Essays about: "firn cores"
Found 3 essays containing the words firn cores.
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1. Methane Sulphonic Acid in East Antarctic Coastal Firn and Ice Cores and Its Relationship with Chlorophyll-a and Sea Ice Extent in the Southern Ocean
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : The seasonal retreat of sea ice in the austral spring and summer around Antarctica has a significant effect on phytoplankton activity, mainly due to light availability, meltwater input of dissolved iron, and surface water stratification. Phytoplankton produce dimethylsulfoniopropionate, the precursor to the climate-cooling gas dimethyl sulphide, which is ventilated to the atmosphere and oxidised to methane sulphonic acid (MSA). READ MORE
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2. Aerosol Input and Snow Accumulation Rates on the Northern Greenland Ice Sheet : Reconstructed by means of Continuous Flow Analysis (CFA) of 6 shallow firn cores
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : Ice, firn and snow cores from the Greenland ice sheet offer a unique opportunity to reconstruct past climate conditions. These can be analyzed with continuous flow analysis (CFA) in order to acquire proxy information about ancient atmospheric aerosol concentrations, snow accumulation rates or temperature variations, atmospheric composition, solar activity as well as volcanism and biological activity. READ MORE
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3. Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : Current climate warming has a disproportionally large impact on Arctic glaciers and ice caps. In this thesis, I examined stratigraphic changes observed in the top ~15 m of two Arctic ice caps: one located at Svalbard (Lomonosovfonna) and the eastern Canadian Arctic Archipelago (Penny). READ MORE
