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dc.contributor.author
Pérez, Silvia
dc.contributor.author
Sierra, Eduardo Mario
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Momo, Fernando Roberto
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Massobrio, Marcelo Juan
dc.date.available
2018-05-04T19:14:59Z
dc.date.issued
2015-01
dc.identifier.citation
Pérez, Silvia; Sierra, Eduardo Mario; Momo, Fernando Roberto; Massobrio, Marcelo Juan; Changes in Average Annual Precipitation in Argentina’s Pampa Region and Their Possible Causes; MDPI; Climate; 3; 1; 1-2015; 150-167
dc.identifier.uri
http://hdl.handle.net/11336/44208
dc.description.abstract
Changes in annual rainfall in five sub-regions of the Argentine Pampa Region (Rolling, Central, Mesopotamian, Flooding and Southern) were examined for the period 1941 to 2010 using data from representative locations in each sub-region. Dubious series were adjusted by means of a homogeneity test and changes in mean value were evaluated using a hydrometeorological time series segmentation method. In addition, an association was sought between shifts in mean annual rainfall and changes in large-scale atmospheric pressure systems, as measured by the Atlantic Multidecadal Oscillation (AMO), the Pacific Decadal Oscillation (PDO) and the Southern Oscillation Index (SOI). The results indicate that the Western Pampas (Central and Southern) are more vulnerable to abrupt changes in average annual rainfall than the Eastern Pampas (Mesopotamian, Rolling and Flooding). Their vulnerability is further increased by their having the lowest average rainfall. The AMO showed significant negative correlations with all sub-regions, while the PDO and SOI showed significant positive and negative correlations respectively with the Central, Flooding and Southern Pampa. The fact that the PDO and AMO are going through the phases of their cycles that tend to reduce rainfall in much of the Pampas helps explain the lower rainfall recorded in the Western Pampas sub-regions in recent years. This has had a significant impact on agriculture and the environment.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
MDPI
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Agro-Climatology
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Variability
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Segmentation of Hydrometeorological Time Series
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Teleconnections
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Climate Indices
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Meteorología y Ciencias Atmosféricas
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Changes in Average Annual Precipitation in Argentina’s Pampa Region and Their Possible Causes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-27T18:52:38Z
dc.identifier.eissn
2225-1154
dc.journal.volume
3
dc.journal.number
1
dc.journal.pagination
150-167
dc.journal.pais
Suiza
dc.journal.ciudad
Basilea
dc.description.fil
Fil: Pérez, Silvia. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Recursos Naturales y Ambiente. Cátedra de Climatología y Fenologías Agrícolas; Argentina
dc.description.fil
Fil: Sierra, Eduardo Mario. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Recursos Naturales y Ambiente. Cátedra de Climatología y Fenologías Agrícolas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Momo, Fernando Roberto. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina
dc.description.fil
Fil: Massobrio, Marcelo Juan. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Recursos Naturales y Ambiente. Cátedra de Climatología y Fenologías Agrícolas; Argentina
dc.journal.title
Climate
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2225-1154/3/1/150
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.3390/cli3010150
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