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Université de Fribourg

Evaluating the effect of snow and ice melt in an Alpine headwater catchment and further downstream in the River Rhine

Junghans, Nadine ; Cullmann, Johannes ; Huss, Matthias

In: Hydrological Sciences Journal, 2011, vol. 56, no. 6, p. 981–993

The runoff regime of glacierized headwater catchments in the Alps is essentially characterized by snow and ice melt. High Alpine drainage basins influence distant downstream catchments of the Rhine River basin. In particular, during the summer months, low-flow conditions are probable with strongly reduced snow and ice melt under climate change conditions. This study attempts to quantify present...

Université de Fribourg

Extrapolating glacier mass balance to the mountain range scale: the European Alps 1900–2100

Huss, Matthias

In: The Cryosphere Discuss., 2012, vol. 6, p. 1117-1156

This study addresses the extrapolation of single glacier mass balance measurements to the mountain range scale and aims at deriving time series of area-averaged mass balance and ice volume change for all glaciers in the European Alps for the period 1900–2100. Long-term mass balance series for 50 Swiss glaciers based on a combination of field data and modelling, and WGMS data for glaciers in...

Université de Fribourg

GlacierMIP – A model intercomparison of global-scale glacier mass-balance models and projections

Hock, Regine ; Bliss, Andrew ; Marzeion, Ben ; Giesen, Rianne H. ; Hirabayashi, Yukiko ; Huss, Matthias ; Radić, Valentina ; Slangen, Aimée B. A.

In: Journal of Glaciology, 2019, vol. 65, no. 251, p. 453–467

Global-scale 21st-century glacier mass change projections from six published global glacier models are systematically compared as part of the Glacier Model Intercomparison Project. In total 214 projections of annual glacier mass and area forced by 25 General Circulation Models (GCMs) and four Representative Concentration Pathways (RCP) emission scenarios and aggregated into 19 glacier ...

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

Global-scale hydrological response to future glacier mass loss

Huss, Matthias ; Hock, Regine

In: Nature Climate Change, 2018, vol. 8, no. 2, p. 135–140

Worldwide glacier retreat and associated future runoff changes raise major concerns over the sustainability of global water resources1,2,3,4, but global-scale assessments of glacier decline and the resulting hydrological consequences are scarce5,6. Here we compute global glacier runoff changes for 56 large-scale glacierized drainage basins to 2100 and analyse the glacial impact on streamflow....

Université de Fribourg

Hazard assessment of glacial lake outburst floods from Kyagar glacier, Karakoram mountains, China

Haemmig, Christoph ; Huss, Matthias ; Keusen, Hansrudolf ; Hess, Josef ; Wegmüller, Urs ; Ao, Zhigang ; Kulubayi, Wubuli

In: Annals of Glaciology, 2014, vol. 55, no. 66, p. 34–44

Kyagar glacier is located in the Chinese Karakoram mountains. The glacier tongue entirely blocks the riverbed in the upper Shaksgam valley and impounds a glacial lake, which was the source of several violent and disastrous glacial lake outburst floods (GLOFs). A GLOF early warning system was implemented between 2011 and 2013. We present an integrative analysis of the hazard potential of Kyagar...

Université de Fribourg

A high-resolution bedrock map for the Antarctic Peninsula

Huss, Matthias ; Farinotti, Daniel

In: The Cryosphere, 2014, vol. 8, no. 4, p. 1261–1273

Assessing and projecting the dynamic response of glaciers on the Antarctic Peninsula to changed atmospheric and oceanic forcing requires high-resolution ice thickness data as an essential geometric constraint for ice flow models. Here, we derive a complete bedrock data set for the Antarctic Peninsula north of 70° S on a 100 m grid. We calculate distributed ice thickness based on surface...

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...