Sökning: "Glacial Surface Velocity"

Hittade 4 uppsatser innehållade orden Glacial Surface Velocity.

  1. 1. Meteorological Conditions on Nordenskiöldbreen Glacier, Svalbard (2009 – 2015)

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Niclas Bergman; [2017]
    Nyckelord :Svalbard; Nordenskiöldbreen; glacier; albedo; Svalbard; Nordenskiöldbreen; glaciär; albedo;

    Sammanfattning : Glacial environments in the Arctic are a much-studied topic as well as a field of research with strong influences regarding the current and future global climate of our planet. This report is focused on the meteorological conditions on Nordenskiöldbreen glacier from 2009-2015 and how they correlate with each other, the glacier surface and the surrounding terrain. LÄS MER

  2. 2. Differential Interferometry and Multiple-Aperture Interferometry for Retrieving Three-Dimensional Measurements of Glacial Surface Velocity

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Luke Webber; [2016]
    Nyckelord :Differential Interferometry; Multiple-Aperture Interferometry; 3D; Glacial Surface Velocity;

    Sammanfattning : The measurement and monitoring of glacial surface velocity is important for many aspects of glaciology, such as determining the mass balance, for characterising the stability or instability of glaciers, or the identification of potential hazards from surging glaciers or Jökulhlaups, a type of glacial outburst flood. Predominately measurements of glacial surface velocity have been produced using either differential interferometry (DInSAR) applied to radar data, or offset-tracking applied to either optical or radar data. LÄS MER

  3. 3. Applying GIS to Investigate the Spatial Variability of Sub-Glacial Hydrology under Land Terminating Ice Sheets in Western Greenland Ice Sheet.

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Welsh Samuel; [2016]
    Nyckelord :Hydraulic potential; Greenland; GIS; sub-glacial hydrological network; ice sheet dynamics; Hydraulisk potential; Grönländ; GIS; sub-glacial hydrologi; istäckesdynamik;

    Sammanfattning : With continued warming regional surface air temperatures around the Artic in recent decades, there is growing importance in understanding how ice sheet dynamics interact with a shifting global climate system. This research investigates the spatial variability of sub-glacial hydrology under land terminating ice sheets in Western GrIS, when applying varying overburden ice pressures within Shreve’s (1972) hydraulic potential equation. LÄS MER

  4. 4. Process- och miljötolkning av sedimentationen i en subglacial läsideskavitet, Järnavik, S. Blekinge

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Tomas Nilson; [1996]
    Nyckelord :geografi; geologi; processtolkning; miljötolkning; sedimentation; subglacial läsideskavitet; Järnavik; Blekinge; Earth and Environmental Sciences;

    Sammanfattning : This study deals with the development of a subglacial cavity in a province dominated by stoss- and leeside rockridges. In the area of Järnavik, south-central Blekinge, there is a small excavation on the leeside of a bedrock ridge. The lithofacies combinations in this section contains both diamictons and sorted sediments. LÄS MER