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  • 1.
    Algotsson, Josefina
    et al.
    SMHI, Core Services.
    Edman, Moa
    SMHI, Research Department, Oceanography.
    Förslag till statusklassning av parameter 9.5 Sötvatteninflöde och vattenutbyte i kustvatten och vatten i övergångszon: En jämförelse mellan Kustzonsmodellens naturliga och normala uppsättning2019Report (Other academic)
    Abstract [en]

    Around half of Sweden's electricity generation consists of hydropower, which is produced in about 2000 power plants. The largest drainage of water from land takes place during the spring and the water is stored in reservoirs for electricity production during the winter. This change in the natural runoff has major effects on the aquatic ecosystems and is considered to be one of the biggest environmental challenges for Swedish waterways and lakes.There is currently no guidance for status classification of hydromorphological parameters in coastal waters according to the Water Framework Directive. SMHI was commissioned by the water authorities to produce a proposal for class boundaries and classification for parameter 9.5 Freshwater inflow and water exchange in coastal water and water in transition zone in accordance with the regulations stated by the Swedish Agency for Marine and Water Management in the document HVMFS 2013:19. The hydrological model S-HYPE and the oceanographic Coastal Zone Model were used to study the changes in fresh water supply as well as fresh water content, salinity and water age of the surface water caused by regulation of water flow on land.In general, the regulation of water flow on land has led to an increase in the fresh water content by 2% along the Norrlands coast and a corresponding decrease in the fresh water content on the west coast. Typically, the regulation of water on land leads to a lower freshwater supply to the coast during spring and summer and a higher freshwater supply to the coast in the autumn and winter compared to a scenario with a natural land runoff.The natural background variation, as defined by ± 2 MAD (Median Absolute Deviation), and the Maximum Absolute Deviation, MAA, were used to construct 5 status classes.

  • 2.
    Algotsson, Josefina
    et al.
    SMHI, Core Services.
    Van Der Stelt, Frank
    SMHI, Professional Services.
    Abdoush, Diala
    SMHI, Core Services.
    Swedish coastal water bodies on Wikidata Combining WFD data with Wikidata2019Report (Other academic)
    Abstract [en]

    In accordance with the Water Framework Directive, the water district authorities report environmental information on Sweden’s surface water bodies to the EU.Under the government commission Smartare miljöinformation to the Swedish Environmental Protection Agency, Naturvårdsverket, the initiative was taken to adopt the reported environmental information on Sweden’s coastal water bodies to Wikidata and Wikipedia. SMHI has led the initiative with support from Wikimedia Sweden, the South Baltic Sea Water District Authority, the county administrative board of Jönköping and Wikimedia volunteers.The aim of this project has been to make the environmental information about Sweden’s coastal water bodies more accessible to the public, to disseminate knowledge about status classification and create conditions for increasing environmental awareness among the public. The project has resulted in:• 653 new coastal water bodies are described on Wikidata.• Wikipedia articles on water management in Sweden, coastal water bodies and the SVAR database have been created.• A template for infoboxes on Wikipedia has been developed and can automatically retrieve and display the status classification of coastal water bodies.• The template for infoboxes on coastal water bodies is used in articles on coastal waters on Wikipedia.• The license for the SVAR database is set to CC0, which facilitates the use of the information and opens the possibility of using it in more ways than before.

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