Measuring Networks

The data shown on the portal comes from various surveys conducted by the Federal Office for the Environment FOEN. The FOEN operates and coordinates several monitoring networks on the topic of water. Long-term measurements at permanent gauging stations and individual readings at temporary sites enable the FOEN to keep track of water flow and quality in Switzerland’s rivers, lakes and groundwater, as well as water levels.

Detailed information on the individual monitoring networks available on the FOEN website: Water monitoring networks

Questions and answers on published data and links to the data references

Numerous cantons also operate hydrological monitoring networks: Monitoring networks of cantonal agencies

A summary of current water body monitoring in Switzerland is also available in a special report on water bodies in Switzerland (available in DE and FR): «Gewässer in der Schweiz» (p. 14 ff.).

Other data portals

Topic Water at Federal maps of Switzerland's water bodies

Hydrological Atlas of Switzerland HADES

NCCS: Hydro-CH2018 hydrological scenarios

Natural Hazards Joint Information Platform GIN (portal for authorities)