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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/192818
Ver los metadatos del registro completo
id |
CONICETDig_6db5a54c05d6dd124fcce45eed7b8163 |
---|---|
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 |
_version_ |
1842269241462489088 |
score |
13.13397 |