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Relative air humidity in the year, period 1981-2010
Regions and cities, Environment
The map shows the mean relative air humidity at 13:30 in the year for the period 1981-2010. For the area-wide calculation the climate stations of MeteoSwiss served as support po...
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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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Geochemical soil atlas of Switzerland: Chromium
Regions and cities, Environment
Interpolierte Chrom-Konzentrationen (mg/kg Feinerde) in den Oberböden (0–20 cm) der Schweiz. Für die Ordinary Kriging Interpolationen (1 km x 1 km) wurden Messdaten von insgesam...
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Relative air humidity in July, period 1981-2010
Regions and cities, Environment
The map shows the mean relative air humidity at 13:30 in July for the period 1981-2010. For the area-wide calculation the climate stations of MeteoSwiss served as support points...
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Frequency of Föhn in the year, period variable (maximum 1969-2013)
Regions and cities, Environment
The map shows the average frequency (in %) of the number of Föhn hours per year. A value of e.g. 12 % means that on 44 days in the year the Föhn blows, whereby the duration of t...
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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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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...
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Assessment of the Biological Water Status: Fish
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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Interregional wildlife corridor
Regions and cities, Environment
First, known wildlife corridors were recorded from existing data at the cantonal level, and potential corridors were detected by GIS and then divided into wildlife corridors of ...
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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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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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Tranquillity Map
Regions and cities, Environment
The "Tranquillity Map of the Swiss Plateau" illustrates where areas of near-natural character and low noise pollution still exist near large settlements within the Swiss Plateau...
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“Aquaprotect” areas of flooding: 50-year recurrence period
Regions and cities, Environment
The areas of flooding included in “Aquaprotect” take the form of a rough overview (prepared with the aid of basic methods) of areas of Switzerland that are susceptible to damage...
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“Aquaprotect” areas of flooding: 250-year recurrence period
Regions and cities, Environment
The areas of flooding included in “Aquaprotect” take the form of a rough overview (prepared with the aid of basic methods) of areas of Switzerland that are susceptible to damage...
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“Aquaprotect” areas of flooding: 500-year recurrence period
Regions and cities, Environment
The areas of flooding included in “Aquaprotect” take the form of a rough overview (prepared with the aid of basic methods) of areas of Switzerland that are susceptible to damage...
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Aquaprotect” areas of flooding: 100-year recurrence period
Regions and cities, Environment
The areas of flooding included in “Aquaprotect” take the form of a rough overview (prepared with the aid of basic methods) of areas of Switzerland that are susceptible to damage...
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Crayfish plague – Findings in Switzerland
Agriculture, fisheries, forestry and food, Regions and cities, Environment
Proof of the crayfish plague in Switzerland: Geo-referenced locations of populations with test results. The most cataclysmic disease for the European species is the crayfish pla...
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Wildlife network system
Regions and cities, Environment
First, known wildlife corridors were recorded from existing data at the cantonal level, and potential corridors were detected by GIS and then divided into wildlife corridors of ...
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Biosphere reserves
Regions and cities, Environment
Biosphere reserves are not only used to protect and preserve ecosystems, but also for environmental research, environmentally-friendly land use and environmental education. They...
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Inventory of quaking bogs
Regions and cities, Environment
The inventory of quaking bogs in Switzerland contains discovered primary quaking bogs of a specific minimum size with transition and raised bog characteristics (83 bogs). This i...
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Geochemical soil atlas of Switzerland: Copper
Regions and cities, Environment
Interpolierte Kupfer-Konzentrationen (mg/kg Feinerde) in den Oberböden (0–20 cm) der Schweiz. Für die Ordinary Kriging Interpolationen (1 km x 1 km) wurden Messdaten von insgesa...
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Wildlife Passages
Regions and cities, Environment
In einer ersten Phase hat das BAFU anhand der verfügbaren Daten die Wildtierpassagen auf dem Nationalstrassen- und Schienennetz erfasst. Berücksichtigt wurden Kunstbauten, die s...
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Windstorm
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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Ammonia Concentration
Regions and cities, Environment
Ammonia can harm plants and animals and contributes to elevated nitrogen deposition. Critical levels for ammonia are established in the framework of the UNECE convention on long...
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Invasive alien plants - map of the potential area Heracleum mantegazzianum
Agriculture, fisheries, forestry and food, Regions and cities, Environment
The set of invasive alien plants shows the maps of the potential areas of 56 alien plants species present in Switzerland as well as some invasive species present in neighboring ...