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dc.contributor.author Mundo, Ignacio Alberto
dc.contributor.author Masiokas, Mariano Hugo
dc.contributor.author Villalba, Ricardo
dc.contributor.author Morales, Mariano Santos
dc.contributor.author Neukom, R.
dc.contributor.author Le Quesne, C.
dc.contributor.author Urrutia, R. B.
dc.contributor.author Lara, A.
dc.date.available 2019-03-29T12:16:10Z
dc.date.issued 2012-08
dc.identifier.citation Mundo, Ignacio Alberto; Masiokas, Mariano Hugo; Villalba, Ricardo; Morales, Mariano Santos; Neukom, R.; et al.; Multi-century tree-ring based reconstruction of the Neuquén River streamflow, northern Patagonia, Argentina; Copernicus Publications; Climate Of The Past; 8; 2; 8-2012; 815-829
dc.identifier.issn 1814-9324
dc.identifier.uri http://hdl.handle.net/11336/72793
dc.description.abstract In most cases, gauged river flow records in southern South America extend for only a few decades, hampering the detection of long-term, decadal to centennial-scale cycles and trends. Long streamflow series can be reconstructed from tree-ring records, offering the opportunity of extending the limited hydrological instrumental data to several centuries. In northern Patagonia, Argentina, the Neuquén River has great importance for local and national socio-economic activities such as hydroelectric power generation, agriculture and tourism. In this study, new and updated tree-ring chronologies from Araucaria araucana and Austrocedrus chilensis are used to reconstruct the October-June mean streamflow for the Neuquén River and place the period of gauged flows (1903-2009), in a long-term, multi-century context. The reconstruction covers the period 1346-2000 AD and was developed from a network of 43 tree-ring chronologies, grouped in composite series, using a nested principal component regression approach. Analyses of the frequency, intensity, and duration of droughts and pluvial events indicate that the 20th century contains some of the driest and wettest annual to decadal-scale events in the last 654 yr, but longer and more severe events were recorded in previous centuries. Blackman-Tukey and singular spectral analyses identified quasiperiodic oscillations from 3.5 to 17.5 yr. A dominant 6.8-yr cycle explains ca. 23.6% of the total variance in the Neuquén River streamflow reconstruction. Correlation analyses showed that discharges of the Neuquén River are related to variations in the Southern Annular Mode (SAM), a measure of air mass exchanges between middle and high latitudes in the Southern Hemisphere. This association is consistent with previous studies that indicate a strong correlation between rainfall in northern Patagonia and SAM variations.
dc.format application/pdf
dc.language.iso eng
dc.publisher Copernicus Publications
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by/2.5/ar/
dc.subject Rio Neuquén
dc.subject streamflow reconstruction
dc.subject tree rings
dc.subject streamflow changes
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 Multi-century tree-ring based reconstruction of the Neuquén River streamflow, northern Patagonia, 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 2019-02-06T17:38:38Z
dc.identifier.eissn 1814-9332
dc.journal.volume 8
dc.journal.number 2
dc.journal.pagination 815-829
dc.journal.pais Alemania
dc.journal.ciudad Gottingen
dc.description.fil Fil: Mundo, Ignacio Alberto. 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. Universidad Nacional de La Plata; Argentina
dc.description.fil Fil: Masiokas, Mariano Hugo. 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: Villalba, Ricardo. 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: Morales, Mariano Santos. 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: Neukom, R.. University of Melbourne; Australia
dc.description.fil Fil: Le Quesne, C.. Universidad Austral de Chile; Chile
dc.description.fil Fil: Urrutia, R. B.. Universidad Austral de Chile; Chile. University of Oxford; Reino Unido
dc.description.fil Fil: Lara, A.. Universidad Austral de Chile; Chile
dc.journal.title Climate Of The Past
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.clim-past.net/8/815/2012/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.5194/cp-8-815-2012
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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 2.5 Unported (CC BY 2.5)