Université de Fribourg

Mass balance observations and reconstruction for Batysh Sook Glacier, Tien Shan, from 2004 to 2016

Kenzhebaev, Ruslan ; Barandun, Martina ; Kronenberg, Marlene ; Chen, Yaning ; Usubaliev, Ryskul ; Hoelzle, Martin

In: Cold Regions Science and Technology, 2017, vol. 135, p. 76-89

In this study we present an analysis of measured annual mass balances for the period 2011 to 2016 and a reconstruction of seasonal mass balances from 2004 to 2010 for Batysh Sook Glacier located in the Kyrgyz Tien Shan. Conventional methods and a model-based extrapolation of the point measurements were used to obtain glacier- wide mass balances and to analyze glaciological measurements....

Université de Fribourg

Imaging spectroscopy to assess the composition of ice surface materials and their impact on glacier mass balance

Naegeli, Kathrin ; Damm, Alexander ; Huss, Matthias ; Schaepman, Michael ; Hoelzle, Martin

In: Remote Sensing of Environment, 2015, vol. 168, p. 388–402

Glacier surfaces are not only composed of ice or snow but are heterogeneous mixtures of different materials. The occurrence and dynamics of light-absorbing impurities affect ice surface characteristics and strongly influence glacier melt processes. However, our understanding of the spatial distribution of impurities and their impact on ice surface characteristics and the glacier's energy budget...