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    WW-I-4: Floodwater

    The bar chart WW-I-4 ’Floodwater’ shows – for the years of 1961 to 2021 – the number of floodwater days in the hydrological winter half-year (1st November of the previous year to 30th April) and in the hydrological summer half-year (1st May to 31st October) respectively, prevailing in the river basins of the Danube, Elbe, Rhine, Eider and Weser. The structure of the indicator is characterised by individual flood events which typically influence several river basins.

    … WW-I-4: Floodwater Source: Run-off measurement of federal states Download image (114.62 kB) The following contents contain this medium: WW-I-4: …

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    WW-I-1: Terrestrially stored water

    The line chart WW-I-1 ’Terrestrially stored water’ shows the deviations of the entire terrestrially stored water masses from the long-term mean for the months of the period 2002–2021 in millimetres. The time series is marked by distinct fluctuations. While there is still a tendency towards positive anomalies at the beginning of the 2000s, it is clear that in Germany, the terrestrially stored water masses have been decreasing substantially since the beginning of 2010.

    … stored water Source: ISDC/ GravIS – GeoForschungsZentrum (processing of GRACE data) Download image (132.16 kB) The following contents contain this medium: WW-I-1: …

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    GE-R-3: Information on pollen

    The illustration GE-R-3 ’Information on pollen’ contains a biaxial chart. The chart shows the number of subscribers to the pollen exposure risk index and the number of pollen diary users. The number of subscriptions to the pollen exposure risk index increased to roughly 19,000 from the year of 2008 to the middle of the 2010s. Up to 2014 only the Pollen app was included, from 2015 onwards the figures are summarised for subscriptions to the Pollen app and the ‘Husteblume’ app.

    … Information on pollen Source: DWD (pollen exposure risk index)/ PID (pollen diary) Download image (138.99 kB) The following contents contain this medium: GE-R-3: …

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    GE-I-1: Heat stress

    The illustration GE-I-1 ’Heat stress’ contains two lines indicating the number of hot days and the number of tropical nights respectively, in terms of the German area mean for the years from 1951 to 2021. Besides, the bar chart shows, for the years from 2005 to 2021, the mean number of days on which warnings were issued regarding major as well as extreme heat stress in the GWS warning districts. There is no significant trend discernible for the development of the number of days with heat warnings.

    … GE-I-1: Heat stress Source: DWD (Open-Data-Server) Download image (150.05 kB) The following contents contain this medium: GE-I-1: Heat …

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    HMP Birthday Calendar: April

    Photo of birch trees in bloom featuring the text: Dispose of used tissues via household waste – for the sake of the environment

    … should be disposed of in the household waste. Source: Тамара Андреева / Adobe Stock Download image (698.30 kB) The following contents contain this medium: Bildergalerie …

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    IG-R-3: Water procurement in the processing industry

    The illustration IG-R-3 ‘Water procurement in the processing industry’ contains a line chart which shows the development of water procurement in the processing industry during the period from 1991 to 2019. The illustration is presented as an index for the reference year 2001. There are two lines which show, on one hand the water procurement per price-adjusted gross value added and on the other, the own withdrawal plus the external water supply minus delivery of water to third parties.

    … Wasserversorgung und Abwasserentsorgung; Volkswirtschaftliche Gesamtrechnungen) Download image (108.20 kB) The following contents contain this medium: IG-R-3: Water …

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    KM-I-2: Sea levels

    The line chart KM-I-2 ’Sea levels’ shows the moving annual mean of the tidal mid-water in centimetres with reference to NHN (Normalhöhennull/base height level) for six different gauging stations in the North See and Baltic Sea. The sea level rose significantly at all gauging stations in the period under observation. Depending on data availability the time series illustrate the years, starting with the earliest year of 1843 and ending with the latest period of 1963 to 2021. Among the gauging stations observe

    … database (Pegeldatenbank) of the Federal Waterways and Shipping Administration) Download image (138.99 kB) The following contents contain this medium: KM-I-2: Sea …