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Topographical Map (Dufour Map)
Regions and cities, Environment
The first official map of Switzerland. First issued between 1844 and 1864, updated up to 1939. 25 sheets. Map format: 70 x 48 cm = 3360 km2. Representation of the terrain: Shade...
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National maps of Switzerland, winter representation
Regions and cities, Environment
The winter national map is a derivation of the topographical national maps of Switzerland with detailed depictions of traffic, settlement areas, terrain, bodies of water and veg...
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National Map 1:1 million (grey)
Regions and cities, Environment
The National Map 1:1 million (grey) is a small-scale topographic map giving an overview of Central Europe: Switzerland and its neighbours from Lyons to Salzburg and from Strasbo...
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Gewässerkataster
Regions and cities, Environment
Der Gewässerkataster beinhaltet die Fliessgewässer, die stehenden Gewässer und das Hochwasserprofil beim Bodensee und Untersee. Bei den Fliessgewässern sind die räumlicher Lage ...
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National Long-Term Surveillance of Swiss Rivers
Regions and cities, Environment
The National River Monitoring and Survey Programme (NADUF) tracks the concentrations of substances occurring in selected Swiss watercourses. NADUF, launched in 1972, is a projec...
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Flood alert map
Regions and cities, Environment
The flood alert map shows the current flood danger level (1 to 5) for all and for the regions in relation to small and medium-sized rivers. The rivers of national interest are d...
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Hydrological study areas
Regions and cities, Environment
Since 1957 the hydrology division of the FOEN has operated a network of hydrological study areas aimed at observing long-term changes in the water regime within Switzerland’s mo...
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Diffuse total nitrogen inputs into waters, modelled values
Regions and cities, Environment
Nitrogen inputs into waters represent an undesirable pollution load. Under the Convention for the Protection of the Marine Environment of the North-East Atlantic (OSPAR), Switze...
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NAQUA-QUANT Monitoring sites (NAQUA National groundwater monitoring)
Regions and cities, Environment
Groundwater is the result of the percolation of rainfall and the infiltration of river water. Groundwater levels and spring discharges therefore respond – though possibly with a...
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Database of total bedload (federal government)
Regions and cities, Environment
A bedload transport database for surface waters throughout Switzerland. Following the devastating events of the summer of 1987, which caused major damage in many regions of Swit...
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Gauging stations for hydrological study areas
Regions and cities, Environment
Since 1957 the hydrology division of the FOEN has operated a network of hydrological study areas aimed at observing long-term changes in the water regime within Switzerland’s mo...
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Mean runoff (m³/s) and flow regime types for the river network of Switzerland
Regions and cities, Environment
For the entire Swiss river network natural runoff (m³/s) values (monthly and annual means) have been modeled and the flow regime types determined. «MQ-GWN-CH» constitutes a data...