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dc.contributor.author Junquas, C.
dc.contributor.author Vera, Carolina Susana
dc.contributor.author Li, L.
dc.contributor.author Le Treut, H.
dc.date.available 2017-05-31T21:35:40Z
dc.date.issued 2012-05
dc.identifier.citation Junquas, C.; Vera, Carolina Susana; Li, L.; Le Treut, H.; Summer precipitation variability over Southeastern South America in a global warming scenario; Springer; Climate Dynamics; 38; 9; 5-2012; 1867-1883
dc.identifier.issn 0930-7575
dc.identifier.uri http://hdl.handle.net/11336/17229
dc.description.abstract December–January–February (DJF) rainfall variability in southeastern South America (SESA) is studied in 18 coupled general circulation models from the WCRP/CMIP3 dataset, for present climate and the SRESA1B climate change scenario. The analysis is made in terms of properties of the first leading pattern of rainfall variability in the region, characterized by a dipole-like structure with centers of action in the SESA and South Atlantic Convergence Zone (SACZ) regions. The study was performed to address two issues: how rainfall variability in SESA would change in a future climate and how much of that change explains the projected increasing trends in the summer mean rainfall in SESA identified in previous works. Positive (negative) dipole events were identified as those DJF seasons with above (below) normal rainfall in SESA and below (above) normal rainfall in the SACZ region. Results obtained from the multi-model ensemble confirm that future rainfall variability in SESA has a strong projection on the changes of seasonal dipole pattern activity, associated with an increase of the frequency of the positive phase. In addition, the frequency increase of positive dipole phase in the twenty first century seems to be associated with an increase of both frequency and intensity of positive SST anomalies in the equatorial Pacific, and with a Rossby wave train-like anomaly pattern linking that ocean basin to South America, which regionally induces favorable conditions for moisture transport convergence and rainfall increase in SESA.
dc.format application/pdf
dc.language.iso eng
dc.publisher Springer
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject South America climate
dc.subject WCRP-CMIP3 multi-model dataset
dc.subject Rainfall variability
dc.subject ENSO
dc.subject.classification Meteorología y Ciencias Atmosféricas
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Summer precipitation variability over Southeastern South America in a global warming scenario
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-05-31T19:43:16Z
dc.identifier.eissn 1432-0894
dc.journal.volume 38
dc.journal.number 9
dc.journal.pagination 1867-1883
dc.journal.pais Alemania
dc.journal.ciudad Berlin
dc.description.fil Fil: Junquas, C.. Universite Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia
dc.description.fil Fil: Vera, Carolina Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmosfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmosfera; Argentina
dc.description.fil Fil: Li, L.. Universite Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia
dc.description.fil Fil: Le Treut, H.. Universite Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia
dc.journal.title Climate Dynamics
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00382-011-1141-y
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00382-011-1141-y


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)