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dc.contributor.authorPérez Zanón, Núria
dc.contributor.authorCasas Castillo, M. del Carmen
dc.contributor.authorPeña, Juan Carlos
dc.contributor.authorAran, Montserrat
dc.contributor.authorRodríguez Solá, Raúl
dc.contributor.authorRedaño Xipell, Angel
dc.contributor.authorSolé, J. Germán
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.coverage.spatialeast=0.495192999999972; north=40.82083; name=43520 Observatori de l'Ebre, Tarragona, Espanya
dc.identifier.citationPérez, N., M. Carmen Casas-Castillo, Peña, J., Aran, M., Rodriguez, R., Redaño, A., Solé, J. G. (2018) Analysis of synoptic patterns in relationship with severe rainfall events in the Ebre Observatory (Catalonia). "Acta geophysica", vol. 66, num. 3, p. 405-414.
dc.description.abstractThe study has obtained a classification of the synoptic patterns associated with a selection of extreme rain episodes registered in the Ebre Observatory between 1905 and 2003, showing a return period of not less than 10 years for any duration from 5 min to 24 h. These episodes had been previously classified in four rainfall intensity groups attending to their meteorological time scale. The synoptic patterns related to every group have been obtained applying a multivariable analysis to three atmospheric levels: sea-level pressure, temperature, and geopotential at 500 hPa. Usually, the synoptic patterns associated with intense rain in southern Catalonia are featured by low-pressure systems advecting warm and wet air from the Mediterranean Sea at the low levels of the troposphere. The configuration in the middle levels of the troposphere is dominated by negative anomalies of geopotential, indicating the presence of a low or a cold front, and temperature anomalies, promoting the destabilization of the atmosphere. These configurations promote the occurrence of severe convective events due to the difference of temperature between the low and medium levels of troposphere and the contribution of humidity in the lowest levels of the atmosphere.
dc.subjectÀrees temàtiques de la UPC::Física::Impacte ambiental
dc.subjectÀrees temàtiques de la UPC::Desenvolupament humà i sostenible
dc.subject.lcshRain and rainfall
dc.subject.otherSynoptic patterns
dc.subject.otherSevere rainfall
dc.subject.otherSouthern Catalonia
dc.subject.otherMeteorological temporal scales
dc.subject.otherIntensity weighted index
dc.subject.otherMultivariate analysis
dc.titleAnalysis of synoptic patterns in relationship with severe rainfall events in the Ebre Observatory (Catalonia)
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorPérez, N.; Casas-Castillo, M. Carmen; Peña, J.; Aran, M.; Rodriguez, R.; Redaño, A.; Solé, J. Germán
local.citation.publicationNameActa geophysica

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