Sökning: "glacier"

Visar resultat 1 - 5 av 88 uppsatser innehållade ordet glacier.

  1. 1. Ash distribution and cavities in Icelandic glaciers, a marker for snow accumulation and radar signal velocity change

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Andrea Håkansson; [2020-01-15]
    Nyckelord :Iceland; GPR; CMP; Glacier; Vatnajökull; Háabunga; Langjökull;

    Sammanfattning : Glaciers in the geologically active Iceland has a high scientific as well as touristic value.In this thesis, the two largest glaciers on Iceland have been studied with GPR to find ifthe method is suitable to use in future glaciolocial studies where accumulation patternsand similar attributes are in focus in a world of deglaciation. LÄS MER

  2. 2. Foreland evolution of Blåisen, Norway, over the course of an ablation season

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Alexander Hamilton-Foyn; [2020]
    Nyckelord :Geomorphological Mapping; Structure from Motion; Glacial Landforms; Ice-Marginal Landforms; Landform Preservation; Hardangerjøkulen; Norway; Earth and Environmental Sciences;

    Sammanfattning : This study presents a detailed investigation into the evolution of sedimentary landforms over an ablation season at Blåisen, an outlet of the Hardangerjøkulen Icecap, Norway. The two visits to Blåisen, one each side of the ablation season, allowed the preservation and evolution of the landforms to be studied. LÄS MER

  3. 3. Åsars bildning och modellering av isälvar under äldre och yngre Dryas i Svealand

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Emilie Åström; [2020]
    Nyckelord :esker; channel ice stream; Weichsel; Dryas; flow accumulation; Svealand; åsar; isälvar; Weichsel; Dryas; flödesackumulation; Svealand;

    Sammanfattning : Sveriges geomorfologi har till största del bildats under den senaste glaciationens erosion och depositions processer. Vid denna glaciations avsmältning rann smältvattnet bort från glaciären i isälvarna genom tunnlar under inlandsisen. LÄS MER

  4. 4. Numerical Solvers of the p-Stokes Equations with Applications in Ice-Sheet Dynamics

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI); KTH/Skolan för teknikvetenskap (SCI)

    Författare :Sebastian Myrbäck; Jonatan Risberg; [2020]
    Nyckelord :;

    Sammanfattning : In glacier dynamics – i.e. the field of research concerning the movement of ice – intricate mathematical models are used to describe its motion. Ice can be considered as a highly viscous, non-Newtonian fluid, obeying a set of equations closely related to the well-known Navier-Stokes equations describing classical fluid mechanics. LÄS MER

  5. 5. Implications of a rapidly thinning ice-margin for annual moraine formation at Gornergletscher, Switzerland

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Lukas Rettig; [2020]
    Nyckelord :Recessional moraines; Ice-marginal processes; Glacier retreat; Glacial geomorphology; Glacial sedimentology; Alpine glaciers; Swiss Alps; Earth and Environmental Sciences;

    Sammanfattning : This study examines genetic processes and climatological significance of annual moraine formation in the foreland of Gornergletscher, a large alpine-valley glacier located in the southern Swiss Alps. A particular focus is set on moraine ridges that have been forming between 2007 and 2019, a period when the glacier has been subject to accelerated retreat and pronounced frontal thinning. LÄS MER