Search for dissertations about: "coastal erosion"

Showing result 26 - 30 of 31 swedish dissertations containing the words coastal erosion.

2. 26. Fluxes and transformation of carbon in the Siberian shelf seas under changing environment

   Author : Irene Wåhlström; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Carbon system; Carbon dioxide; Arctic Ocean; Siberian shelf seas; Climate change;

   Abstract : The Arctic is especially vulnerable to the increased air temperature caused by emissions of greenhouse gases to the atmosphere, carbon dioxide being one of them. In this thesis, both fieldwork and modelling of the East Siberian Arctic Shelf (the Laptev Sea and the East Siberian Sea) have been carried out to investigate the carbon system in this region. READ MORE

4. 27. Transport, degradation and burial of organic matter released from permafrost to the East Siberian Arctic Shelf

   Author : Lisa-Marie Bröder; Örjan Gustafsson; Tommaso Tesi; Elizabeth Canuel; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; organic carbon; marine sediments; East Siberian Sea; Laptev Sea; cross-shelf transport; degradation rate constants; carbon isotopes; terrestrial biomarkers; HMW wax lipids; lignin phenols; compound-specific radiocarbon analysis; Applied Environmental Science; tillämpad miljövetenskap;

   Abstract : Permafrost soils in the Arctic store large quantities of organic matter, roughly twice the amount of carbon that was present in the atmosphere before the industrial revolution. This freeze-locked carbon pool is susceptible to thawing caused by amplified global warming at high latitudes. READ MORE

5. 28. Simulating Transport and Understanding Future Fluxes of Organic Carbon in Rivers Draining into the Baltic Sea

   Author : Kim Dahlgren Strååt; Emma Undeman; Martyn Futter; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Riverine organic (TOC, Total Organic Carbon) and inorganic (DIC, Dissolved Inorganic Carbon) carbon are the main sources of carbon in the Baltic Sea. While the importance of this contribution has been evaluated, there are currently several gaps in our knowledge of the mechanisms governing organic carbon dynamics in this region, especially for the particulate form, and the impact of future climate change on organic carbon transport. READ MORE

6. 29. Carbon Dynamics in Northern Marginal Seas

   Author : Sofia Hjalmarsson; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; dissolved inorganic carbon; total alkalinity; continental shelf pump; marginal seas; Baltic Sea; Skagerrak; Laptev Sea; East Siberian Sea; Chukchi Sea;

   Abstract : The marginal seas have, despite their relatively small area, an important role in the global carbon cycle. They are largely influenced by carbon and nutrient fluxes from land and a large part of the biological production occurs in the marginal seas. READ MORE

7. 30. Compositional clues to sources and sinks of terrestrial organic matter transported to the Eurasian Arctic shelf

   Author : Emma Karlsson; Örjan Gustafsson; Volker Brüchert; Thorsten Dittmar; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; organic carbon; degradation; microcosm; incubation; terrestrial biomarkers; acyl lipids; lignin phenols; radiocarbon; Eurasian Arctic shelf; East Siberian Sea; Laptev Sea; Lena River; colloidal matter; particulate matter; sedimentary matter; Applied Environmental Science; tillämpad miljövetenskap;

   Abstract : The amount of organic carbon (OC) present in Siberian Arctic permafrost soils is estimated at twice the amount of carbon currently in the atmosphere. The shelf seas of the Arctic Ocean receive large amounts of this terrestrial OC from Eurasian Arctic rivers and from coastal erosion. READ MORE