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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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Vegetation alpine floodplains
Regions and cities, Environment
Der Biotopschutz gemäss Artikel 18a des Natur- und Heimatschutzgesetzes NHG (SR 451) hat einen wirksamen Schutz der national bedeutenden Flächen der wichtigsten Biotoptypen zum ...
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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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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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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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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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Catchments in karst regions
Regions and cities, Environment
The Karst catchments layer depicts those areas where seepage water flows into a specific spring and feeds it. Catchments can occasionally overlap, namely where sections of them ...
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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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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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Alpine Floodplains outside of the federal inventary
Regions and cities, Environment
As past of the systematic inventory of flood plains, properties that were until recently not evaluated as having national significance will also be included in the federal inven...
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HWGWP flood crest gauge
Regions and cities, Environment
This set of data depicts the locations of the federal flood measuring stations, known as "Hochwassergrenzwertpegel". The data was collected in 2005; readings are no longer being...
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Transition of reference frames LV03 - LV95: Triangular network (CHENyx06 and ...
Regions and cities, Environment
The triangular network of the national survey (FINELTRA-LV) was completed in the 90's and has permitted to transform geodata from LV03 to LV95 and vice versa with an accuracy of...
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Transition of reference frames LV03 - LV95: Displacement vectors at TSP1 poin...
Regions and cities, Environment
The displacement vectors of the pass points (TSP2) point from LV03 to LV95 and therefore in the direction and absolute value of the local rectification (infobox).
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Cadastral Surveying (OpenData)
Regions and cities, Environment
Die amtliche Vermessung (AV) beschreibt die Lage, die Form und den Inhalt eines Grundstückes. Die digitalen AV-Daten sind in mehreren thematischen Informationsebenen gegliedert,...
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Declination Map of Switzerland 1:500000
Regions and cities, Environment
Geomagnetic maps are the result of measurements of total intensity, declination and inclination. The declination describes the angle formed between magnetic and geographic north...
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Topographical catchment areas of Swiss waterbodies: Area outlets
Regions and cities, Environment
The "Area outlets" data set is part of the "Topographical catchment areas of Swiss waterbodies" geodata set. It consists of point objects that represent the area outlets for a p...
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Generalised background map for the representation of hydrological data
Regions and cities, Environment
In addition to the outline of Switzerland, the generalised background map displays a simplified, reduced watercourse network and some selected cities for improved orientation at...
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Topographical catchment areas of Swiss waterbodies 2 km²
Regions and cities, Environment
The data set ‹sub-basins 2 km²› is the central element of the geodata set. It is made up of a comprehensive mosaic of over 22,000 topographically defined sub-basin areas that ca...
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Swiss water topographical catchment areas: Main river section
Regions and cities, Environment
The data set “Main river section” is part of the geo dataset “Swiss water topographical catchment areas”. The main river in a catchment area is the body of water that leaves t...
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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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Distribution of ibex colonies
Agriculture, fisheries, forestry and food, Regions and cities, Environment
After being resettled in 1906, Alpine (Capra) ibex live in colonies of varying sizes throughout the Alpine region and in the Jura mountains. Because the growth of stocks in spec...
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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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Water status monitoring stations CH
Regions and cities, Environment
The data set represents the monitoring stations where the water status is recorded. The cantons are responsible for water protection enforcement, as they are for other environme...
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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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Hydrological study areas
Regions and cities, Environment
Since 1957 the hydrology division of the FOEN has operated a network of hydrological study areas aimed at observing long-term changes in the water regime within Switzerland’s mo...
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