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  • KomPass: Article from 28.11.2023 | Last changed: 12.12.2024

    FI-I-2: Herring larvae in the Greifswalder Bodden

    The picture shows herring spawn. It is possible to see six transparent eggs adhering to each other, with larvae inside.

    … Herring larvae in the Greifswalder Bodden In Greifswalder Bodden, spring storms cause early herring larvae to hatch with scarce food. Source: Dorothee Moll 2023 … developing faster, the herring larvae are exposed to starvation 87 . The indicator used for herring recruitment success in the western part of the Baltic Sea is the …

  • KomPass: Article from 28.11.2023 | Last changed: 11.12.2024

    GE-I-4: Ragweed pollen burden

    The picture shows a close-up of a ragweed plant in flower.

    … – known as ragweed – has an extraordinarily high allergenic potential. Ragweed used to occur relatively seldom and inconsistently in Germany. Its occurrence did … in agricultural set-aside areas, on building sites and on road and path verges. Causes for the spreading of this species may be, for instance, the contamination with …

  • KomPass: Article from 28.11.2023 | Last changed: 12.12.2024

    FW-R-2: Conservation of forest-genetic resources

    The picture shows a seed plantation in flower, as well as high trees. In the grassland between the trees, tyre tracks are visible.

    … and monitoring. This is why expensive ex-situ conservation is less frequently used than in-situ conservation. Seed plantations serve dual purposes: the production … area of genetic conservation objects in Germany is not possible. This is because there are numerous crucial factors which determine genetic adaptability to …

  • Cover from 02.10.2024

    Development of Germany’s climate - 2023 Monitoring Report

    Logo Deutscher Wetterdienst

    … indicates progressive global warming which cannot be attributed to natural causes, and nowadays it is considered an established scientific fact that further … such threshold values, it is possible to utilise other indicators which can also be used for recording persistent extreme climate events such as heat or drought … is a ‘ what if’ calculation based on the scenario selected. Climate projections are useful for trying to categorise different scenarios within a bandwidth of potential …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    WW-I-10: Water temperature of watercourses

    The picture shows a shallow, slow-flowing watercourse in sunny weather under a cloudless sky. Through the clear, reddish-brown shimmering water, the stony bed of the river is visible; some of the stones in the foreground project beyond the surface of the water. The banks are lined by mixed woodlands.

    … In the process of indexing, a mean value is calculated for each measuring point, using the deviations from the index year 2017, for which the temperature value is set at ‘0’. The values of these deviations are used to calculate the mean value across all gauging stations and fish regions …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    KM-I-2: Sea levels

    The picture shows a sandy beach on the Baltic Sea coast. There is seawater lapping around a hooded beach chair (Strandkorb). In the background, the sea is visible with powerful waves and dark thunderclouds above.

    … (MW) are relevant. For these coefficients of water level, a low-pass filter was used to calculate a moving average across 19 years. All gauges examined show that … unless targeted protective measures are taken 80 . In estuaries – which are also used as shipping lanes, for instance as access routes to the port of Hamburg via the …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    IG-R-2: Exposure of Germany’s foreign trade to global climate change

    The picture shows a large container port beneath a low sun. Visible in the foreground are a laden container ship and a few loading cranes. In the background there is another container ship docked at the port.

    … affected by climate change impacts, either on location or on the supply channels used for the products in question. That notwithstanding, an increasing volume of … goods to countries particularly exposed to climate change if these goods can be used there for adaptation to climate change.   188 - Peter M., Guyer M., Füssler J. …

  • KomPass: Article from 28.11.2023 | Last changed: 05.01.2026

    BAU-R-2: Green roofs in cities

    The picture shows the metal facade of a modern commercial building almost completely covered with a climbing plant.

    … buildings as well as their surrounding air 145 . On one hand, this is beneficial to users of buildings on hot summer days or during periods of great heat. On the other … and pollutants can precipitate more easily. 147, 147 Green roofs also serve a useful purpose in downpours. Depending on their design and technical layout, green … resolution with data from 3D building models. To put it in a simplified manner – by using satellite images, the vegetation areas were located within cities and tailored …

  • KomPass: Article from 28.11.2023 | Last changed: 17.12.2024

    IG-I-1: Heat-related decrease in efficiency

    The picture shows a woman wearing a blouse and a blazer, sitting in an office in front of a laptop. In her left hand she is holding an open water bottle while wiping sweat off her brow with her right hand. The woman’s eyes are closed and her facial expression suggests exhaustion.

    … resulting mistakes as well as greater frequency and severity of accidents at work causing associated productivity losses up to 12 % and that the extent of expected … Euros. In addition, the estimate also included indirect damage, for example, caused by missing, delayed or poor-quality preliminary work in a value of 3.5 to 5.3 …