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Reaches surveyed - cross section securing point
Regions and cities, Environment
The map shows the reaches of watercourses which are currently surveyed periodically under the leadership of the FOEN. They are usually surveyed every 10 years or after major flo...
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Database of cross sections (CS) - surveyed sections
Regions and cities, Environment
The map shows the reaches of watercourses which are currently surveyed periodically under the leadership of the FOEN. They are usually surveyed every 10 years or after major flo...
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- WMS
- WMTS
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Planimetric control Points LFP1 (National Survey)
Regions and cities, Environment
All spatial data is based on measurement points. It is recommended to use the so-called fixed control points for all technical works which need reliable and accurate position me...
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National Gravity Network
Regions and cities, Environment
Current base stations of the national gravity network. These stations are observed regularly and serve as reference Points for gravimetric projects.The backbone of this network ...
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Height control points HFP1 (National Survey)
Regions and cities, Environment
All spatial data is based on measurement points. It is recommended to use the so-called fixed control points for all technical works which need reliable and accurate position me...
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- HTML
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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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Windstorm: Dynamic Pressure 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...
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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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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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Windstorm: Gusts 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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- WMS
- WMTS
- HTML
- API
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Windstorm: Dynamic Pressure at return period 300 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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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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Windstorm: Gusts at return period 300 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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- WMS
- WMTS
- HTML
- API
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Balance areas (catchment areas) HADES
Regions and cities, Environment
The balance areas form the middle layer of the system of catchment areas that describe Switzerland’s hydrographical structure (Hydrological Atlas of Switzerland, HADES). They ar...
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Windstorm: Gusts 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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- WMS
- WMTS
- HTML
- API
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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 runoff (m³/s) and flow regime types for the river network of Switzerland
Regions and cities, Environment
For the entire Swiss river network natural runoff (m³/s) values (monthly and annual means) have been modeled and the flow regime types determined. «MQ-GWN-CH» constitutes a data...
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- WMTS
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Estimation of direct CO₂ emissions based on heat demand according to SIA stan...
Regions and cities, Environment
The Swiss building stock is responsible for around a quarter of CO2 emissions. Reductions in this area are key to achieving the climate targets. </p><p> The map "CO2 Emissions B...
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National Air Pollution Monitoring Network NABEL: stations
Regions and cities, Environment
The National Air Pollution Monitoring Network (NABEL) monitors air quality at 16 different locations in Switzerland. The monitoring stations are spread over the entire country a...
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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...
- SERVICE
- WMS
- WMTS
- HTML
- API
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Swiss residual flow maps Return flows
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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Hydrogeological map of Switzerland 1:100000
Regions and cities, Environment
Published by the Federal Office for the Environment FOEN, the specialist office of the Swiss Geological Survey responsible for hydrogeology.The hydrogeological map 1:100,000 sho...
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