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dc.contributor.author
Maenza, Reinaldo Agustín
dc.contributor.author
Agosta Scarel, Eduardo Andres
dc.contributor.author
Bettolli, Maria Laura
dc.date.available
2018-09-18T20:15:23Z
dc.date.issued
2017-08
dc.identifier.citation
Maenza, Reinaldo Agustín; Agosta Scarel, Eduardo Andres; Bettolli, Maria Laura; Climate change and precipitation variability over the western ‘Pampas’ in Argentina; John Wiley & Sons Ltd; International Journal of Climatology; 37; 8-2017; 445-463
dc.identifier.issn
0899-8418
dc.identifier.uri
http://hdl.handle.net/11336/60155
dc.description.abstract
This work focuses on the analysis of spatial and temporal variability of precipitation in the central region of southern Central Argentina (SCA), a climate transition area which has experienced an important agricultural expansion. For this purpose, gauge station precipitation datasets available in the area were extensively used. The annual cycle shows a defined dry season (May–August) and wet season (September–April). Wet season represents over 85% of annual totals. A regionalization analysis of wet-season precipitation suggests five subregions with spatially homogeneous precipitation variability in SCA. Three out the five subregions are located in central SCA. Conveniently devised precipitation indices for the latter subregions show the presence of significant precipitation jumps by the early 1970s, and to a minor extent, the mid-1960s. Precipitation jumps are responsible for the observed long-term trends in central SCA, which explain positive precipitation changes over 30–40% of regional averages in the period 1922–2012. The presence of stationary and non-stationary components in SCA precipitation variability remotely connects the region mainly with variations in equatorial Pacific SSTs. The assessment of greenhouse gases concentration effects on future projections of wet-season precipitation over central SCA is investigated by means of multi-model analysis of historical experiment, and the representative concentration pathways 4.5 (RCP 4.5) and 8.5 (RCP 8.5), provided by the Coupled Model Intercomparison Project Phase 5. Results suggest an overall increased precipitation, roughly 15% respect to present climate, under most severe future scenario.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
1976&Ndash;1977 Climate Shift
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Climate Variability
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Cmip5
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Global Warming
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Precipitation Change
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The Pampas Region
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Investigación Climatológica
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Climate change and precipitation variability over the western ‘Pampas’ in Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-17T19:28:22Z
dc.journal.volume
37
dc.journal.pagination
445-463
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Maenza, Reinaldo Agustín. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Agosta Scarel, Eduardo Andres. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Bettolli, Maria Laura. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
International Journal of Climatology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/joc.5014
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://rmets.onlinelibrary.wiley.com/doi/abs/10.1002/joc.5014
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