Warnings and alerts are important in order to keep flood damage as small as possible. These are based on, among other things, forecasts of discharge rates and lake water levels. In order to issue warnings at the right location, the spatial resolution of hydrological forecasts must be as high as possible. It is therefore desirable to receive hydrological forecasts from as many gauging stations as possible along the larger waters of Switzerland.
Since 2011, the Federal Office for the Environment (FOEN) has a statutory obligation to warn the population and the authorities of flood events. It is thus working to provide hydrological forecasts for the entire territory of Switzerland in the future.
The FOEN currently publishes hydrological forecasts on its home page for 35 stations. Since plans to publish forecasts for 51 stations are in the works, the state can still not be rated as positive. Forecasts for water level monitoring stations in Engadin as well as at all large lakes will follow by mid 2021. In addition, several projects are underway to improve the accuracy of hydrological forecasts. The development in recent years has been too slow, which is why it is rated as unsatisfactory.
- Related indicators
- Flood events
Internationally there is no comparable indicator.
The number of stations producing hydrological forecasts published on the FOEN home page is taken as indicator.
|Targeted trend||Initial value||Final value||Deviation from theoretical path in%||Observed trend||Assessment|
|51 in 2021||2005||2019||71.76%||Towards theoretical path||unsatisfactory|