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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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Water temperature monitoring stations
Regions and cities, Environment
The data set represents the locations of the stations in the water temperature monitoring network of the Hydrology Department of the Federal Office for the Environment (FOEN). I...
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Areas of storm damage caused by “Vivian” in 1990
Regions and cities, Environment
Federal government inventory of damage caused by “Vivian” in February 1990: database of areas of total damage in forests. Defined criteria and conditions: Area of total damage: ...
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Ecomorphology Level F – River reaches
Regions and cities, Environment
To enable watercourses to be fully protected, their status must be known. The Modular Stepwise Procedure provides the framework for standardised investigation and assessment of ...
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Monthly rainfall erosivity (R-factor) maps of Switzerland in MJ mm ha⁻¹ h⁻¹...
Regions and cities, Environment
<p>Monthly rainfall erosivity maps (R-factor maps) of Switzerland with a spatial resolution of 100 m. The maps show the spatial and seasonal variability of rainfall erosivity in...
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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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Federal Inventory of Fens of National Importance
Regions and cities, Environment
Fens are vestiges of earlier natural and cultural landscapes and are in sharp decline. They are home to highly-adapted symbiotic communities of plants and animals that include a...
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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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Modelled altitudinal vegetation belts for 1975
Agriculture, fisheries, forestry and food, Regions and cities, Environment
This map shows the altitudinal belts of forest vegetation in Switzerland for the period 1961-1990. The following altitudinal vegetation belts only occur in the southern valleys:...
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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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Monthly rainfall erosivity (R-factor) maps of Switzerland in MJ mm ha⁻¹ h⁻¹...
Regions and cities, Environment
<p>Monthly rainfall erosivity maps (R-factor maps) of Switzerland with a spatial resolution of 100 m. The maps show the spatial and seasonal variability of rainfall erosivity in...
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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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Grayling population of national importance: larva habitats
Regions and cities, Environment
The data on grayling populations of national importance includes four subproducts; the larva habitats layer includes the areas in which larva were monitored. The core data come ...
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Federal Inventory of Reserves for Waterbirds and Migratory Birds of...
Regions and cities, Environment
Switzerland is especially important as a wintering and resting site for various migratory waterbirds. As a result, in 1974 the Federal Council signed a convention on watercourse...
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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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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...
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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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Geochemical soil atlas of Switzerland: Sodium
Regions and cities, Environment
Interpolierte Natrium-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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Air pollution by particulate matter PM10
Regions and cities, Environment
"Particulate matter" (PM10) refers to particles less than 10 micrometres in diameter. These particles are formed during industrial and commercial production processes, combustio...
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Grayling population of national importance: distribution area
Regions and cities, Environment
The data on grayling populations of national im-portance includes four subproducts; the distribution area layer includes the sections of watercourses with 20 major grayling popu...
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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...