Sökning: "Flux footprint"

Hittade 5 uppsatser innehållade orden Flux footprint.

  1. 1. The Effects of Clear-Cutting a Hemiboreal Forest on Local CO2 Fluxes in Norunda, Sweden

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

    Författare :Mads Carlsen; [2023]
    Nyckelord :CO2 flux; Clear-cutting; Coniferous forest; Flux footprint; Sustainable forestry; Earth and Environmental Sciences;

    Sammanfattning : As CO2 builds up in the atmosphere causing global climate change (IPCC, 2022) trees have become an international symbol of combatting this, and for good reason. Trees take up CO2 which as a result combats these changes, and when these trees are cut down fewer individuals remain to take up the CO2 that we humans emit (Chapin et al., 2011). LÄS MER

  3. 2. Integrating membrane filtration forwater reuse in tissue mill

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Ehsan Moslehi; [2018]
    Nyckelord :Membrane separation; Paper industry; Paper mill effluent; Water reuse ; Reverse Osmosis;

    Sammanfattning : Water is an essential and indispensable component is the pulp- and paper production industry.The increase in energy costs, stricter environmental regulations and water resource shortageshave caused a reduction of the water footprint in the industry as well as an increase in waterrecycling and water circuit closure. LÄS MER

  4. 3. Application of the eddy-covariance method under the canopy at a boreal forest site in central Sweden

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

    Författare :Vlad Pirvulescu; [2013]
    Nyckelord :closed-path system; open-path system; soil chambers; latent heat flux; carbon dioxide flux; sensible heat flux; Physical Geography and Ecosystem Analysis; eddy-covariance; Norunda; Earth and Environmental Sciences;

    Sammanfattning : The eddy-covariance (EC) method was applied at 1.5 m height, for the period 2007-2010 at Norunda, central Sweden, for calculating energy (sensible and latent heat) and carbon dioxide (CO2) fluxes. The aim of this study was to assess the applicability of EC method above the forest floor. LÄS MER

  5. 4. Variability of turbulent fluxes (momentum, heat and CO2) during Upwelling conditions. A case study

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

    Författare :Carlos Román Cascón; [2010]
    Nyckelord :CO2 fluxes; upwelling; marine boundary layer; turbulent fluxes;

    Sammanfattning : Measurements of turbulent fluxes (momentum, sensible heat, latent heat and CO2) at two different heights were studied from data of a tower at Ostergarnsholm Island (Baltic Sea) during one week, while calculations using bulk formulations of fluxes were done with measurements in the tower and in two buoys moored at different locations. Different behaviors are found for the different fluxes. LÄS MER

  7. 5. Effects of Upwelling Events on the Atmosphere

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

    Författare :Susanna Hagelin; [2006]
    Nyckelord :upwelling; marine boundary layer; air-sea interaction; turbulent fluxes;

    Sammanfattning : During an upwelling event the cold bottom-water is brought to the sea surface. This cools the atmosphere from below and the stratification becomes more stable. When the atmosphere is more stable the turbulence is reduced and, as a consequence, so are the turbulent fluxes. LÄS MER