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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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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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Mean daily temperature high in July, period 1961-1990
Regions and cities, Environment
For the area-wide calculation, measured values from MeteoSwiss measuring stations in the period 1961-1990 were used. From the daily temperature curve, the highest temperature is...
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National Ecological Network (REN), forest area
Regions and cities, Environment
The National Ecological Network (REN) was developed in close collaboration with cantonal authorities for the protec-tion of nature and landscapes. It issues a technical/sciencif...
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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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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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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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Invasive alien plants - map of the potential area N.N.
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 ...
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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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Invasive alien plants - map of the potential area N.N.
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 ...
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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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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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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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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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Geochemical soil atlas of Switzerland: Calcium
Regions and cities, Environment
Interpolierte Calcium-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 insges...
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Floodplains outside of the federal inventary
Regions and cities, Environment
Of all the floodplains mapped throughout Switzerland, the objects which have not been included in the federal inventory have been compiled in this dataset. A distinction has bee...
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Seismic zones according to the SIA 261 standard
Regions and cities, Environment
Map of seismic zones from the SIA 261 Standard “Actions on Structures” (2020). A design value is specified for the horizontal ground acceleration agd (in m/s2). This design valu...
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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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Hydrogeological sketch
Regions and cities, Environment
Groundwater is present in all subterranean rock. This map gives a hydrogeological overview of Switzerland and its various types of aquifers. Important unconsolidated aquifers ar...
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Mapping of Floodplains of National Importance
Agriculture, fisheries, forestry and food, Regions and cities, Environment
In order to give cantons the option of taking the protection of floodplains of probable national importance into their own hands as quickly as possible, the Swiss Agency for the...
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Air pollution by nitrogen dioxide
Regions and cities, Environment
The term "nitrogen oxides" (NOx) embraces nitrogen dioxide (NO₂) and nitrogen monoxide (NO). Nitrogen oxides form in the combustion of motor and heating fuels, especially when c...
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Tranquillity Areas
Regions and cities, Environment
Based on the "Tranquillity Map of the Swiss Plateau" and its calculated "tranquillity" values, certain recreational areas were derived. For this purpose, areas that did not fall...
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Air pollution by Ozone
Regions and cities, Environment
Ground-level ozone has negative impacts on human health and vegetation. High levels in particular lead to irritation of the respiratory tract and lung tissue. In plants, high oz...