacific into higher latitudes. Thus, during the austral spring, there are interactions between the troposphere and stratosphere, leading to the locally well-defined upward and downward propagation of wave anomalies, that is, significant upper troposphere (UT)-lower stratosphere (LS) interactions can occur within a spring month itself.
Fil: Agosta Scarel, Eduardo Andres. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; Argentina
Fil: Canziani, Pablo Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; Argentina
description The relationship between the October (spring) total ozone column (TOC) midlatitude zonal asymmetry over the Southern Hemisphere (SH) and the stratospheric quasi-stationary wave 1 (QSW1) interannual phase variability is analyzed. Once contributions to the TOC from known global predictors, estimated with a multiregressionmodel, are removed, the residual TOC interannual variability is observed to be dynamically coupled to the stratospheric QSW1 phase behavior. The stratospheric QSW1 interannual phase variability, when classified according to specifically designed indices, yields different circulation patterns in the troposphere and stratosphere. High (upper quartile) index values correspond to a westward rotation of the midlatitude ozone trough and the stratospheric QSW1 phase, while low (lower quartile) index values represent their eastwardrotated state. These values can be associated with statistically different tropospheric circulation patterns: a predominantly single poleward tropospheric jet structure for high index values and a predominantly double-jet structure for low index values. For the latter, there is a higher daily probability of double-jet occurrence in the troposphere and a stronger stratospheric jet. These jet structures and their daily behavior are supported by significant synoptic-scale activity anomalies over SH mid- to high latitudes as well as changes in tropospheric quasi-stationary waves 1-3. The wave activity flux (W flux) diagnosis shows the contribution of active quasistationary waves in the observed tropospheric anomalies associated with high and low index values. With low index values, the quasi-stationary waves lead to a self-sustaining state of the stratospheric-tropospheric coupled system.With high index values, the overall mid- to high latitude circulation is associated with wave energy propagation from the tropical central Pacific into higher latitudes. Thus, during the austral spring, there are interactions between the troposphere and stratosphere, leading to the locally well-defined upward and downward propagation of wave anomalies, that is, significant upper troposphere (UT)-lower stratosphere (LS) interactions can occur within a spring month itself.
publishDate 2011
dc.date.none.fl_str_mv 2011-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/192818
Agosta Scarel, Eduardo Andres; Canziani, Pablo Osvaldo; Austral spring stratospheric and tropospheric circulation interannual variability; Amer Meteorological Soc; Journal Of Climate; 24; 11; 6-2011; 2629-2647
0894-8755
CONICET Digital
CONICET
url http://hdl.handle.net/11336/192818
identifier_str_mv Agosta Scarel, Eduardo Andres; Canziani, Pablo Osvaldo; Austral spring stratospheric and tropospheric circulation interannual variability; Amer Meteorological Soc; Journal Of Climate; 24; 11; 6-2011; 2629-2647
0894-8755
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.ametsoc.org/view/journals/clim/24/11/2010jcli3418.1.xml
info:eu-repo/semantics/altIdentifier/doi/10.1175/2010JCLI3418.1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Amer Meteorological Soc
publisher.none.fl_str_mv Amer Meteorological Soc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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