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  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    KM-I-6: Pumping station performance – case study

    The picture shows the pumping station Steinschleuse on the Eider river. A retaining wall with a bridge and a brick-built house are visible.

    … combined with a low gradient have a compelling impact on the water regime and the hydrological conditions in these lowland areas. In order to maintain or even improve … by the pumps is not solely dependent on the duration of its operation and the hydrological requirements. The water- and soil-related associations endeavour to … electricity cost is lower, regardless whether at that particular moment there is a hydrological requirement for operating the pumps. The water level of the watercourse …

  • KomPass: Article from 28.11.2023 | Last changed: 11.12.2024

    WW-I-4: Floodwater

    The picture shows a village – situated on the slope of a hill – inundated by floodwater. Some of the lower buildings and some lower floors of houses have been flooded.

    … for the reference period 1961-1990. The MHQ is calculated separately for the hydrological winter half-year (1st November of the previous year to 30th April) and … systematically or regularly. The distribution of floodwater days impacting the hydrological winter and summer seasons has so far not indicated a trend either. The … for the reference period 1961-1990. The MHQ is calculated separately for the hydrological winter half-year (1st November of the previous year to 30th April) and …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    KM-R-2: Land protection dykes without safety deficit – case study

    The picture shows an aerial view of a land protection dyke under construction. In the background, there are agricultural areas and houses as well as standing water visible.

    … thus reflects the current condition of land protection dykes with reference to the hydrological loads imposed by storm surges. At present, 81.7 % of land protection … was additionally categorised as unsafe. The strong decline in 2012 is due to the hydrological safety inspection in 2011 of land protection dykes based on a higher … thus reflects the current condition of land protection dykes with reference to the hydrological loads imposed by storm surges. At present, 81.7 % of land protection …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    KM-I-5: Change of flow direction

    The picture shows a river running through a flat landscape consisting of meadows and agricultural areas. The sea is visible in the background.

    … individual extreme events, the time series proceed subject to fluctuations. In the hydrological year of 1989 the gauging station Anklam witnessed – for the first … Baltic Sea coast with waves several metres high causing substantial damage. In the hydrological years of 2019 and 2020, with similar frequency, a backwater situation … individual extreme events, the time series proceed subject to fluctuations. In the hydrological year of 1989 the gauging station Anklam witnessed – for the first …

  • KomPass: Article from 28.11.2023 | Last changed: 11.12.2024

    WW-I-1: Terrestrially stored water

    The picture shows a section of a satellite photograph of the Earth. In the upper margin of the photograph is a radiant sun. On the Earth, clouds and a deep-blue ocean are visible.

    … result, it is now possible to compare also the water volumes calculated by means of hydrological models with the measurements obtained indirectly. The spatial … result, it is now possible to compare also the water volumes calculated by means of hydrological models with the measurements obtained indirectly. The spatial …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    VE-I-1 + 2: Flood closures and low water restrictions on the Rhine

    … shipping) Extended low-water phases have very severe impacts In meteorological and hydrological terms, 2018 was an extraordinary year which demonstrated how dependent … a trend that has been increasing significantly since 1997. … In meteorological and hydrological terms, 2018 was an extraordinary year which demonstrated how dependent …

  • Press release 35/2020 from 31.07.2020 | Last changed: 12.08.2020

    Rodent control measures are contaminating fish

    ein Rattenschatten an der Wand

    … and have a poisoning effect. A follow-on UBA project by the Federal Institute of Hydrology in collaboration with the Bavarian Environmental Protection Agency … is the result of a research project commissioned to the Federal Institute of Hydrology by the German Environment Agency. Associated content Publications …

  • Press release 16/2022 from 22.03.2022 | Last changed: 24.03.2022

    Groundwater is named water body type 2022

    Ein Foto in der Blauhöhle. Zu sehen Grundwasser und eine Person in einem Boot.

    … freshwater ecosystem in the world, performing important functions in the global hydrological cycle. For example, it is home to numerous groundwater organisms …

  • KomPass: Article from 28.11.2023 | Last changed: 20.09.2024

    Cluster Biological diversity

    In the foreground the picture shows a banded demoiselle which has landed on the blossom of a yellow waterbuttercup. The background of this picture is blurred.

    … peatlands rigorously, to strengthen their CO 2 sink function, and to improve their hydrological condition in such a way that they fulfil their potential as habitat for … peatlands rigorously, to strengthen their CO 2 sink function, and to improve their hydrological condition in such a way that they fulfil their potential as habitat for …

  • KomPass: Article from 28.11.2023 | Last changed: 08.12.2025

    Cluster Coastal and marine protection

    The picture shows a sectional view of a wild sea with waves crashing over projecting posts. The sky is tinged with orange and covered in dark clouds. Here and there rays of sunshine are breaking through the cloud cover.

    … the existing technical and protective facilities have to withstand increased hydrological loads. At the same time the intensity of utilisation and the damage … the existing technical and protective facilities have to withstand increased hydrological loads. At the same time the intensity of utilisation and the damage …