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Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing

dc.contributor.authorRacoviteanu, Adina E.
dc.contributor.authorArnaud, Yves
dc.contributor.authorWilliams, Mark. W.
dc.contributor.authorOrdóñez, Julio
dc.coverage.spatialCordillera Blanca
dc.date.accessioned2019-02-11T16:34:28Z
dc.date.available2019-02-11T16:34:28Z
dc.date.issued2008
dc.identifier.citationRacoviteanu, A. E., Arnaud, Y., Williams, M.. W. et. al. (2008) Decadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensing. Journal of Glaciology, 54(186), 499-510. doi: https://doi.org/10.3189/002214308785836922es_PE
dc.identifier.issnISSN: 0022-1430, ESSN: 1727-5652es_PE
dc.identifier.urihttps://hdl.handle.net/20.500.12543/3333
dc.descriptionOriginal abstract: We present spatial patterns of glacier fluctuations from the Cordillera Blanca, Peru, (glacier area, terminus elevations, median elevations and hypsography) at decadal timescales derived from 1970 aerial photography, 2003 SPOT5 satellite data, Geographic Information Systems (GIS) and statistical analyses. We derived new glacier outlines from the 2003 SPOT images, and ingested them in the Global Land and Ice Measurements from Space (GLIMS) glacier database.We examined changes in glacier area on the eastern and western side of the Cordillera in relation to topographic and climate variables (temperature and precipitation). Results include (1) an estimated glacierized area of 569.6 21 km2 in 2003, (2) an overall loss in glacierized area of 22.4% from 1970 to 2003, (3) an average rise in glacier terminus elevations by 113m and an average rise in the median elevation of glaciers by 66 m, showing a shift of ice to higher elevations, especially on the eastern side of the Cordillera, and (4) an increase in the number of glaciers, which indicates disintegration of ice bodies. Annual air temperature showed a significant upward trend in the last 30 years, with larger temperature increases at lower elevations. There was a slight but not significant decrease in precipitation. Our results are consistent with glacier retreat and warming trends noted in the last three decades in the tropics.es_PE
dc.descriptionArtículo en acceso abiertoes_PE
dc.description.abstractPresenta patrones espaciales de fluctuaciones glaciares de la Cordillera Blanca, Perú, (glaciar área, elevaciones terminales, elevaciones medias e hipsografía) en escalas de tiempo decadales derivadas de fotografía aérea 1970, datos satelitales SPOT5 2003, sistemas de información geográfica (GIS) y análisis estadístico. Asimismo analiza nuevos contornos de glaciares de las imágenes SPOT de 2003, y los incorpora en la Base de datos Global de glaciares de mediciones de tierra y hielo desde el espacio (GLIMS). Y examina los cambios en el área glaciar en el lado este y oeste de la Cordillera en relación con las variables topográficas y climáticas (temperatura y precipitación).es_PE
dc.formatapplication/pdfes_PE
dc.language.isoenges_PE
dc.publisherCUPes_PE
dc.relation.ispartofseriesJournal of Glaciology, 2008, Volume 54, Issue 186 pp 499-510es_PE
dc.relation.urihttps://www.cambridge.org/core/journals/journal-of-glaciology/article/decadal-changes-in-glacier-parameters-in-the-cordillera-blanca-peru-derived-from-remote-sensing/5722814E0DF45D532A20F645CDD0A5FA
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.subjectClimatologíaes_PE
dc.subjectMonitoreo de lagunas y glaciareses_PE
dc.titleDecadal changes in glacier parameters in the Cordillera Blanca, Peru, derived from remote sensinges_PE
dc.typeinfo:eu-repo/semantics/articlees_PE
dc.identifier.doihttps://doi.org/10.3189/002214308785836922es_PE


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