There is scientific evidence that climate change is likely to induce more frequent or intense weather extremes in the Alps with compound and cascading effects on the environment, humans and the economy. The X-RISK-CC project helps risk managers and policy makers across the Alpine Space in addressing the risks related to these extremes in the context of climate change.

The understanding of current and future weather extremes is essential for risk management. X-RISK-CC provides a WebGIS tool for accessing and visualizing current and future characteristics of key weather extremes in the Alpine region, including compound extremes.

The X-RISK-CC WebGIS offers information on intensity and frequency for the following extremes for the entire Alpine Space:

• Extreme precipitation

• Extreme wind speed

• Compound precipitation and wind speed extremes

• Heatwaves

• Drought

• Compound drought and heatwave events

The user can select among a list of precalculated extreme indices and display them on the map for current climate and as changes under future warming levels. By clicking on the map, the user can retrieve aggregated information for the NUTS3 level including a summary table of projected changes. All data can be downloaded as NetCDF or GeoJSON under the CC-BY 4.0 license (details on the WebGIS functionalities are reported in the Tutorial section).

The WebGIS platform is complemented by a Digital Library providing access to additional documentation complementing the information displayed on the WebGIS. It includes:

• a detailed description of calculated climate indices and usage recommendations

• five pilot reports describing the analyses on past and future weather extremes in the X-RISK-CC pilot areas

• the AS report providing an overview of the main change patterns of future weather extremes across the Alpine region

• a glossary

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X-RISK-CC is the result of a fruitful partnership of:

• Eurac Research - project coordinator (Italy)

• GeoSphere Austria (Austria)

• The Slovenian Environmental Agency (Slovenia)

• The Technical University of Munich (Germany)

• The Environment Agency Austria (Austria)

• The Civil Protection Agency of the Autonomous Province of Bolzano (Italy)

• The Autonomous Province of Trento (Italy)

• The Development Agency Sora (Slovenia)

• The Forest-technical service for torrent and avalanche control Tyrol (Austria)

• Auvergne Rhone-Alpes Energy Environment Agency (France)

The X-RISK-CC project was funded by Interreg Alpine Space Programme 2021–2027 X-RISK-CC -Alpine Space Programme.