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Université de Fribourg

Ice thickness measurements and volume estimates for glaciers in Norway

Andreassen, l.M. ; Huss, Matthias ; Melvold, K. ; Elvehøy, H. ; Winsvold, S. H.

In: Journal of Glaciology, 2015, vol. 61, no. 228, p. 763–775

Glacier volume and ice thickness distribution are important variables for water resource management in Norway and the assessment of future glacier changes. We present a detailed assessment of thickness distribution and total glacier volume for mainland Norway based on data and modelling. Glacier outlines from a Landsat-derived inventory from 1999 to 2006 covering an area of 2692 ± 81 km² were...

Université de Fribourg

Identification of glacial meltwater runoff in a karstic environment and its implication for present and future water availability

Finger, D. ; Hugentobler, A. ; Huss, Matthias ; Voinesco, A. ; Wernli, Heini ; Fischer, D. ; Weber, E. ; Jeannin, Pierre-Yves ; Kauzlaric, M. ; Wirz, A. ; Vennemann, T. ; Hüsler, F. ; Schädler, B. ; Weingartner, R.

In: Hydrol. Earth Syst. Sci., 2013, vol. 17, no. 8, p. 3261–3277

Glaciers all over the world are expected to continue to retreat due to the global warming throughout the 21st century. Consequently, future seasonal water availability might become scarce once glacier areas have declined below a certain threshold affecting future water management strategies. Particular attention should be paid to glaciers located in a karstic environment, as parts of the...

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...

Université de Fribourg

The impact of climate change and glacier mass loss on the hydrology in the Mont-Blanc massif

Laurent, Léa ; Buoncristiani, Jean‑François ; Pohl, Benjamin ; Zekollari, Harry ; Farinotti, Daniel ; Huss, Matthias ; Mugnier, Jean‑Louis ; Pergaud, Julien

In: Scientific Reports, 2020, vol. 10, no. 1, p. 10420

The Mont-Blanc massif, being iconic with its large glaciers and peaks of over 4,000 m, will experience a sharp increase in summer temperatures during the twenty-first century. By 2100, the impact of climate change on the cryosphere and hydrosphere in the Alps is expected to lead to a decrease in annual river discharge. In this work, we modelled the twenty-first century evolution of runoff in...

Université de Fribourg

The impact of Saharan dust and black carbon on albedo and long-term mass balance of an Alpine glacier

Gabbi, J. ; Huss, Matthias ; Bauder, Andreas ; Cao, F. ; Schwikowski, M.

In: The Cryosphere, 2015, vol. 9, no. 4, p. 1385–1400

Light-absorbing impurities in snow and ice control glacier melt as shortwave radiation represents the main component of the surface energy balance. Here, we investigate the long-term effect of snow impurities, i.e., mineral dust and black carbon (BC), on albedo and glacier mass balance. The analysis was performed over the period 1914–2014 for two sites on Claridenfirn, Swiss Alps, where an...

Université de Fribourg

Integrating a glacier retreat model into a hydrological model – Case studies of three glacierised catchments in Norway and Himalayan region

Li, Hong ; Beldring, Stein ; Xu, C.-Y. ; Huss, Matthias ; Melvold, Kjetil ; Jain, Sharad K.

In: Journal of Hydrology, 2015, vol. 527, p. 656–667

Glaciers are crucial in many countries where meltwater from glaciers is an important source of water for drinking water supply, irrigation, hydropower generation and the ecological system. Glaciers are also important indicators of climate change. They have been significantly altered due to the global warming and have subsequently affected the regional hydrological regime. However, few models are...

Université de Fribourg

Integrating point glacier mass balance observations into hydrologic model identification

Schaefli, Bettina ; Huss, Matthias

In: Hydrology and Earth System Sciences, 2011, vol. 15, p. 1227-1241

The hydrology of high mountainous catchments is often predicted with conceptual precipitation-discharge models that simulate the snow accumulation and ablation behavior of a very complex environment using as only input temperature and precipitation. It is hereby often assumed that some glacier-wide annual balance estimates, in addition to observed discharge, are sufficient to reliably calibrate...

Université de Fribourg

Interdisciplinary assessment of complex regional water systems and their future evolution: how socioeconomic drivers can matter more than climate

Reynard, Emmanuel ; Bonriposi, Mariano ; Graefe, Olivier ; Homewood, Christine ; Huss, Matthias ; Kauzlaric, Martina ; Liniger, Hanspeter ; Rey, Emmanuel ; Rist, Stephan ; Schädler, Bruno ; Schneider, Flurina ; Weingartner, Rolf

In: Wiley Interdisciplinary Reviews: Water, 2014, vol. 1, no. 4, p. 413–426

Modeling of future water systems at the regional scale is a difficult task due to the complexity of current structures (multiple competing water uses, multiple actors, formal and informal rules) both temporally and spatially. Representing this complexity in the modeling process is a challenge that can be addressed by an interdisciplinary and holistic approach. The assessment of the water system...

Université de Fribourg

Large hydropower and water-storage potential in future glacier-free basins

Farinotti, Daniel ; Round, Vanessa ; Huss, Matthias ; Compagno, Loris ; Zekollari, Harry

In: Nature, 2019, vol. 575, no. 7782, p. 341–344

Climate change is causing widespread glacier retreat1, and much attention is devoted to negative impacts such as diminishing water resources2, shifts in runoff seasonality3, and increases in cryosphere-related hazards4. Here we focus on a different aspect, and explore the water-storage and hydropower potential of areas that are expected to become ice-free during the course of this century....

Université de Fribourg

The length of the world’s glaciers – a new approach for the global calculation of center lines

Machguth, Horst ; Huss, Matthias

In: The Cryosphere, 2014, vol. 8, no. 5, p. 1741–1755

Glacier length is an important measure of glacier geometry. Nevertheless, global glacier inventories are mostly lacking length data. Only recently semi-automated approaches to measure glacier length have been developed and applied regionally. Here we present a first global assessment of glacier length using an automated method that relies on glacier surface slope, distance to the glacier margins...