Essays about: "Permafrost presence"

Showing result 1 - 5 of 11 essays containing the words Permafrost presence.

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

    University essay from Stockholms universitet/Institutionen för naturgeografi

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

    Abstract : 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. READ MORE

  3. 2. Influence of permafrost disintegration on wetland carbon fluxes in Abisko, Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Aida Esmailzadeh Davani; [2021]
    Keywords : Physical Geography; Ecosystem Analysis; Permafrost; CH4 flux; CO2 flux; Abisko; Wetlands; Earth and Environmental Sciences;

    Abstract : The northern permafrost regions are experiencing a rapid warming as surface temperatures are rising, causing a disintegration of permafrost and a deepening of the active layer (AL). This releases previously frozen carbon, making it available for decomposition by microbes. READ MORE

  4. 3. The potential disturbance of the 210Pb profile in peat cores by roots and the implications for 210Pb dating.

    University essay from

    Author : Nora Spjut; [2020]
    Keywords : Permafrost thaw; 210Pb dating; and Dwarf shrub roots;

    Abstract : At this moment there is a gap in information regarding the affect roots might have on 210Pb distribution in peat cores and in turn the obtained chronologies by 210Pb dating. Therefore, four peat cores were collected from the snow manipulation study site within the mire complex Storflaket (68°20048″N, 18°58016″E). READ MORE

  5. 4. The potential disturbance of the 210Pb profile in peat cores by roots and the implications for 210Pb dating.

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Nora Spjut; [2020]
    Keywords : Permafrost thaw; 210Pb dating; and Dwarf shrub roots;

    Abstract : At this moment there is a gap in information regarding the affect roots might have on 210Pb distribution in peat cores and in turn the obtained chronologies by 210Pb dating. Therefore, four peat cores were collected from the snow manipulation study site within the mire complex Storflaket (68°20048″N, 18°58016″E). READ MORE

  6. 5. Soil organic carbon storage, distribution and characteristics in two contrasting permafrostaffected environments : Evaluating the role of alpine and lowland tundra areas in the permafrost carbon feedback

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Didac Pascual; [2018]
    Keywords : soil organic carbon; permafrost; tundra; alpine; climate change; feedback; mapping; landcover; landform;

    Abstract : An important portion of the large northern permafrost soil organic carbon (SOC) pool might be released into the atmosphere as greenhouse gases following permafrost thawing and subsequent SOC decomposition under future warming conditions, resulting in a warming amplification known as the permafrost carbon feedback. Improved knowledge about the amount, composition and distribution of the permafrost SOC pool is essential when assessing the potential magnitude and timing of the permafrost carbon feedback. READ MORE