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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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Catchment units in karst regions
Regions and cities, Environment
The Karst catchment units layer consists of the unit areas from which similar groundwater flow behaviour towards the karst spring can be expected. In particular, it allows for t...
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Map of seismic subsoil categories according to the standard SIA 261
Regions and cities, Environment
The site class is a required indication to determine the seismic action for a structure according to the building code SIA 261. The maps of site classes are indicative maps and ...
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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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HQStat flood statistics
Regions and cities, Environment
Data on flood events is managed and statistically evaluated by the FOEN; the findings are made available in the form of result sheets. A systematic statistical evaluation of flo...
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Cantonal & private gauging stations (HADES 5.1.2)
Regions and cities, Environment
This set of data represents the locations of hydrometric gauging stations belonging to cantons (data source: “KANTON”) and private owners (data source: “HADES”). The data was co...
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Protected areas in the civilian air navigation obstacles publication - Game Reserves
Regions and cities, Transport
Under Art. 19 of the Off-Airport Landing Ordinance (AuLaV; SR 748.132.3), protected areas comprise national parks, raised and transition bogs, water and migratory bird reserves,...
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Federal Inventory of Mire Landscapes of Particular Beauty and National Significance
Regions and cities, Environment
Mire landscapes are essentially semi-natural landscapes shaped by mires that are also home to other noteworthy natural and cultural elements. They are the last remaining habitat...
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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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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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Current drought situation in Switzerland
Regions and cities, Environment
The map shows the combined drought index for each region. This index summarises in one value the various factors affecting drought: precipitation, modelled soil moisture and dis...
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Windstorm: Dynamic Pressure at return period 30 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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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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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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Windstorm: Dynamic Pressure 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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Topographical catchment areas of Swiss waterbodies 40 km²
Regions and cities, Environment
The "40 km² catchment areas" data set is one of four possible aggregation levels for the "Topographical catchment areas of Swiss waterbodies" geodata set. It consists of a compr...
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Amphibian migration conflicting with traffic
Regions and cities, Environment
Since the mid-1950s, the number of amphibians being killed on roads has increased dramatically. Every year, hundreds of thousands of amphibians cross roads in Switzerland during...
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Assessment of the Biological Water Status: Macrozoobenthos
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 stati...
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Assessment of the Chemical Water Status: Ammonium
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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Assessment of the Biological Water Status: Diatoms
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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Ecomorphology Level F - Structures
Regions and cities, Environment
To enable surface waters to be fully protected, their status must be known. The Modular Stepwise Procedure provides the framework for standardized investigation and assessment o...
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Habitat Map of Switzerland
Regions and cities, Environment
The dataset maps Swiss habitats according to the TypoCH classification ('Lebensräume der Schweiz', Delarze et al. 2015) area-wide, to at least the second level of detail of the ...
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Biogeographical regions of Switzerland (CH)
Regions and cities, Environment
The basis for establishing the biogeographical regions (in 6 or 12 classes) were the homogeneous surfaces of the river basins, where relevant and adequately extensive species in...
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Ecomorphology Level F – Drop structures
Regions and cities, Environment
To enable surface waters to be fully protected, their status must be known. The Modular Stepwise Procedure provides the framework for standardized investigation and assessment o...
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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...