Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/10605
Analysis of tropopause variability in observations and in an idealized model
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dc.contributor.advisorZurita Gotor, Pabloes_ES
dc.contributor.authorBarroso Pellico, Jesús Ángeles_ES
dc.date.accessioned2019-06-20T07:20:40Z-
dc.date.available2019-06-20T07:20:40Z-
dc.date.issued2017-
dc.identifier.urihttp://hdl.handle.net/20.500.11765/10605-
dc.descriptionTesis doctoral presentada en la Universidad Complutense de Madrid. Facultad de Ciencias Físicas, Departamento de Física de la Tierra, Astronomía y Astrofísica I (Geofísica y Meteorología).es_ES
dc.description.abstractThe focus of this thesis is the study of the extratropical tropopause. The tropopause is a distinctive feature of the vertical structure of the atmosphere, separating two regions, troposphere and stratosphere, with very different dynamical and chemical characteristics. The abrupt change in air properties found when moving from one layer to another serves as the basis for a wide variety of definitions. The first and most widely used definition is the thermal tropopause, based on the discontinuity in the lapse-rate. The dynamical tropopause is based on the discontinuity in the isentropic potential vorticity. Chemical definitions are also possible, based on the discontinuity in the concentration of tracer gases above and below the tropopause. The greatest variability in tropopause height is found in midlatitudes in synoptic scales, associated with the potential vorticity anomalies caused by the eddies at levels close to the tropopause. Seasonal variability, of lesser amplitude, has the form of a single wave in midlatitudes of both hemispheres and in the southern polar latitudes –where the cycle is inverted with respect to midlatitudes, while some regions of the Arctic exhibit a double-wave seasonal cycle. Previous studies attributed this interhemispheric asymmetry to the different strength of the residual circulation in both hemispheres, due to the different land-sea distributions. The tropopause has been traditionally explained as the transition from a stratospheric temperature profile in radiative equilibrium to a dynamically adjusted profile in the troposphere. Radiative-convective models seem to work well for the tropical regions, while in the extratropics it is less clear which dynamical mechanism adjusts the troposphere. Several possibilities, such as dry and moist baroclinic equilibration, have been proposed.es_ES
dc.language.isoenges_ES
dc.publisherUniversidad Complutense de Madrides_ES
dc.rightsLicencia CC: Reconocimiento–NoComercial–SinObraDerivada CC BY-NC-NDes_ES
dc.subjectTropopausees_ES
dc.subjectTropospherees_ES
dc.subjectDinámica atmosféricaes_ES
dc.subjectTropopausaes_ES
dc.subjectTroposferaes_ES
dc.subjectAtmospheric dynamices_ES
dc.titleAnalysis of tropopause variability in observations and in an idealized modeles_ES
dc.title.alternativeAnálisis de la variabilidad de la tropopausa en observaciones y en un modelo idealizadoes_ES
dc.typeinfo:eu-repo/semantics/doctoralThesises_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
Appears in Collections:Tesis 2010-2017


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