Search for dissertations about: "CO2 exchange"

Showing result 1 - 5 of 110 swedish dissertations containing the words CO2 exchange.

  2. 1. Air-Sea Fluxes of CO2 : Analysis Methods and Impact on Carbon Budget

    Author : Maria Norman; Anna Rutgersson; Erik Sahlée; William Drennan; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; air-sea exchange; carbon dioxide; Baltic Sea; eddy-covariance method; inertial dissipation method; cospectral-peak method; Baltic Sea measurements; CO2 fluxes; Galathea 3 expedition; Baltic Sea modeling; water-side convection; coastal upwelling; carbon budget; Meteorology; Meteorologi;

    Abstract : Carbon dioxide (CO2) is an important greenhouse gas, and the atmospheric concentration of CO2 has increased by more than 100 ppm since prior to the industrial revolution.  The global oceans are considered an important sink of atmospheric CO2, since approximately one third of the anthropogenic emissions are absorbed by the oceans. READ MORE

  4. 2. Air-sea exchange of O2 and CO2 : Processes controlling the transfer efficiency

    Author : Andreas Andersson; Anna Rutgersson; Brian Ward; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; air-sea flux; oxygen; transfer velocity; water-side convection; Arctic; UVCN; Meteorology; Meteorologi;

    Abstract : World oceans cover more than 70% of the earth surface and constitutes a major sink of atmospheric CO2. Two of the most important gases in the marine carbon cycling are O2 and CO2 and hence accurate descriptions of the air-sea gas exchange of these gases are crucial. READ MORE

  5. 3. Modelling carbon uptake in Nordic forest landscapes using remote sensing

    Author : Sofia Junttila; BECC: Biodiversity and Ecosystem services in a Changing Climate; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; forest; peatland; boreal region; remote sensing; carbon exchange; gross primary production; CO2; climate change; Sentinel-2;

    Abstract : Boreal forests and peatlands store over 30% of the global terrestrial carbon in their vegetation and soil. but changing climate can compromise the current carbon stock. READ MORE

  6. 4. Carbon exchange in boreal ecosystems: upscaling and the impacts of natural disturbances

    Author : Julia Kelly; BECC: Biodiversity and Ecosystem services in a Changing Climate; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Carbon fluxes; CH4; Climate change; CO2; Drought; Ecosystem respiration; Forest; Peatland; Remote sensing; Temperature; Thermal camera; UAV; Wildfire;

    Abstract : Boreal forests and peatlands are globally significant carbon stores but they are threatened by rising air temperatures and changes in precipitation regimes and the frequency of natural disturbances. Predicting how the boreal biome will respond to climate change depends on being able to accurately model and upscale the greenhouse gas fluxes between these ecosystems and the atmosphere. READ MORE

  7. 5. Refixation of respiratory CO2 in leaves

    Author : Diana Eckert; Anna M. Jensen; John Marshall; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; CO2 refixation; mesophyll resistance; stomatal conductance; Vcmax; leaf anatomy; photosynthesis; forestry; carbon allocation; ecophysiology; Natural Science; Naturvetenskap;

    Abstract : Photosynthesis is a vital process for trees, one in which CO2 plays a major role. At the same time, the tree’s own metabolism produces CO2. READ MORE