Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactions

The polar winter stratosphere is dominated by strong thermally-driven westerly winds (Andrews et al. 1987). Every two years on average (Charlton and Polvani 2007), this polar vortex is disrupted by a Sudden Stratospheric Warming (SSW), whereby the polar stratosphere warms rapidly (McInturff 1978). S...

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Detalles Bibliográficos
Autor: Palmeiro Núñez, Froila María
Tipo de recurso: tesis doctoral
Fecha de publicación:2018
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/16496
Acceso en línea:https://hdl.handle.net/20.500.14352/16496
Access Level:acceso abierto
Palabra clave:551.513(043.2)
Atmospheric Circulation
Brewer-Dobson Circulation
Sudden Stratospheric Warming
Polar winter stratosphere
Dinámica atmosférica
Circulación de Brewer-Dobson
Calentamiento súbito estratosférico
Estratosfera polar
Meteorología (Física)
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repository_id_str
spelling Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactionsCalentamientos Súbitos Estratosféricos y la Circulación de Brewer-Dobson: diagnósticos e interaccionesPalmeiro Núñez, Froila María551.513(043.2)Atmospheric CirculationBrewer-Dobson CirculationSudden Stratospheric WarmingPolar winter stratosphereDinámica atmosféricaCirculación de Brewer-DobsonCalentamiento súbito estratosféricoEstratosfera polarMeteorología (Física)The polar winter stratosphere is dominated by strong thermally-driven westerly winds (Andrews et al. 1987). Every two years on average (Charlton and Polvani 2007), this polar vortex is disrupted by a Sudden Stratospheric Warming (SSW), whereby the polar stratosphere warms rapidly (McInturff 1978). SSWs are related with enhanced planetary wave (PW) activity reaching the polar stratosphere and depositing momentum to the zonal mean flow (Matsuno 1971). Also wave-driven, the Brewer-Dobson Circulation (BDC) is responsible for the equator-to-pole mass transport (e.g., Andrews et al. 1987), specially its deep branch, in the middle and upper stratosphere (Plumb 2002). SSWs and BDC are the most illustrative examples of the polar stratospheric variability. However, there are still open questions regarding their underlying processes, mutual interactions and the expected trends under climate change scenarios. Some of them are explored in this thesis. Objectives: 1. To assess the discrepancies in SSW frequencies and signatures across different SSW definitions. 2. To understand how new model developments, and in particular the Turbulent Mountain Stress (TMS) parameterization influences SSW occurrence. 3. To explore the relationship between SSWs and the polar downwelling of the deep branch of the BDC. 4. To investigate the driving processes of the BDC and its future trends under climate change scenarios...Universidad Complutense de MadridBarriopedro Cepero, DavidCalvo Fernández, NataliaUniversidad Complutense de Madrid20182018-10-3120182018-10-31doctoral thesishttp://purl.org/coar/resource_type/c_db06info:eu-repo/semantics/doctoralThesisapplication/pdfhttps://hdl.handle.net/20.500.14352/16496reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/164962026-06-02T12:44:21Z
dc.title.none.fl_str_mv Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactions
Calentamientos Súbitos Estratosféricos y la Circulación de Brewer-Dobson: diagnósticos e interacciones
title Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactions
spellingShingle Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactions
Palmeiro Núñez, Froila María
551.513(043.2)
Atmospheric Circulation
Brewer-Dobson Circulation
Sudden Stratospheric Warming
Polar winter stratosphere
Dinámica atmosférica
Circulación de Brewer-Dobson
Calentamiento súbito estratosférico
Estratosfera polar
Meteorología (Física)
title_short Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactions
title_full Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactions
title_fullStr Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactions
title_full_unstemmed Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactions
title_sort Sudden Stratospheric Warmings and the Brewer-Dobson Circulation: diagnostics and interactions
dc.creator.none.fl_str_mv Palmeiro Núñez, Froila María
author Palmeiro Núñez, Froila María
author_facet Palmeiro Núñez, Froila María
author_role author
dc.contributor.none.fl_str_mv Barriopedro Cepero, David
Calvo Fernández, Natalia
Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 551.513(043.2)
Atmospheric Circulation
Brewer-Dobson Circulation
Sudden Stratospheric Warming
Polar winter stratosphere
Dinámica atmosférica
Circulación de Brewer-Dobson
Calentamiento súbito estratosférico
Estratosfera polar
Meteorología (Física)
topic 551.513(043.2)
Atmospheric Circulation
Brewer-Dobson Circulation
Sudden Stratospheric Warming
Polar winter stratosphere
Dinámica atmosférica
Circulación de Brewer-Dobson
Calentamiento súbito estratosférico
Estratosfera polar
Meteorología (Física)
description The polar winter stratosphere is dominated by strong thermally-driven westerly winds (Andrews et al. 1987). Every two years on average (Charlton and Polvani 2007), this polar vortex is disrupted by a Sudden Stratospheric Warming (SSW), whereby the polar stratosphere warms rapidly (McInturff 1978). SSWs are related with enhanced planetary wave (PW) activity reaching the polar stratosphere and depositing momentum to the zonal mean flow (Matsuno 1971). Also wave-driven, the Brewer-Dobson Circulation (BDC) is responsible for the equator-to-pole mass transport (e.g., Andrews et al. 1987), specially its deep branch, in the middle and upper stratosphere (Plumb 2002). SSWs and BDC are the most illustrative examples of the polar stratospheric variability. However, there are still open questions regarding their underlying processes, mutual interactions and the expected trends under climate change scenarios. Some of them are explored in this thesis. Objectives: 1. To assess the discrepancies in SSW frequencies and signatures across different SSW definitions. 2. To understand how new model developments, and in particular the Turbulent Mountain Stress (TMS) parameterization influences SSW occurrence. 3. To explore the relationship between SSWs and the polar downwelling of the deep branch of the BDC. 4. To investigate the driving processes of the BDC and its future trends under climate change scenarios...
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-10-31
2018
2018-10-31
dc.type.none.fl_str_mv doctoral thesis
http://purl.org/coar/resource_type/c_db06
dc.type.openaire.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/16496
url https://hdl.handle.net/20.500.14352/16496
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 Universidad Complutense de Madrid
publisher.none.fl_str_mv Universidad Complutense de Madrid
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 15,300724

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