SNOW 2025

For many decades, and even centuries, various locations around the world have implemented mitigation measures to counter snow avalanches and other rapid mass movements in steep terrain. Advancements in knowledge and equipment have enabled the construction of significantly larger and more complex structures than before. These measures are primarily intended to protect human lives and infrastructure, like roads and communication networks, but they also influence people in various other ways. Large structures typically have a notable impact on the environment, either in the avalanche starting zones or in the run-out zones. Often, run-out zone structures must be erected near densely populated areas; they can be imposing and may even alter the local climate and snow accumulation near them.

Relocating communities involves making difficult choices, as individuals must leave their established homes for new locations. A key question arises: why demolish an existing developed area instead of protecting it? The value of vulnerable buildings often comes into question. How do mitigation measures impact people’s daily lives? Do residents trust these measures and feel secure living nearby? How do these mitigation measures influence the value of protected buildings and the area’s future development? Does a poor avalanche reputation affect the community and its future growth? In recent years, travel has surged, making the demand for safe transportation a global priority. Avalanches pose a significant threat to roads and railways in mountainous regions, resulting in numerous fatalities each year. Traffic disruptions and rerouting also lead to substantial financial losses annually.

The symposium covers four distinct themes: Risk Management, Society and Environment, Planning, Design, Construction, and Management of Protective Measures, and Observations and Simulations of Avalanches. The aim is to present the current state of knowledge, provide insights into future developments, and broaden the perspectives of participants from each group. The symposium encourages the exchange of experiences and ideas, fostering collaboration to enhance life in regions at risk of avalanches.

The organizing committee welcomes you all to Ísafjörður in September 2025.

Árni Jónsson, chairman of the organising committee.