Sökning: "Arctic wetlands"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden Arctic wetlands.

  1. 1. Applying LPJ-GUESS on the Arctic: A model evaluation and benchmarking study

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Margot Jeanne Knapen; [2023]
    Nyckelord :Physical Geography and Ecosystem Analysis; LPJ-GUESS; Arctic; FLUXNET; Gross Primary Productivity; Ecosystem Respiration; Permafrost; Active Layer Thickness; Snow Depth; Earth and Environmental Sciences;

    Sammanfattning : Warming in the Arctic occurs at a much higher rate than the global average, which has a considerable impact on the Arctic terrestrial carbon cycle. Permafrost thawing can release substantial amounts of carbon, whilst tundra shrubification and tree-line advance, on the other hand, may compensate for this. LÄS MER

  3. 2. Influence of permafrost disintegration on wetland carbon fluxes in Abisko, Sweden

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Aida Esmailzadeh Davani; [2021]
    Nyckelord :Physical Geography; Ecosystem Analysis; Permafrost; CH4 flux; CO2 flux; Abisko; Wetlands; Earth and Environmental Sciences;

    Sammanfattning : The northern permafrost regions are experiencing a rapid warming as surface temperatures are rising, causing a disintegration of permafrost and a deepening of the active layer (AL). This releases previously frozen carbon, making it available for decomposition by microbes. LÄS MER

  4. 3. Reviving Skellefteå

    Master-uppsats, KTH/Stadsbyggnad

    Författare :Lubna Boltakke; [2021]
    Nyckelord :Riverpark; Skellefteå; 2050; co-working; canal; water treatment; business park;

    Sammanfattning : The changes that we are seeing and anticipating are largely due to human behaviour. Arctic sea ice is at the lowest levels ever recorded. The volume of Arctic ice has decreased dramatically over the past decade. . LÄS MER

  5. 4. Estimating active layer thickness at the high Arctic study site Zackenberg from remotely sensed ground subsidence

    Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Lotte Wendt; [2021]
    Nyckelord :active layer thickness; DInSAR; subsidence; permafrost; Zackenberg; CALM; Earth and Environmental Sciences;

    Sammanfattning : The active layer thickness (ALT) is an indicator of permafrost thaw, which potentially leads to the release of large amounts of greenhouse gases under global warming, and thus could further amplify climate change. The thaw depth of the active layer also governs seasonal surface deformation, caused by the volume change between ice to water, which poses risks for slope stability and infrastructure foundations. LÄS MER

  7. 5. Analysis of the global ESA GlobPermafrost map for Scandinavia

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Nina Nesterova; [2018]
    Nyckelord :Physical Geography and Ecosystem analysis; Arctic; permafrost; permafrost modeling; TTOP; CryoGRID 1; GlobPermafrost; Scandinavia; Earth and Environmental Sciences;

    Sammanfattning : Due to its high vulnerability, permafrost is one of the key features studied in the field of climate change impacts. Permafrost is widespread in the Arctic region. LÄS MER