Sökning: "alaska"

Visar resultat 1 - 5 av 35 uppsatser innehållade ordet alaska.

  1. 1. Ett ljus i polariseringens mörka tunnel? : En innehållsanalys av ranked-choice-voting (RCV) systemets påverkan på polarisering.

    Kandidat-uppsats, Stockholms universitet/Statsvetenskapliga institutionen

    Författare :Victor Borisch; [2023]
    Nyckelord :ranked-choice-voting; RCV; polarisering; valsystem; Alaska; kongressen; USA;

    Sammanfattning : .... LÄS MER

  3. 2. Co-occurring Cold Extremes in North America and Unusually Warm Weather in Europe

    Kandidat-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Petros Stergiou; [2023]
    Nyckelord :Extreme temperature events co-occurrence; cold spells; warm extremes; Europe; North America; Pan-Atlantic atmospheric teleconnections; Samtidiga extrema temperaturhändelser; kalla extrema; varma extrema; Europa; Nordamerika; Pan-Atlantiska atmosfäriska telekopplingar;

    Sammanfattning : In this project, we identified and examined the 50 coldest extreme temperature eventsin North America (CENA) and the 50 warmest extreme temperature events insouthwestern Europe (WEEU) during the winter seasons from 1948 to 2023. For theanalysis, we utilized daily NCEP-NCAR reanalysis data for temperature, sea levelpressure (SLP), and 500hPa geopotential height (Z500). LÄS MER

  4. 3. Hg concentration in humus soils in different Arctic and Subarctic tundra vegetation types : Including a method comparison for analyzing metals in humus soils

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Alice Sandvärn; [2022]
    Nyckelord :Hg concentration; vegetation types; Arctic tundra; elevation gradient; XRF;

    Sammanfattning : Heavy metals, such as mercury (Hg), have a long residence time in the atmosphere and can be transported long distances and deposited in the Arctic via wet and dry deposition. Still, there are few studies on the complex mercury cycle and how different plant groups absorb Hg. LÄS MER

  5. 4. Hg concentration in humus soils in different Arctic and Subarctic tundra vegetation types : Including a method comparison for analyzing metals in humus soils

    Kandidat-uppsats,

    Författare :Alice Sandvärn; [2022]
    Nyckelord :Hg concentration; vegetation types; Arctic tundra; elevation gradient; XRF;

    Sammanfattning : Heavy metals, such as mercury (Hg), have a long residence time in the atmosphere and can be transported long distances and deposited in the Arctic via wet and dry deposition. Still, there are few studies on the complex mercury cycle and how different plant groups absorb Hg. LÄS MER

  7. 5. Conservation Genomics of the Long-tailed Duck

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Brynhildur Magnúsdóttir; [2021]
    Nyckelord :Long-tailed duck; migration; conservation; population structure; genome;

    Sammanfattning : With increasingly warming climate, many bird species have been forced to respond to environmental changes, and the long-tailed duck (Clangula hyemalis) is no exception. The populations of the long-tailed duck have been in decline the past few decades and the species is classified as globally vulnerable and near threatened in both Iceland and Sweden. LÄS MER