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Springs and swallow holes in karst regions
Regions and cities, Environment
The Karst springs and swallow holes layer shows the main points where groundwater emerges from the karst system as well as important infiltration points. Distinctions are made b...
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Base areas (catchment areas) HADES
Regions and cities, Environment
The base areas form the lowest layer of the system of catchment areas that describe Switzerland’s hydrographical structure (Hydrological Atlas of Switzerland, HADES). As many un...
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Basis for determining Q347 flow rate
Regions and cities, Environment
The Water Protection Act specifies how appropriate residual flows can be determined. This applies to new water withdrawals and also to existing withdrawals for which concessions...
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River basins (catchment areas)
Regions and cities, Environment
The river basins form the uppermost aggregation level for the "Topographical catchment areas of Swiss waterbodies" geodata set. The large areas with a surface area of usually mo...
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Amphibians appendix 3
Regions and cities, Environment
There are currently 19 different amphibian species that live in Switzerland, and nearly all of them are included in the Red List of Threatened Species. The areas that contain we...
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Federal Inventory of Dry Grasslands of National Importance
Regions and cities, Environment
Dry grasslands are habitats with a wide variety of species that are marked by agricultural use. In accordance with the Federal Act on Protecting Nature and Cultural Heritage, th...
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FOEN basic monitoring network for surfaces water
Regions and cities, Environment
The data show the locations of the stations in the basic monitoring network of the Hydrology Division of the FOEN. It includes all stations currently listed on the FOEN’s home p...
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Assessment of the Chemical Water Status: Nitrate
Regions and cities, Environment
Within the National Surface Water Quality Monitoring Programme (NAWA), water quality is recorded jointly by the federal and cantonal authorities at around 100 monitoring station...
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Windstorm: Gusts at return period 300 years
Regions and cities, Environment
The Windstorm Risk Maps show peak wind gusts and their dynamic pressure and the corresponding uncertainties. The maps provide a country-wide basis for the estimation of the regi...
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Windstorm: Gusts at return period 50 years
Regions and cities, Environment
The Windstorm Risk Maps show peak wind gusts and their dynamic pressure and the corresponding uncertainties. The maps provide a country-wide basis for the estimation of the regi...
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Windstorm: Dynamic Pressure at return period 300 years
Regions and cities, Environment
The Windstorm Risk Maps show peak wind gusts and their dynamic pressure and the corresponding uncertainties. The maps provide a country-wide basis for the estimation of the regi...
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Windstorm: Gusts at return period 100 years
Regions and cities, Environment
The Windstorm Risk Maps show peak wind gusts and their dynamic pressure and the corresponding uncertainties. The maps provide a country-wide basis for the estimation of the regi...
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Windstorm: Dynamic Pressure at return period 100 years
Regions and cities, Environment
The Windstorm Risk Maps show peak wind gusts and their dynamic pressure and the corresponding uncertainties. The maps provide a country-wide basis for the estimation of the regi...
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Emerald sites
Regions and cities, Environment
The Emerald Network is a Europeanwide network that seeks to protect endangered animal and plant species and natural habitats listed in the Bern Convention. To obtain Emerald sta...
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Bathing water quality
Regions and cities, Environment
Assessment of bathing water quality is carried out on the basis of cantonal water monitoring data relating to the hygienic parameters E. coli and intestinal enterococci (faecal ...
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Assessment of the Biological Water Status: Macrophytes
Regions and cities, Environment
Within the National Surface Water Quality Monitoring Programme (NAWA), water quality is recorded jointly by the federal and cantonal authorities at around 100 monitoring station...
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Groundwater bodies of Switzerland
Regions and cities, Environment
The groundwater bodies layer shows a simplified and comprehensive breakdown of hydrogeological overview units for Switzerland. The groundwater bodies here have not been develope...
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Swiss residual flow maps Supply
Regions and cities, Environment
The Federal Act of 24 January 1991 on the Protection of Water against Pollution (LPEP) and its provisions on residual flows came into force on November 1, 1992 in Kraft getreten...
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Underground flow paths in karst regions
Regions and cities, Environment
The Underground flow paths layer indicates the probable direction taken by the groundwater in karst regions within the catchments towards the relevant spring. These interpretati...
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Extent of groundwater resources in karst regions
Regions and cities, Environment
The Karst water resources layer shows the extent of the water-saturated zone of a karstified aquifer projected to the surface. It is determined by the karst water level and ther...
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Protected areas in the civilian air navigation obstacles - Other protected areas
Regions and cities, Transport
Under Art. 19 of the Off-Aerodrome Landing Ordinance (OALO; SR 748.132.3), protected areas comprise national parks, raised and transition bogs, water and migratory bird reserves...
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Strahler stream order
Regions and cities, Environment
The stream order according to Strahler specifies the degree of branching of a hydrographic network. It forms the basis for morphological studies and descriptions of a watercours...
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Forest fire prevention measures of the cantons
Agriculture, fisheries, forestry and food, Regions and cities, Environment
Contains the forest fire prevention measures currently in force in the cantons.
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Map of past earthquakes in Switzerland and neighbouring regions
Regions and cities, Environment
ECOS09 is the earthquake catalogue of Switzerland and bordering regions. It integrates the following sources: - Macroseismic Earthquake Catalogue of Switzerland (MECOS 02) with ...
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Perimeters of existing spectral micro-zoning studies
Regions and cities, Environment
Perimeters for which a spectral seismic micro-zonation study is available with links to further information. The amplification of seismic waves through the local geology is mode...