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Université de Fribourg

Partitioning the uncertainty of ensemble projections of global glacier mass change

Marzeion, Ben ; Hock, Regine ; Anderson, Brian ; Bliss, Andrew ; Champollion, Nicolas ; Fujita, Koji ; Huss, Matthias ; Immerzeel, Walter W. ; Kraaijenbrink, Philip ; Malles, Jan‐Hendrik ; Maussion, Fabien ; Radić, Valentina ; Rounce, David R. ; Sakai, Akiko ; Shannon, Sarah ; Wal, Roderik ; Zekollari, Harry

In: Earth’s Future, 2020, vol. 8, no. 7, p. -

Glacier mass loss is recognized as a major contributor to current sea level rise. However, large uncertainties remain in projections of glacier mass loss on global and regional scales. We present an ensemble of 288 glacier mass and area change projections for the 21st century based on 11 glacier models using up to 10 general circulation models and four Representative Concentration Pathways...

Université de Fribourg

Direct observations of a three million cubic meter rock-slope collapse with almost immediate initiation of ensuing debris flows

Walter, Fabian ; Amann, Florian ; Kos, Andrew ; Kenner, Robert ; Phillips, Marcia ; Preux, Antoine de ; Huss, Matthias ; Tognacca, Christian ; Clinton, John ; Diehl, Tobias ; Bonanomi, Yves

In: Geomorphology, 2020, vol. 351, p. 106933

Catastrophic collapse of large rock slopes ranks as one of the most hazardous natural phenomena in mountain landscapes. The cascade of events, from rock- slope failure, to rock avalanche and the near-immediate release of debris flows has not previously been described from direct observations. We report on the 2017, 3.0 × 106 m3 failure on Pizzo Cengalo in Switzerland, which led to human...

Università della Svizzera italiana

A large scale, app-based behaviour change experiment persuading sustainable mobility patterns : methods, results and lessons learnt

Cellina, Francesca ; Bucher, Dominik ; Mangili, Francesca ; Veiga Simão, José ; Rudel, Roman ; Raubal, Martin

In: Sustainability, 2019, vol. 11, no. 9, p. 2674

The present urban transportation system, mostly tailored for cars, has long shown its limitations. In many urban areas, public transportation and soft mobility would be able to effectively satisfy many travel needs. However, they tend to be neglected, due to a deep-rooted car dependency. How can we encourage people to make sustainable mobility choices, reducing car use and the related CO 2...

Université de Fribourg

Distinguishing ice-rich and ice-poor permafrost to map ground temperatures and ground ice occurrence in the Swiss Alps

Kenner, Robert ; Noetzli, Jeannette ; Hoelzle, Martin ; Raetzo, Hugo ; Phillips, Marcia

In: The Cryosphere, 2019, vol. 13, no. 7, p. 1925–1941

Mountain permafrost is invisible, and mapping it is still a challenge. Available permafrost distribution maps often overestimate the permafrost extent and include large permafrost-free areas in their permafrost zonation. In addition, the representation of the lower belt of permafrost consisting of ice-rich features such as rock glaciers or ice-rich talus slopes can be challenging. These...