Last updated
October 30, 2014
Terms of use
Open use. Must provide the source. Use for commercial purposes requires permission of the data owner.


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 percentiles are calculated every month based on the "long term series" of hourly average measurements. The hourly averages from the start of measurements to date are compiled separately for each month, The percentile defines what proportion of the data is higher or lower than a specific limit. A flow at the 95% percentile means that 95% of the flows measured in the month in question are below that threshold (only 5% are above it).


Additional information

Issued date
October 30, 2014
Modified date
Bundesamt für Umwelt / Abteilung Hydrologie
Contact points
  • English
  • German
  • French
  • Italian
Further information
Landing page
Temporal coverage
Spatial coverage
Update interval
Metadata Access
API (JSON) Download XML

Got questions?

Ask the publisher directly