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dc.contributor.authorLucas, Christine-
dc.contributor.authorAguilera Betti, Isabella-
dc.contributor.authorMuñoz, Ariel A.-
dc.contributor.authorPuchi, Paulina-
dc.contributor.authorSapriza, Gonzalo-
dc.contributor.authorProfumo, Ludmila-
dc.contributor.authorMaxwell, R. Stockton-
dc.contributor.authorVenegas Gonzalez, Alejandro-
dc.date.accessioned2023-12-11T16:06:27Z-
dc.date.available2023-12-11T16:06:27Z-
dc.date.issued2022-
dc.identifier.citationLucas, C, Aguilera Betti, I, Muñoz, A, y otros. "Cross-continental hydroclimate proxies: tree-rings in Central Chile reconstruct historical streamflow in Southeastern South American rivers" Progress in Physical Geography, [en línea], 46(3)(2022) https://doi.org/10.1177/03091333211067466es
dc.identifier.urihttps://hdl.handle.net/20.500.12008/41749-
dc.description.abstractRegional teleconnections permit cross-continental modeling of hydroclimate throughout the world. Treerings are a good hydroclimatic proxy used to reconstruct drought and streamflow in regions that respond to common global forcings.We used a multi-species dataset of 32 tree-ring width chronologies from Chile and Uruguay as a climate proxy to infer annual streamflow (Q) variability in the Negro River basin, a grasslanddominated watershed of lowland Southeastern South America. A positive linear correlation between treering chronologies from Central Chile and annual Negro River instrumental streamflow from 1957 to 2012 indicated a cross-continental teleconnection between hydroclimate variability in Central Chile and Northeastern Uruguay. This relationship was mediated in part by the El Niño Southern Oscillation (ENSO), whereby the El Nino 3.4 Index was positively correlated with regional rainfall, annual tree growth, and Q anomalies. Despite the proximity of Uruguayan tree-ring chronologies to Negro River hydrometric stations, the Chilean tree-ring chronologies best predicted annual streamflow. Thus, using tree-ring data from four long-term moisture-sensitive chronologies of the species Cryptocarya alba in Central Chile (32–34°S), we present the first streamflow reconstruction (1890–2009) in the lower La Plata Basin. The reconstruction supports regional evidence for increasing frequency of extreme flood years over the past century in Uruguay. We demonstrate how climate teleconnections that mediate local hydroclimate variability permit the crosscontinental reconstruction of streamflow, filling a major geographical gap in historical proxies for flooding and drought in grassland biomes of the southern hemispherees
dc.description.sponsorshipANII FCE 1_2019_155963es
dc.format.mimetypeapplication/pdfes
dc.language.isoenes
dc.publisherSagees
dc.relation.ispartofProgress in Physical Geography 2022, Vol. 46(3) 458–480es
dc.rightsLas obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)es
dc.subjectDendrohydrologyes
dc.subjectEl Niñoes
dc.subjectLa Plata riveres
dc.subjectSoutheastern South Americaes
dc.subjectteleconnectiones
dc.subjectUruguayes
dc.titleCross-continental hydroclimate proxies: tree-rings in Central Chile reconstruct historical streamflow in Southeastern South American riverses
dc.typeArtículoes
dc.contributor.filiacionLucas Christine, Universidad de la Republica (Uruguay). Cenur Litoral Norte-
dc.contributor.filiacionAguilera Betti Isabella-
dc.contributor.filiacionMuñoz Ariel A.-
dc.contributor.filiacionPuchi Paulina-
dc.contributor.filiacionSapriza Gonzalo, Universidad de la Republica (Uruguay). Cenur Litoral Norte-
dc.contributor.filiacionProfumo Ludmila, Universidad de la Republica (Uruguay). Centro Universitario de Rivera-
dc.contributor.filiacionMaxwell R. Stockton-
dc.contributor.filiacionVenegas Gonzalez Alejandro-
dc.rights.licenceLicencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)es
dc.identifier.doi10.1177/03091333211067466-
Aparece en las colecciones: Publicaciones académicas - CENUR Litoral Norte

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