WSL Institute for Snow and Avalanche Research SLF

Services and products 10.02.2026
20 years of White Risk: avalanche app wins award
20 years of White Risk: avalanche app wins award

A profile of the White Risk avalanche prevention platform, which turns 20 this winter and recently won the Best of Swiss Apps award.

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The graphic shows a mountain landscape with snow and two skiers climbing up a steep snowy slope. Screenshots also show how the ‘White Risk’ prevention platform has developed over the last 20 years from a CD-ROM to an app.
 
Snow and avalanches 09.02.2026
Avalanche winter 1951: forest as protection
Avalanche winter 1951: forest as protection

Forests are the most extensive form of avalanche protection, and after 1951 the SLF and WSL jointly researched sustainable reforestation.

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Black and white aerial photograph of a snow-covered mountain village with forest on the hillside.
 
Snow and avalanches 03.02.2026
Avalanche winter 1951: impetus for hazard maps
Avalanche winter 1951: impetus for hazard maps

After the avalanche winter of 1950/51, the SLF developed a colour code for avalanche-prone areas, forming the basis for today's hazard maps.

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Map section with handwritten markings, lines, and parcel numbers
 
Snow and avalanches 27.01.2026
Avalanche winter 1951 redefines barrier technology
Avalanche winter 1951 redefines barrier technology

After 1951, the SLF stepped up its research into protective measures. The result? Guidelines, fewer walls – and an international reputation.

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Black-and-white photo of several wooden frames on a snow-covered slope with terraces in the background
 

Research for people and the environment in a changing world

NEWS

Logbook
04.02.2026
A fluffy skua chick sits on a rock. More rocks can be seen in the background.

Setbacks, Penguins, and a Marathon in Antarctica

Phd student Anja Mödl is currently conducting research in Antarctica. She reports on her work and life at the Station. Part 3.

Institutional
30.01.2026

Millions for muons: SLF participates in new NCCR

The SLF is using cosmic rays to investigate the snow cover as part of the new National Centre of Competence in Research "Muoniverse".

Institutional
27.01.2026
An audience is gathered in a lecture hall for the WSL-EAWAG Biodiversity Research Day. A sign in the foreground welcomes attendees, while a presentation is displayed on a screen in the background, indicating the event's focus on biodiversity research.

New Biodiversity Center of WSL and Eawag

WSL and Eawag join forces: the new WSL-Eawag Biodiversity Center links research on biodiversity on land and in water.

Logbook
16.01.2026
A vast, snowy landscape stretches toward the horizon under a clear blue sky. Snow-covered mountains are visible in the background. The bright, reflective surface of the snow enhances the sense of openness in this arctic environment.

Festivities and Unforeseen Challenges in the Field

Phd student Anja Mödl is currently conducting research in Antarctica. She reports on her work and life at the Station. Part 2.

Research
07.01.2026

ETH and SLF/CERC join forces in Surselva

ETH Zurich, the SLF and its research centre CERC are further expanding their partnership in the Surselva research and teaching forest.

Logbook
31.12.2025
Two people in orange expedition suits stand in front of the entrance to the United States Antarctic Programme Passenger Terminal in Christchurch.

Research on the Antarctic Riviera

Phd student Anja Mödl is currently conducting research in Antarctica. She reports on her work and life at the Station. Part 1.

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AvaBlog

Our experts analyze the avalanche situation.
8 February 2026

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