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Université de Fribourg

Montanaqua: tackling water stress in the alps: water management options in the crans-montana-sierre region (valais)

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

In: GAIA - Ecological Perspectives for Science and Society, 2016, vol. 25, no. 3, p. 191–193

Transdisciplinary research is considered an appropriate mode of knowledge production in the search for pathways towards a more sustainable governance of natural resources. However, the co-production of new knowledge between scientists of different disciplines and nonacademic stakeholders is a challenge that requires novel research designs, methods, and approaches. The MontanAqua team has ...

Université de Fribourg

Application and validation of long-range terrestrial laser scanning to monitor the mass balance of very small glaciers in the Swiss Alps

Fischer, Mauro ; Huss, Matthias ; Kummert, Mario ; Hoelzle, Martin

In: The Cryosphere, 2016, vol. 10, no. 3, p. 1279–1295

Due to the relative lack of empirical field data, the response of very small glaciers (here defined as being smaller than 0.5 km²) to current atmospheric warming is not fully understood yet. Investigating their mass balance, e.g. using the direct glaciological method, is a prerequisite to fill this knowledge gap. Terrestrial laser scanning (TLS) techniques operating in the near infrared...

Université de Fribourg

Sensitivity of very small glaciers in the Swiss Alps to future climate change

Huss, Matthias ; Fischer, Mauro

In: Cryospheric Sciences, 2016, p. 34

Very small glaciers (<0.5 km2) account for more than 80% of the total number of glaciers in mid- to low-latitude mountain ranges. Although their total area and volume is small compared to larger glaciers, they are a relevant component of the cryosphere, contributing to landscape formation, local hydrology, and sea-level rise. Worldwide glacier monitoring mostly focuses on medium-sized to large...

Université de Fribourg

Mass balance re-analysis of Findelengletscher, Switzerland; benefits of extensive snow accumulation measurements

Sold, Leo ; Huss, Matthias ; Machguth, Horst ; Joerg, Philip C. ; Leysinger Vieli, Gwendolyn ; Linsbauer, Andreas ; Salzmann, Nadine ; Zemp, Michael ; Hoelzle, Martin

In: Front. Earth Sci. - Cryospheric Sciences, 2016, p. 18

A re-analysis is presented here of a 10 year mass balance series at Findelengletscher, a temperate mountain glacier in Switzerland. Calculating glacier-wide mass balance from the set of glaciological point balance observations using conventional approaches, such as the profile or contour method, resulted in significant deviations from the reference value given by the geodetic mass...

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 value of multiple data set calibration versus model complexity for improving the performance of hydrological models in mountain catchments

Finger, David ; Vis, Marc ; Huss, Matthias ; Seibert, Jan

In: Water Resources Research, 2015, vol. 51, no. 4, p. 1939–1958

The assessment of snow, glacier, and rainfall runoff contribution to discharge in mountain streams is of major importance for an adequate water resource management. Such contributions can be estimated via hydrological models, provided that the modeling adequately accounts for snow and glacier melt, as well as rainfall runoff. We present a multiple data set calibration approach to estimate runoff...

Université de Fribourg

Re-analysis of seasonal mass balance at Abramov glacier 1968–2014

Barandun, Martina ; Huss, Matthias ; Sold, Leo ; Farinotti, Daniel ; Azisov, Erlan ; Salzmann, Nadine ; Usubaliev, Ryskul ; Merkushkin, Alexandr ; Hoelzle, Martin

In: Journal of Glaciology, 2015, vol. 61, no. 230, p. 1103–1117

Abramov glacier, located in the Pamir Alay, Kyrgyzstan, is a reference glacier within the Global Terrestrial Network for Glaciers. Long-term glaciological measurements exist from 1968 to 1998 and a mass-balance monitoring programme was re-established in 2011. In this study we re-analyse existing mass-balance data and use a spatially distributed mass-balance model to provide continuous seasonal...

Université de Fribourg

A new model for global glacier change and sea-level rise

Huss, Matthias ; Hock, Regine

In: Cryospheric Sciences, 2015, p. 54

The anticipated retreat of glaciers around the globe will pose far-reaching challenges to the management of fresh water resources and significantly contribute to sea-level rise within the coming decades. Here, we present a new model for calculating the twenty-first century mass changes of all glaciers on Earth outside the ice sheets. The Global Glacier Evolution Model (GloGEM) includes mass loss...

Université de Fribourg

New long-term mass-balance series for the Swiss Alps

Huss, Matthias ; Dhulst, Laurie ; Bauder, Andreas

In: Journal of Glaciology, 2015, vol. 61, no. 227, p. 551–562

In this study we present 19 new or re-analysed series of glacier-wide seasonal mass balance for the Swiss Alps based on direct measurements. The records partly start around 1920 and continue until today. Previously unpublished and unevaluated observations of point winter and annual balance are compiled from various sources and archives. These highly valuable datasets have not yet been...

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...