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Université de Fribourg

Modelling the future evolution of glaciers in the European Alps under the EURO-CORDEX RCM ensemble

Zekollari, Harry ; Huss, Matthias ; Farinotti, Daniel

In: The Cryosphere, 2019, vol. 13, no. 4, p. 1125–1146

Glaciers in the European Alps play an important role in the hydrological cycle, act as a source for hydroelectricity and have a large touristic importance. The future evolution of these glaciers is driven by surface mass balance and ice flow processes, of which the latter is to date not included explicitly in regional glacier projections for the Alps. Here, we model the future evolution of...

Université de Fribourg

A consensus estimate for the ice thickness distribution of all glaciers on Earth

Farinotti, Daniel ; Huss, Matthias ; Fürst, Johannes J. ; Landmann, Johannes ; Machguth, Horst ; Maussion, Fabien ; Pandit, Ankur

In: Nature Geoscience, 2019, vol. 12, no. 3, p. 168–173

Knowledge of the ice thickness distribution of the world’s glaciers is a fundamental prerequisite for a range of studies. Projections of future glacier change, estimates of the available freshwater resources or assessments of potential sea-level rise all need glacier ice thickness to be accurately constrained. Previous estimates of global glacier volumes are mostly based on scaling...

Université de Fribourg

Analysis of temporal and spatial variations in hydrometeorological elements in the Yarkant River Basin, China

Wei, Ren-juan ; Peng, Liang ; Liang, Chuan ; Haemmig, Christoph ; Huss, Matthias ; Mu, Zhen-xia ; He, Ying

In: Journal of Water and Climate Change, 2019, vol. 10, no. 1, p. 167–180

Yarkant River is a tributary of Tarim River in China, and the basin lacks observational data. To investigate past climatic variations and predict future climate changes, precipitation, air temperature and runoff data from Kaqun hydrological station are analysed at monthly and seasonal scales using detrended fluctuation analysis (DFA). Results show that DFA scaling exponents of monthly...

Université de Fribourg

Change detection of bare-ice albedo in the Swiss Alps

Naegeli, Kathrin ; Huss, Matthias ; Hoelzle, Martin

In: The Cryosphere, 2019, vol. 13, no. 1, p. 397–412

Albedo feedback is an important driver of glacier melt over bare-ice surfaces. Light- absorbing impurities strongly enhance glacier melt rates but their abundance, composition and variations in space and time are subject to considerable uncertainties and ongoing scientific debates. In this study, we assess the temporal evolution of shortwave broadband albedo derived from 15 end-of-summer...

Université de Fribourg

The role of glacier retreat for Swiss hydropower production

Schaefli, Bettina ; Manso, Pedro ; Fischerc, Mauro ; Huss, Matthias ; Farinotti, Daniel

In: Renewable Energy, 2019, vol. 132, p. 615–627

High elevation or high latitude hydropower production (HP) strongly relies on water resources that are influenced by glacier melt and are thus highly sensitive to climate warming. Despite of the wide-spread glacier retreat since the development of HP infrastructure in the 20th century, little quantitative information is available about the role of glacier mass loss for HP. In this paper, we...

Université de Fribourg

Global glacier volume projections under high-end climate change scenarios

Shannon, Sarah ; Smith, Robin ; Wiltshire, Andy ; Payne, Tony ; Huss, Matthias ; Betts, Richard ; Caesar, John ; Koutroulis, Aris ; Jones, Darren ; Harrison, Stephan

In: The Cryosphere, 2019, vol. 13, no. 1, p. 325–350

The Paris agreement aims to hold global warming to well below 2 ∘C and to pursue efforts to limit it to 1.5 ∘C relative to the pre-industrial period. Recent estimates based on population growth and intended carbon emissions from participant countries suggest global warming may exceed this ambitious target. Here we present glacier volume projections for the end of this century, under a...

Université de Fribourg

Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations

Barandun, Martina ; Huss, Matthias ; Usubaliev, Ryskul ; Azisov, Erlan ; Berthier, Etienne ; Kääb, Andreas ; Bolch, Tobias ; Hoelzle, Martin

In: The Cryosphere, 2018, vol. 12, no. 6, p. 1899–1919

Glacier surface mass balance observations in the Tien Shan and Pamir are relatively sparse and often discontinuous. Nevertheless, glaciers are one of the most important components of the high-mountain cryosphere in the region as they strongly influence water availability in the arid, continental and intensely populated downstream areas. This study provides reliable and continuous surface mass...

Université de Fribourg

Proglacial erosion rates and processes in a glacierized catchment in the Swiss Alps

Delaney, Ian ; Bauder, Andreas ; Huss, Matthias ; Weidmann, Yvo

In: Earth Surface Processes and Landforms, 2018, vol. 43, no. 4, p. 765–778

In the Swiss Alps, climatic changes have not only caused glacier retreat, but also likely increased sedimentation downstream of glaciers. This material either originates from below the glacier or from periglacial environments, which are exposed as glaciers retreat, and often consist of easily erodible sediment. Griesgletscher's catchment in the Swiss Alps was examined to quantify erosion in...

Université de Fribourg

The bedrock topography of Gries- and Findelengletscher

Feiger, Nadine ; Huss, Matthias ; Leinss, Silvan ; Sold, Leo ; Farinotti, Daniel

In: Geographica Helvetica, 2018, vol. 73, no. 1, p. 1–9

Knowledge of the ice thickness distribution of glaciers is important for glaciological and hydrological applications. In this contribution, we present two updated bedrock topographies and ice thickness distributions for Gries- and Findelengletscher, Switzerland. The results are based on ground-penetrating radar (GPR) measurements collected in spring 2015 and already-existing data. The GPR...