Sökning: "periglacial"

Visar resultat 1 - 5 av 14 avhandlingar innehållade ordet periglacial.

  1. 1. Cold-climate landforms on Mars and Earth-analogues in Svalbard

    Författare :Andreas Johnsson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mars; Svalbard; Spitsbergen; periglacial; ice; permafrost; Earth-analogues; terrestrial analogues; geomorphology; landforms; solifluction; debris flow; gully; craters; cold-climate;

    Sammanfattning : Periglacial landforms on Earth reflect cold-climate conditions and are intimately related to processes due to the presence of ground ice and perennially frozen ground, permafrost. The overall objective of this thesis is to investigate the potential of Svalbard as an analogue to Mars cold-climate landforms, and explore past and present processes and surface conditions on Mars by inference from morphological counterparts in Svalbard. LÄS MER

  3. 2. The influence of climate and permafrost on catchment hydrology

    Författare :Emma Johansson; Georgia Destouni; Sean Carey; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrology; Periglacial; Greenland; Forsmark; Talik; Permafrost Hydrology; Hydrology; hydrologi;

    Sammanfattning : The cycling of water in the landscape is influenced by climate change on different time scales and in different directions regarding warming or cooling trends. Along with a changing climate, also the landscape and subsurface conditions, such as permafrost extent, may change in a long-term perspective. LÄS MER

  4. 3. Soil organic carbon stocks in high mountain periglacial settings of Patagonia (SW Argentina) and Vindelfjällen (NW Sweden)

    Författare :Christina Fröjd; Peter Kuhry; Dario Trombotto Liaudat; Margareta Johansson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Soil organic carbon; mountain permafrost; periglacial settings; solifluction landforms; alpine wetlands; landcover upscaling; naturgeografi; Physical Geography;

    Sammanfattning : .... LÄS MER

  5. 4. Relict non-glacial surfaces and autochthonous blockfields in the northern Swedish mountains

    Författare :Bradley W. Goodfellow; Arjen Stroeven; Clas Hättestrand; Johan Kleman; Krister Jansson; Adrian Hall; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; blockfield; chemical weathering; cosmogenic exposure dating; glaciated landscape; northern Sweden; periglacial geomorphology; relict surface; Physical geography; Naturgeografi; geografi med naturgeografisk inriktning; Geography; Physical Geography;

    Sammanfattning : Relict non-glacial surfaces occur in many formerly glaciated landscapes, where they represent areas that have escaped significant glacial modification. Frequently distinguished by blockfield mantles, relict non-glacial surfaces are important archives of long-term weathering and landscape evolution processes. LÄS MER

  7. 5. High-­resolution mapping of soil organic carbon storage and soil properties in Siberian periglacial terrain

    Författare :Matthias Siewert; Gustaf Hugelius; Mats Olsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Soil organic carbon; Siberia; remote sensing; ecosystems; Physical Geography; naturgeografi;

    Sammanfattning : In the past years considerable attention has been given to soil organic carbon (SOC) stored in permafrost-affected soils in periglacial terrain. Studies have shown that these soils store around half the global SOC pool, making them a key component of the global carbon cycle. LÄS MER