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Vegetation alpine floodplains
Regions and cities, Environment
Habitat protection pursuant to Article 18a of the Federal Act on the Protection of Nature and Cultural Heritage (NHG, SR 451) aims to ensure effective protection for areas of na...
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Assessment of the Chemical Water Status: Nitrite
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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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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Water temperature of rivers and streams
Regions and cities, Environment
The map provides an overview of current water temperatures in Switzerland's rivers.
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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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“Aquaprotect” areas of flooding: 500-year recurrence period
Regions and cities, Environment
The areas of flooding included in “Aquaprotect” take the form of a rough overview (prepared with the aid of basic methods) of areas of Switzerland that are susceptible to damage...
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Invasive alien plants - map of the potential area Robinia pseudoacacia
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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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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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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Air pollution by sulfur dioxide
Regions and cities, Environment
Higher concentrations of sulfur dioxide (SO₂) can have especially negative effects on the respiratory tract; asthmatics and people with chronic respiratory diseases are particul...
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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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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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Assessment of the Chemical Water Status: Total Phosphorus
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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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...
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Stocking map along watercourses and lakeshores
Regions and cities, Environment
For the creation of the Switzerland-wide map of riparian woody vegetation, calculations were made based on available geodata. Riparian woodland was defined as vegetation over 2....
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Invasive alien plants - map of the potential area Reynoutria japonica
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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Invasive alien plants - map of the potential area Prunus laurocerasus
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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Invasive alien plants - map of the potential area Bunias orientalis
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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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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Assessment of the Chemical Water Status: Dissolved Organic Carbon (DOC)
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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Estimation of direct CO₂ emissions based on heat demand according to SIA...
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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Invasive alien plants - map of the potential area Ludwigia peploides
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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Invasive alien plants - map of the potential area Phytolacca americana
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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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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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...