Sökning: "permafrost hydrology"

Visar resultat 1 - 5 av 14 uppsatser innehållade orden permafrost hydrology.

  1. 1. Surface and Subsurface Flow Connection and Dominating Runoff Mechanism in Hillslope of Tarfala, Northern Sweden.

    Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Namika Maharjan; [2023]
    Nyckelord :Advanced Terrestrial Simulator ATS ; hillslope connectivity; tracer test; hydrological modeling; parameter analysis; sub artic regions; hillslope hydrology;

    Sammanfattning : The Sub artic regions are becoming increasingly important due to the effects of climate change. In northern Sweden, thawing of permafrost has led to significant increases in annual minimum flows in several catchments. LÄS MER

  3. 2. Analysis of Rainfall-runoff processes at different scales in two mountainous, Arctic catchments in northern Sweden

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :June Johansson; [2023]
    Nyckelord :Arctic hydrology; Catchment response parameters; Water height recession analysis; Permafrost presence; Glacier presence;

    Sammanfattning : The hydrological regime in Arctic catchments is being altered as an effect of climate change. To be able to project future changes in Arctic hydrology and hydrogeology, the mechanisms and drivers affecting runoff generation needs to be understood. LÄS MER

  4. 3. GIS, tracer test and water balance based hydrological analysis in Tarfala, Northern Sweden

    Kandidat-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Elias Koivisto; [2022]
    Nyckelord :Tarfala; DEM; Tracer test; Water balance; the Arctic; Climate change; Permafrost; Glacier;

    Sammanfattning : Current climate change poses a threat to the Arctic due to increasing temperatures, which cause the permafrost and glaciers to melt and thaw. This thesis focused on analyzing water balances in Tarfala catchment between 2000 and 2020 and using GIS as a support for tracer test results measured in Tarfala in 2021. LÄS MER

  5. 4. Movement of Foxfonna rock glacier in Svalbard between 2017-2019

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

    Författare :Elias Lundström; [2020]
    Nyckelord :rock glacier; Svalbard; UAV; photogrammetry; movement detection; permafrost; Earth and Environmental Sciences;

    Sammanfattning : The movement of a rock glacier located at the bottom of the Foxfonna glacier, Svalbard, Norway, was studied through the use of photogrammetry and feature tracking software, between the years of 2017-2019, as well as elevation changes between 2009 and 2019. This could aid in further knowledge about the rapid velocity changes of rock glaciers in a continuous permafrost environment. LÄS MER

  7. 5. Effects of Wildfire Burn on Permafrost Landcover and Catchment Hydrology in Manitoba, Canada

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Andreas Andersson; [2019]
    Nyckelord :wildfire; permafrost; catchment hydrology;

    Sammanfattning : Permafrost is a strongly controlling factor on Arctic hydrology due to its effect on ground permeability, and thus surface and ground water flow paths. As wildfires are increasing in occurrence and magnitude in permafrost regions, they may alter the hydrological regime via permafrost thaw and degradation that increases ground permeability. LÄS MER