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Université de Fribourg

Climate trends and glacier retreat in the Cordillera Blanca, Peru, revisited

Schauwecker, S. ; Rohrer, M. ; Acuña, D. ; Cochachin, A. ; Dávila, L. ; Frey, H. ; Giráldez, C. ; Gómez, J. ; Huggel, C. ; Jacques-Coper, M. ; Loarte, E. ; Salzmann, Nadine ; Vuille, M.

In: Global and Planetary Change, 2014, vol. 119, p. 85–97

The total glacial area of the Cordillera Blanca, Peru, has shrunk by more than 30% in the period of 1930 to the present with a marked glacier retreat also in the recent decades. The aim of this paper is to assess local air temperature and precipitation changes in the Cordillera Blanca and to discuss how these variables could have affected the observed glacier retreat between the 1980s and...

Université de Fribourg

High uncertainty in 21st century runoff projections from glacierized basins

Huss, Matthias ; Zemp, Michael ; Joerg, Philip C. ; Salzmann, Nadine

In: Journal of Hydrology, 2014, vol. 510, p. 35–48

Glacier response to a changing climate and its impact on runoff is understood in general terms, but model-based projections are affected by considerable uncertainties. They originate from the driving climate model, input data quality, and simplifications in the glacio-hydrological model and hamper the reliability of the simulations. Here, an integrative assessment of the uncertainty in 21st...