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Glacier recession and water resources in Peru’s Cordillera Blanca

dc.contributor.authorBaraer, Michel
dc.contributor.authorMark, Bryan G.
dc.contributor.authorMcKenzie, Jeffrey M.
dc.contributor.authorCondom, Thomas
dc.contributor.authorBury, Jeffrey
dc.contributor.authorHuh, Kyung-In
dc.contributor.authorPortocarrero, César
dc.contributor.authorGómez López, Jesús
dc.contributor.authorRathay, Sarah
dc.coverage.spatialCordillera Blanca
dc.date.accessioned2019-01-16T21:12:21Z
dc.date.available2019-01-16T21:12:21Z
dc.date.issued2012
dc.identifier.citationBaraer, M., Mark, B. G and McKenzie, Jeffrey M.et. al. (2012) Glacier recession and water resources in Peru’s Cordillera Blanca. Journal of Glaciology, 58(207), 134-150. doi: https://doi.org/10.3189/2012JoG11J186es_PE
dc.identifier.issnISSN: 0022-1430, ESSN: 1727-5652es_PE
dc.identifier.urihttps://hdl.handle.net/20.500.12543/3264
dc.descriptionOriginal abstract: The tropical glaciers of the Cordillera Blanca, Peru, are rapidly retreating, resulting in complex impacts on the hydrology of the upper Río Santa watershed. The effect of this retreat on water resources is evaluated by analyzing historical and recent time series of daily discharge at nine measurement points. Using the Mann-Kendall nonparametric statistical test, the significance of trends in three hydrograph parameters was studied. Results are interpreted using synthetic time series generated from a hydrologic model that calculates hydrographs based on glacier retreat sequences. The results suggest that seven of the nine study watersheds have probably crossed a critical transition point, and now exhibit decreasing dry-season discharge. Our results suggest also that once the glaciers completely melt, annual discharge will be lower than present by 2-30% depending on the watershed. The retreat influence on discharge will be more pronounced during the dry season than at other periods of the year. At La Balsa, which measures discharge from the upper Río Santa, the glacier retreat could lead to a decrease in dry-season average discharge of 30%.es_PE
dc.descriptionArtículo en acceso abiertoes_PE
dc.description.abstractMenciona el rápido retroceso de los glaciares tropicales de la Cordillera Blanca, Perú, teniendo como resultados en impactos complejos en la hidrología de la cuenca alta del Río Santa. Menciona que el efecto de este retiro en los recursos hídricos se evalúa analizando series de tiempo históricas y recientes de descarga diaria en nueve puntos de medición y que se estudió la importancia de las tendencias en tres parámetros de hidrografía. Señala además, entre otros aspectos, que los resultados sugieren que una vez que los glaciares se derritan completamente, la descarga anual será más baja dependiendo de la cuenca.es_PE
dc.formatapplication/pdfes_PE
dc.language.isoenges_PE
dc.publisherCUPes_PE
dc.relation.ispartofseriesJournal of Glaciology, 2012, Volume 58, Issue 207 pp 134-150es_PE
dc.relation.urihttps://www.cambridge.org/core/journals/journal-of-glaciology/article/glacier-recession-and-water-resources-in-perus-cordillera-blanca/5CEA7495D2BF050058A6B7280FE89A12
dc.rightsinfo:eu-repo/semantics/openAccesses_PE
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.sourceAutoridad Nacional del Aguaes_PE
dc.sourceRepositorio institucional - ANAes_PE
dc.subjectCambio climáticoes_PE
dc.subjectConservación de glaciareses_PE
dc.subjectRiesgos de disponibilidad hídricaes_PE
dc.subjectMonitoreo de lagunas y glaciareses_PE
dc.titleGlacier recession and water resources in Peru’s Cordillera Blancaes_PE
dc.typeinfo:eu-repo/semantics/articlees_PE
dc.identifier.doihttps://doi.org/10.3189/2012JoG11J186es_PE


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