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Recent glacier retreat and climate trends in Cordillera Huaytapallana, Peru

dc.contributor.authorLópez-Moreno, J. I.
dc.contributor.authorFontaneda, S.
dc.contributor.authorBazo, J.
dc.contributor.authorRevuelto, J.
dc.contributor.authorAzorín-Molina, C.
dc.contributor.authorValero-Garcés, B.
dc.contributor.authorMorán-Tejeda, E.
dc.contributor.authorVicente-Serrano, S. M.
dc.contributor.authorZubieta, R.
dc.contributor.authorCochachin Rapre, Alejo
dc.date.accessioned2019-01-03T21:47:41Z
dc.date.available2019-01-03T21:47:41Z
dc.date.issued2014-01
dc.identifier.citationLópez-Moreno, J. I., Fontaneda, S., Bazo, J. et al. (2014) Recent glacier retreat and climate trends in Cordillera Huaytapallana, Peru. Global and Planetary Change, 112, 1-11. doi: https://doi.org/10.1016/j.gloplacha.2013.10.010es_PE
dc.identifier.issnISSN: 0921-8181, ESSN: 1872-6364es_PE
dc.identifier.urihttps://hdl.handle.net/20.500.12543/3204
dc.descriptionFiliación institucional de autor: Alejo Cochachín Rapre /Autoridad Nacional del Agua - Unidad de Glaciología y Recursos Hídricos (ANA-UGRH), Huaraz, Perues_PE
dc.descriptionOriginal abstract: We analyzed 19 annual Landsat ThematicMapper images from 1984 to 2011 to determine changes of the glaciated surface and snow line elevation in six mountain areas of the Cordillera Huaytapallana range in Peru. In contrast to other Peruvian mountains, glacier retreat in thesemountains has been poorly documented, even though this is a heavily glaciated area. These glaciers are the main source of water for the surrounding lowlands, and melting of these glaciers has triggered several outburst floods. During the 28-year study period, there was a 55% decrease in the surface covered by glaciers and the snowline moved upward in different regions by 93 to 157 m. Moreover, several new lakes formed in the recently deglaciated areas. There was an increase in precipitation during thewet season (October–April) over the 28-year study period. The significant increase inmaximum temperatures may be related to the significant glacier retreat in the study area. Therewere significant differences in thewet season temperatures during El Niño (warmer) and La Niña (colder) years. Although LaNiña yearswere generallymore humid than El Niño years, these differenceswere not statistically significant. Thus, glaciers tended to retreat at a high rate during El Niño years, but tended to be stable or increase during La Niña years, although therewere some notable deviations fromthis general pattern. Climate simulations for 2021 to 2050, based on the most optimistic assumptions of greenhouse gas concentrations, forecast a continuation of climatewarming at the same rate as documented here. Such changes in temperature might lead to a critical situation for the glaciers of the Cordillera Huaytapallana, and may significantly impact the water resources, ecology, and natural hazards of the surrounding areas.es_PE
dc.descriptionArtículo en período de embargoes_PE
dc.description.abstractAnaliza 19 imágenes anuales del Mapeador Temático Landsat durante un período de 28 años (desde 1984 hasta 2011) para determinar los cambios de la superficie glaciar y la elevación de la línea de nieve en seis áreas montañosas de la Cordillera Huaytapallana en Perú. En contraste con otras montañas peruanas, el retiro de glaciares en estas montañas ha sido pobremente documentado, a pesar de que esta es un área muy glaciar. Estos glaciares son la principal fuente de agua para las tierras bajas circundantes, y la fusión de estos glaciares ha provocado varias inundaciones.es_PE
dc.formatapplication/pdfes_PE
dc.language.isoenges_PE
dc.publisherElsevieres_PE
dc.relation.ispartofseriesGlobal and Planetary Change, January 2014, Volume 112, pp 1-11es_PE
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0921818113002385
dc.rightsinfo:eu-repo/semantics/closedAccesses_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.subjectComportamiento de eventos extremos de origen glaciar y climáticoes_PE
dc.subjectGestión de riesgos de desastres en recursos hídricoses_PE
dc.subjectMonitoreo de lagunas y glaciareses_PE
dc.titleRecent glacier retreat and climate trends in Cordillera Huaytapallana, Perues_PE
dc.typeinfo:eu-repo/semantics/articlees_PE
dc.identifier.doihttps://doi.org/10.1016/j.gloplacha.2013.10.010es_PE
dc.coverage.basinCuenca Santa


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