Sudden stratospheric warmings

Sudden stratospheric warmings (SSWs) are impressive fluid dynamical events in which large and rapid temperature increases in the winter polar stratosphere (∼10–50 km) are associated with a complete reversal of the climatological wintertime westerly winds. SSWs are caused by the breaking of planetary...

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Detalles Bibliográficos
Autor: Ayarzagüena Porras, Blanca
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/8095
Acceso en línea:https://hdl.handle.net/20.500.14352/8095
Access Level:acceso abierto
Palabra clave:52
Middle atmosphere
QBO
Stratosphere
Upper atmosphere
Weather forecasts
Física atmosférica
2501 Ciencias de la Atmósfera
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spelling Sudden stratospheric warmingsAyarzagüena Porras, Blanca52Middle atmosphereQBOStratosphereUpper atmosphereWeather forecastsFísica atmosférica2501 Ciencias de la AtmósferaSudden stratospheric warmings (SSWs) are impressive fluid dynamical events in which large and rapid temperature increases in the winter polar stratosphere (∼10–50 km) are associated with a complete reversal of the climatological wintertime westerly winds. SSWs are caused by the breaking of planetary-scale waves that propagate upwards from the troposphere. During an SSW, the polar vortex breaks down, accompanied by rapid descent and warming of air in polar latitudes, mirrored by ascent and cooling above the warming. The rapid warming and descent of the polar air column affect tropospheric weather, shifting jet streams, storm tracks, and the Northern Annular Mode, making cold air outbreaks over North America and Eurasia more likely. SSWs affect the atmosphere above the stratosphere, producing widespread effects on atmospheric chemistry, temperatures, winds, neutral (nonionized) particles and electron densities, and electric fields. These effects span both hemispheres. Given their crucial role in the whole atmosphere, SSWs are also seen as a key process to analyze in climate change studies and subseasonal to seasonal prediction. This work reviews the current knowledge on the most important aspects of SSWs, from the historical background to dynamical processes, modeling, chemistry, and impact on other atmospheric layers.American Geophysical UnionUniversidad Complutense de Madrid20212021-03-0120212021-03-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/8095reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/80952026-06-02T12:44:21Z
dc.title.none.fl_str_mv Sudden stratospheric warmings
title Sudden stratospheric warmings
spellingShingle Sudden stratospheric warmings
Ayarzagüena Porras, Blanca
52
Middle atmosphere
QBO
Stratosphere
Upper atmosphere
Weather forecasts
Física atmosférica
2501 Ciencias de la Atmósfera
title_short Sudden stratospheric warmings
title_full Sudden stratospheric warmings
title_fullStr Sudden stratospheric warmings
title_full_unstemmed Sudden stratospheric warmings
title_sort Sudden stratospheric warmings
dc.creator.none.fl_str_mv Ayarzagüena Porras, Blanca
author Ayarzagüena Porras, Blanca
author_facet Ayarzagüena Porras, Blanca
author_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 52
Middle atmosphere
QBO
Stratosphere
Upper atmosphere
Weather forecasts
Física atmosférica
2501 Ciencias de la Atmósfera
topic 52
Middle atmosphere
QBO
Stratosphere
Upper atmosphere
Weather forecasts
Física atmosférica
2501 Ciencias de la Atmósfera
description Sudden stratospheric warmings (SSWs) are impressive fluid dynamical events in which large and rapid temperature increases in the winter polar stratosphere (∼10–50 km) are associated with a complete reversal of the climatological wintertime westerly winds. SSWs are caused by the breaking of planetary-scale waves that propagate upwards from the troposphere. During an SSW, the polar vortex breaks down, accompanied by rapid descent and warming of air in polar latitudes, mirrored by ascent and cooling above the warming. The rapid warming and descent of the polar air column affect tropospheric weather, shifting jet streams, storm tracks, and the Northern Annular Mode, making cold air outbreaks over North America and Eurasia more likely. SSWs affect the atmosphere above the stratosphere, producing widespread effects on atmospheric chemistry, temperatures, winds, neutral (nonionized) particles and electron densities, and electric fields. These effects span both hemispheres. Given their crucial role in the whole atmosphere, SSWs are also seen as a key process to analyze in climate change studies and subseasonal to seasonal prediction. This work reviews the current knowledge on the most important aspects of SSWs, from the historical background to dynamical processes, modeling, chemistry, and impact on other atmospheric layers.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-03-01
2021
2021-03-01
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/20.500.14352/8095
url https://hdl.handle.net/20.500.14352/8095
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
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
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
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 15,300719

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