Essays about: "Palsas"
Found 4 essays containing the word Palsas.
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1. Evaluating DInSAR for measuring seasonal elevation dynamics at the Vissátvuopmi palsa mire complex in Northern Sweden
University essay from Göteborgs universitet/Institutionen för geovetenskaperAbstract : During recent years the palsa mires of Fennoscandia have reported to be undergoing extensive lateral degradation, and in a warming environment the palsa mires of Sweden among others are threatened to thaw completely by the end of this century. Since subarctic peatlands account for 30% of the global soil organic carbon storage, small degradation changes in these areas globally, can potentially change the greenhouse gas emissions on a worldwide scale. READ MORE
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2. Seasonal permafrost subsidence monitoring in Tavvavuoma (Sweden) and Chersky (Russia) using Sentinel-1 data and the SBAS stacking technique
University essay from Stockholms universitet/Institutionen för naturgeografiAbstract : Permafrost deformation is expected to increase due to climatic perturbations such as amplified air and soil temperatures, resulting in permafrost thawing and subsequent subsidence. Palsas and peat plateaus are uplifted ice-rich peat mounds that experience permafrost subsidence. READ MORE
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3. A 2D Electrical Resistivity Survey of Palsas in Tavvavuoma, sub-arctic Sweden
University essay from Uppsala universitet/Luft-, vatten- och landskapsläraAbstract : Electrical resistivity tomography (ERT) is a commonly used geophysical method to investigate permafrost in the mountain environment, but few studies have employed this method in a permafrost affected peatland. For this thesis, 5 ERT profiles were measured over 17 palsas and peat-plateaus in a palsa peatland environment in Tavvavuoma, northern Sweden, where the primary aim was to investigate the depth to the base of permafrost under the mounds. READ MORE
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4. Degrading palsa mires in northern Europe : changing vegetation in an altering climate and its potential impact on greenhouse gas fluxes
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : The on-going global warming is projected to have large impacts on the arctic and subarctic environment. Especially vulnerable are ecosystems with narrow climatic envelopes and with small possibilities of adaptation. An example of this is the palsa mires, subarctic mire complexes with patches of permafrost. READ MORE
