The effect of basal channels on oceanic ice-shelf melting
The presence of ice shelf basal channels has been noted in a number of Antarctic and Greenland ice shelves, but their impact on basal melting is not fully understood. Here […]
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Read more of: The effect of basal channels on oceanic ice-shelf melting
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Observations of nitric oxide in the Antarctic middle atmosphere during recurrent geomagnetic storms
Read more of: Observations of nitric oxide in the Antarctic middle atmosphere during recurrent geomagnetic stormsWe report ground-based measurements of the polar middle atmosphere made using a 230-250 GHz passive microwave radiometer deployed at Troll station (72°01’S 02°32’E, L-shell of L = 4.8), Antarctica. Our observations show enhanced […]
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Krill transport in the Scotia Sea and environs
Read more of: Krill transport in the Scotia Sea and environsHistorical observations of the large-scale flow and frontal structure of the Antarctic Circumpolar Current in the Scotia Sea region were combined with the wind-induced surface Ekman transport to produce a […]
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Global change and Arctic ecosystems: conclusions and predictions from experiments with terrestrial invertebrates on Spitsbergen
Read more of: Global change and Arctic ecosystems: conclusions and predictions from experiments with terrestrial invertebrates on SpitsbergenExtensive studies on invertebrates from Ny-Ålesund, Spitsbergen, Svalbard and more limited data on aphids from Abisko, Sweden, produced the following main conclusions: (1) The population response to raised summer temperatures […]
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Palaeolimnology of Antarctic fur seal Arctocephalus gazella populations and implications for Antarctic management
Read more of: Palaeolimnology of Antarctic fur seal Arctocephalus gazella populations and implications for Antarctic managementA recent rapid increase in the number of Antarctic fur seals on Signy Island has caused extensive changes to terrestrial and freshwater ecosystems. A palaeolimnological study was carried out to […]
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Tephra analysis of sediments from Midge Lake (South Shetland Islands) and Sombre Lake (South Orkney Islands), Antarctica
Read more of: Tephra analysis of sediments from Midge Lake (South Shetland Islands) and Sombre Lake (South Orkney Islands), AntarcticaLake sediment cores from Midge Lake, Livingston Island, South Shetland Islands and Sombre Lake, Signy Island, South Orkney Islands were analysed for volcanic tephra using light microscopy and magnetic susceptibility. […]
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Sublimation of ice through sediment in Beacon Valley, Antarctica
Read more of: Sublimation of ice through sediment in Beacon Valley, AntarcticaThe time-dependent physics of ice sublimation through thin layers of till is considered, to determine whether sublimation could be sufficiently slow to permit the preservation of ice for 8 Ma […]
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Table Nunatak: a key outcrop of Upper Cretaceous shallow-marine strata in the southern Larsen Basin, Antarctic Peninsula
Read more of: Table Nunatak: a key outcrop of Upper Cretaceous shallow-marine strata in the southern Larsen Basin, Antarctic PeninsulaThe northern, James Ross Island region of the Larsen Basin, on the eastern, back-arc margin of the Antarctic Peninsula magmatic arc, includes one of the thickest and most complete Upper […]