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Visar resultat 1 - 5 av 8 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Legacy effects of temperature alterations on microbial resistance and resilience to drying and rewetting

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

    Författare :Franklin Lee Harris; [2023]
    Nyckelord :microbial ecology; soil; carbon dynamics; high latitudes; climate change; moisture stress; isotopes; respiration; trait based ecology; soil microbes; Environmental Changes in High Latitudes EnCHIL ; Earth and Environmental Sciences; Biology and Life Sciences;

    Sammanfattning : With warming in soils due to climate change, a series of secondary factors arise, which have multifaceted effects on soil microbial communities. Of these, alterations to soil moisture are among the most crucial to understanding how microbial functions will change in the face of climate change. LÄS MER

  3. 2. Investigating Seasonal Snow in Northern Sweden – a Multi-Layer Snow Pack Model and Observations from Abisko Scientific Research Station Provide Clues

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Anna Staffansdotter; [2017]
    Nyckelord :Snow characteristics; snow layer development; snow pack modelling; climate change; Abisko Scientific Research Station; Snöegenskaper; snöskiktutveckling; snöpackmodell; klimatförändringar; Abisko naturvetenskapliga station;

    Sammanfattning : Meteorological parameters determine the physical properties of snow precipitating from the atmosphere, but snow layers also continue to develop within the snow pack after the precipitation event. New characteristics form depending on temperature fluctuations, interaction with the soil, overburden compression, rain-on-snow events and more. LÄS MER

  4. 3. Vetenskapen : - En Forskningsstation i Tarfala

    Uppsats för yrkesexamina på avancerad nivå, KTH/Arkitektur

    Författare :Linnéa Zickerman; [2016]
    Nyckelord :Forskningsstation; Tarfala; Träbyggnad; Glaciologi; Vind; Glaciär;

    Sammanfattning : Utan att forskarna riktigt kunde förklara varför stod det helt klart under 1900-talets första hälft att isarna blev mindre. På hela norra halvklotet blev glaciärerna allt mindre och denna storlekförändring sattes i samband med den temperaturökning som skett under samma tid. LÄS MER

  5. 4. Object-Based Classification of Vegetation at Stordalen Mire near Abisko by using High-Resolution Aerial Imagery

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

    Författare :Marco Giljum; [2014]
    Nyckelord :Physical Geography and Ecosystem Analysis; Object-Based Image Analysis; OBIA; Vegetation Classification; Permafrost; Arctic Peatland; Remote Sensing; Aerial Photography; Environmental Monitoring; Landscape Analysis; Earth and Environmental Sciences;

    Sammanfattning : The focus of this work is to investigate and apply the remote sensing method of object-based image analysis (OBIA) for vegetation classification of a permafrost underlain peatland in sub-arctic Sweden, by using aerial imagery of high resolution. Since the northern landscapes are an important source of naturally stored CH4 and CO2, their contribution to the global carbon cycle is a focus in research about climate change and the global methane exchange. LÄS MER

  7. 5. Time series analysis of ground frost conditions at Abisko, sub-Arctic Sweden, 1985-2010

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Anja Schmidt; [2012]
    Nyckelord :marktemperatur; subarktiska Sverige; Abisko forskningstation; frost cykler; snötäcke; lufttemperatur; Ground temperatures; subarctic Sweden; Abisko research station; frost cycle; snow cover; air temperature;

    Sammanfattning : Observed climatic change may result in modification of the ground thermal regime.The causes of shallow ground temperature variability, however, are not well documented. LÄS MER