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Current drought hazard level
Regions and cities, Environment
The drought warning map shows the current drought hazard (issued at levels 1, 2 and 4) for all regions of Switzerland. The hazard level results from a weekly expert assessment o...
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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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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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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...
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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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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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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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Windstorm: Dynamic Pressure 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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Windstorm: Dynamic Pressure 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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Ecomorphology Level F - Structures
Regions and cities, Environment
To enable surface waters to be fully protected, their status must be known. The Modular Stepwise Procedure provides the framework for standardized investigation and assessment o...
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Ecomorphology Level F – Drop structures
Regions and cities, Environment
To enable surface waters to be fully protected, their status must be known. The Modular Stepwise Procedure provides the framework for standardized investigation and assessment o...
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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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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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Geochemical soil atlas of Switzerland: Molybdenum
Regions and cities, Environment
Interpolierte Element-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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Overland flow map
Regions and cities, Environment
The areas affected by overland flow were determined using a simplified method the over entire Switzerland and Liechtenstein. They were determined by modelling without any verifi...
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Invasive alien plants - map of the potential area Lonicera henryi
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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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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Forest mix rate NFI
Agriculture, fisheries, forestry and food, Regions and cities, Environment
Information on the degree of forest mix rate NFI is modelled using remote sensing methods. Based on the freely available Copernicus (ESA) Sentinel-1 and -2 satellite data (image...
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Swiss residual flow maps Supply
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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NQStat low-flow statistics
Regions and cities, Environment
A wide variety of parameters may be used to describe low-flow events. The FOEN Hydrology Division's low-flow statistics are based on the recommendations of the German Associatio...
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Protected areas in the civilian air navigation obstacles - Other protected areas
Regions and cities, Transport
Under Art. 19 of the Off-Aerodrome Landing Ordinance (OALO; SR 748.132.3), protected areas comprise national parks, raised and transition bogs, water and migratory bird reserves...
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Invasive alien plants - map of the potential area Senecio inaequidens
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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Protected areas in the civilian air navigation obstacles publication -...
Regions and cities, Transport
Under Art. 19 of the Off-Airport Landing Ordinance (AuLaV; SR 748.132.3), protected areas comprise national parks, raised and transition bogs, water and migratory bird reserves,...
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Protected areas in the civilian air navigation obstacles publication - Floodplains
Regions and cities, Transport
Under Art. 19 of the Off-Airport Landing Ordinance (AuLaV; SR 748.132.3), protected areas comprise national parks, raised and transition bogs, water and migratory bird reserves,...
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Mean runoff in the future - results from the Hydro-CH2018 project
Regions and cities, Environment
The map shows the percentage changes in summer runoff towards the end of the century (2070-2099) compared to the reference period (1981 - 2010) as calculated in the hydrological...