Indicator water

Discharge forecasts

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.

Assessment of the state
good good
Assessment of the trend
positive positive
Goal by 2023 2023: 51 Number of stations with published forecasts 2023: 51 Number of stations with published forecasts 2022: 38 Number of stations with published forecasts 2021: 38 Number of stations with published forecasts 2020: 38 Number of stations with published forecasts 2019: 35 Number of stations with published forecasts 2018: 33 Number of stations with published forecasts 2017: 33 Number of stations with published forecasts 2016: 30 Number of stations with published forecasts 2015: 29 Number of stations with published forecasts 2014: 28 Number of stations with published forecasts 2013: 26 Number of stations with published forecasts 2012: 26 Number of stations with published forecasts 2011: 26 Number of stations with published forecasts 2010: 8 Number of stations with published forecasts 2009: 8 Number of stations with published forecasts 2008: 8 Number of stations with published forecasts 2007: 8 Number of stations with published forecasts 2006: 8 Number of stations with published forecasts 2005: 8
Hydrological forecasts published on the FOEN homepage

Data for the graph: Excel
Source: FOEN
Hydrological forecasts published on the FOEN homepage

Source: FOEN
Comment

Since 2011, the Federal Office for the Environment (FOEN) has a statutory obligation to warn the population and the authorities of flood events. In recent years, it has been working on providing hydrological forecasts for the entire territory of Switzerland. Since July 2023, hydrological forecasts for all major water bodies have been published on the FOEN website. There are 51 stations in total. The goal has thus been achieved. It cannot be ruled out that minor adjustments will be made in the coming years.

International comparison

Internationally there is no comparable indicator.

Method

The number of stations producing hydrological forecasts published on the FOEN home page is taken as indicator.

Basis for assessment of the trend
Targeted trend Initial value Final value Approach to the theoretical path in % Observed trend Assessment
51 in 2023 2005 2023 100.00% Corresponds to the theoretical path positive
 
Last updated on: 05.02.2024

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