Sökning: "cold-climate"

Visar resultat 11 - 15 av 61 avhandlingar innehållade ordet cold-climate.

  1. 11. Impact of cold climate on boreal ecosystem processes : exploring data and model uncertainties

    Författare :Sihong Wu; Per-Erik Jansson; Annikki Mäkelä; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; net ecosystem exchange; sensible and latent heat fluxes; soil temperature; soil moisture; CoupModel; GLUE;

    Sammanfattning : The impact of cold climate on physical and biological processes, especially the role of air and soil temperature in recovering photosynthesis and transpiration in boreal forests, was investigated in a series of studies. A process-based ecosystem model (CoupModel) considering atmospheric, soil and plant components was evaluated and developed using Generalized Likelihood Uncertainty Estimation (GLUE) and detailed measurements from three different sites. LÄS MER

  3. 12. Microalgae at wastewater pond treatment in cold climate : an ecological engineering approach

    Författare :Erik Grönlund; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering; Environmental engineering;

    Sammanfattning : Three types of wastewater ponds in subarctic climates were investigated, each of them highly dependent on microalgae. They were fellingsdams, i.e. LÄS MER

  4. 13. Local disposal of storm water in cold climate

    Författare :Christer Stenmark; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : .... LÄS MER

  5. 14. Nitrogen Cycling at Cold Climate Mine Sites in Northen Sweden

    Författare :Lino Nilsson; Anders Widerlund; Anders Lundqvist; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nitrogen; Mining; Cycling; nutrients; Isotopes; Nitrogen-model; modelling; numerical-modelling; Isotope-tracing; Tracing; Isotope; geochemistry; Applied Geology; Tillämpad geologi;

    Sammanfattning : High nitrogen discharge from mining sites has been an environmental issue that has been closely studied in the recent years. The environmental effects of high nitrogen discharge are mainly eutrophication, but can also lead to changed species composition and algae blooms. LÄS MER

  7. 15. Cold exposure and health : A study on neurological and vascular hand symptoms in northern Sweden

    Författare :Albin Stjernbrandt; Jens Wahlström; Ingrid Liljelind; Tohr Nilsson; Ellen Jørum; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cold climate; Sweden; Hand; Frostbite; Raynaud disease; Peripheral nerve injuries; Occupational and Environmental Medicine; arbets- och miljömedicin;

    Sammanfattning : Background: Living in a cold climate is associated with several adverse health effects. The main purpose of this thesis was to describe cold exposure characteristics in northern Sweden, and investigate the associations between such exposure and the reporting of neurological and vascular hand symptoms. LÄS MER