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dc.contributor.author Seluchi, Marcelo Enrique
dc.contributor.author Norte, Federico Augusto
dc.contributor.author Satyamurty, Prakki
dc.contributor.author Chou, Sin Chan
dc.date.available 2018-04-05T18:59:00Z
dc.date.issued 2003-06
dc.identifier.citation Seluchi, Marcelo Enrique; Norte, Federico Augusto; Satyamurty, Prakki; Chou, Sin Chan; Analysis of Three Situations of the Foehn Effect over the Andes (Zonda Wind) Using the Eta–CPTEC Regional Model; American Meteorological Society; Weather And Forecasting; 18; 3; 6-2003; 481-501
dc.identifier.issn 0882-8156
dc.identifier.uri http://hdl.handle.net/11336/40961
dc.description.abstract The zonda is a warm and extremely dry wind that occurs east of the Andes Cordillera in the extratropical latitudes of South America. Its orographic origin is similar to the foehn that blows in Germany and Austria and the chinook that occurs east of the Rocky Mountains. Three typical zonda events of different categories (surface and elevated) are described, through observational and Eta–Centro de Previsa˜o de Tempo e Estudos Clima´ticos (CPTEC) model output. During the events the temperature rises sharply by 108–158C and the dewpoint temperature drops by 158–208C in an interval of a few hours. The sustained wind strength at the surface increases to 30 kt, with gusts of more than 40 kt. The episodes generally start around midday and last for about 10 h. The Eta–CPTEC model was able to forecast several aspects of the three analyzed zonda cases, such as wind strength, temperature, and humidity changes, and their starting and ending times. Some relationships between the intensity of the windward static stability and the zonda occurrence were observed. The synoptic pressure configuration resulting from frontal passages associated with depressions that moved over lower than normal latitudes preceded the zonda occurrence. Sensitivity experiments showed that if the Andes were lower, more frequent but less intense zonda episodes could be expected.
dc.format application/pdf
dc.language.iso eng
dc.publisher American Meteorological Society
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Foehn Effect
dc.subject Viento Zonda
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 Analysis of Three Situations of the Foehn Effect over the Andes (Zonda Wind) Using the Eta–CPTEC Regional Model
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-03-16T15:30:37Z
dc.identifier.eissn 1520-0434
dc.journal.volume 18
dc.journal.number 3
dc.journal.pagination 481-501
dc.journal.pais Estados Unidos
dc.journal.ciudad Boston
dc.description.fil Fil: Seluchi, Marcelo Enrique. Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista. Centro de Previsão de Tempo e Estudos Climáticos.; Brasil
dc.description.fil Fil: Norte, Federico Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil Fil: Satyamurty, Prakki. Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista. Centro de Previsão de Tempo e Estudos Climáticos.; Brasil
dc.description.fil Fil: Chou, Sin Chan. Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista. Centro de Previsão de Tempo e Estudos Climáticos.; Brasil
dc.journal.title Weather And Forecasting
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://journals.ametsoc.org/doi/abs/10.1175/1520-0434%282003%2918%3C481%3AAOTSOT%3E2.0.CO%3B2
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1175/1520-0434(2003)18%3C481:AOTSOT%3E2.0.CO;2
dc.conicet.fuente unificacion


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info:eu-repo/semantics/openAccess 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)