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dc.contributor.authorFyffe, C.L.
dc.contributor.authorPotter, E.
dc.contributor.authorFugger, S.
dc.contributor.authorOrr, A.
dc.contributor.authorFatichi, Simone
dc.contributor.authorLoarte, Edwin
dc.contributor.authorMedina, Katy
dc.contributor.authorHellström, R.Å.
dc.contributor.authorBernat, M.
dc.contributor.authorAubry-Wake, Caroline
dc.contributor.authorGurgiser, W.
dc.contributor.authorPerry, L. B.
dc.contributor.authorSuarez, Wilson
dc.contributor.authorQuincey, D.J.
dc.contributor.authorPellicciotti, F.
dc.coverage.spatialCordillera Blanca
dc.coverage.spatialCordillera de Vilcanota
dc.description.abstractPeruvian glaciers are important contributors to dry season runoff for agriculture and hydropower, but they are at risk of disappearing due to climate change. We applied a physically based, energy balance melt model at five on-glacier sites within the Peruvian Cordilleras Blanca and Vilcanota. Net shortwave radiation dominates the energy balance, and despite this flux being higher in the dry season, melt rates are lower due to losses from net longwave radiation and the latent heat flux. The sensible heat flux is a relatively small contributor to melt energy. At three of the sites the wet season snowpack was discontinuous, forming and melting within a daily to weekly timescale, and resulting in highly variable melt rates closely related to precipitation dynamics. Cold air temperatures due to a strong La Niña year at Shallap Glacier (Cordillera Blanca) resulted in a continuous wet season snowpack, significantly reducing wet season ablation. Sublimation was most important at the highest site in the accumulation zone of the Quelccaya Ice Cap (Cordillera Vilcanota), accounting for 81% of ablation, compared to 2%–4% for the other sites. Air temperature and precipitation inputs were perturbed to investigate the climate sensitivity of the five glaciers. At the lower sites warmer air temperatures resulted in a switch from snowfall to rain, so that ablation was increased via the decrease in albedo and increase in net shortwave radiation. At the top of Quelccaya Ice Cap warming caused melting to replace sublimation so that ablation increased nonlinearly with air temperature.es_PE
dc.publisherJohn Wiley & Sonses_PE
dc.relation.ispartofurn:issn: 2169897X
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Estados Unidos de América*
dc.sourceRepositorio Institucional - SENAMHIes_PE
dc.sourceServicio Nacional de Meteorología e Hidrología del Perúes_PE
dc.subjectCambio Climáticoes_PE
dc.subjectEnergy Balancees_PE
dc.subjectGlacier Dynamicses_PE
dc.subjectShallap Glacieres_PE
dc.subjectLongwave Radiationes_PE
dc.subjectSensible Heat Fluxes_PE
dc.titleThe Energy and Mass Balance of Peruvian Glacierses_PE
dc.identifier.isni0000 0001 0746 0446
dc.description.peerreviewPor pares
dc.identifier.journalJournal of Geophysical Research: Atmospheres

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