Licences & sources
CoolingSpots is built on open-source software and open data. Thanks to the following projects and data sources.
Software (open source)
- Angular - MIT
- MapLibre GL JS - BSD-3-Clause
- Protomaps Basemaps - BSD-3-Clause
- PMTiles - BSD-3-Clause
- Transloco - MIT
- Angular CDK - MIT
- RxJS - Apache-2.0
- Hanken Grotesk - UI typeface (OFL-1.1)
Full list of all bundled software licences
Data & maps
- OpenStreetMap - Map and place data (ODbL)
- Protomaps - Map background (tiles)
- MET Norway - Weather data (NLOD 2.0 / CC-BY 4.0)
- ESA WorldCover 10 m 2021 - Canopy density / land cover (CC-BY 4.0)
- Copernicus DEM - Terrain model (elevation/slope)
- swisstopo SWISSIMAGE - Satellite imagery Switzerland
- EOxCloudless by EOX IT Services GmbH - Satellite imagery global (CC-BY 4.0)
- MeteoAlarm (EUMETNET) - Official weather warnings (for Switzerland: MeteoSwiss), CC-BY 4.0 equivalent
The map shows official heat warnings for Switzerland only.
OpenStreetMap data on the map, as of: Switzerland 3 September 2026, France 18 September 2026, Italy 20 September 2026, Germany 20 September 2026, Austria 16 September 2026.
produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved
EOxCloudless https://cloudless.eox.at by EOX IT Services GmbH (Contains modified Copernicus Sentinel data 2017)
Time delays between this website and the www.meteoalarm.org website are possible. For the most up-to-date awareness information as published by the participating National Meteorological and Hydrological Services, please refer to www.meteoalarm.org.
Our data
The CoolingSpots spot dataset (map tiles and search index) is derived from OpenStreetMap, © OpenStreetMap contributors, and is available under the ODbL 1.0 (Open Database License).
The curated entries on the map (partner and community layer, file curated-spots.json) are not derived from OpenStreetMap: they are editorial text and submitted suggestions. We voluntarily place them under the following two licences: