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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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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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Assessment of the Chemical Water Status: Ammonium
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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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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Assessment of the Chemical Water Status: Phosphate
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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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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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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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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Flood alert map
Regions and cities, Environment
The flood alert map shows the current flood danger level (1 to 5) for all and for the regions in relation to small and medium-sized rivers. The rivers of national interest are d...
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River Typology for Switzerland
Regions and cities, Environment
The typology of rivers groups the diversity of Swiss rivers according to abiotic, physiographic criteria, not considering anthropogenic impacts. They are a basis for assessment ...
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Assessment of the Chemical Water Status: Nitrate
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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Stations hydrological forecasts
Regions and cities, Environment
The map provides an overview of stations forecasted by FEWS.
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Assessment of the Biological Water Status: Macrophytes
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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Current drought situation in Switzerland
Regions and cities, Environment
The map shows the combined drought index for each region. This index summarises in one value the various factors affecting drought: precipitation, modelled soil moisture and dis...
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Assessment of the Biological Water Status: Fish
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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Numeric data from drought platform
Regions and cities, Environment
This dataset includes all numerical data published on the national drought platform. For all drought-related variables, historical time series are available since 1991 with mont...
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Assessment of the Biological Water Status: Diatoms
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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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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Comparison of discharge and water gauge data with hazard levels
Regions and cities, Environment
The map shows the current discharge at all the stations, as compared with flood hazard levels.
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General situation of rivers and lakes
Regions and cities, Environment
The map shows the current Swissriver discharges and lake water levels compared with the monthly percentiles of the long term hourly averages (expressed in percentiles). The perc...
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Flood alert map for small catchments
Regions and cities, Environment
The FOEN also issues information when a sharp rise in small and medium-sized river levels is expected locally. In these cases, it is impossible to say precisely which rivers wil...
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Potential use of lakes and rivers for heat extraction and heat discharge
Education, culture and sport, Energy, Regions and cities, Environment
Lakes and rivers provide a great yet largely untapped source of thermal energy. In Switzerland, this renewable source of energy source could be used for heating (heat extraction...