13153 to 13164 of 13980 results
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A step-change in the date of sea-ice breakup in western Hudson Bay
Read more of: A step-change in the date of sea-ice breakup in western Hudson BayOver the last four decades there has been a trend to earlier summer breakup of the sea ice in western Hudson Bay, Canada. This sea ice is critical for the […]
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The role of sea ice formation in cycling of aluminium in northern Marguerite Bay, Antarctica
Read more of: The role of sea ice formation in cycling of aluminium in northern Marguerite Bay, AntarcticaThe use of dissolved Al as a tracer for oceanic water masses and atmospheric dust deposition of biologically important elements, such as iron, requires the quantitative assessment of its sources […]
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Soil fungal community composition at Mars Oasis, a southern maritime Antarctic site
Read more of: Soil fungal community composition at Mars Oasis, a southern maritime Antarctic sitePCR amplification of ITS1-5.8S-ITS2 regions of rDNA followed by cloning was used to determine the fungi present in soil from three sites at Mars Oasis in the southern maritime Antarctic. […]
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Theory and observations of Ekman flux in the chlorophyll distribution downstream of South Georgia.
Read more of: Theory and observations of Ekman flux in the chlorophyll distribution downstream of South Georgia.A large phytoplankton bloom occurs downstream of South Georgia, an island on the northern edge of the Scotia Sea, Atlantic sector of the Southern Ocean. This is due to natural […]
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On the non-Gaussian nature of ionospheric vorticity
Read more of: On the non-Gaussian nature of ionospheric vorticityWe present, for the first time, the probability density function (PDF) of ionospheric vorticity measurements made by the SuperDARN HF radars. We show that the PDF is typically heavy-tailed and […]
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Interannual variability of the S=1 and S=2 components of the semidiurnal tide in the Antarctic MLT
Read more of: Interannual variability of the S=1 and S=2 components of the semidiurnal tide in the Antarctic MLTTwelve years of horizontal wind data from the Scott Base MF radar and the Halley SuperDARN radar recorded between January 1996 and December 2007 are analysed to study the interannual […]
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Mitochondrial plasticity in brachiopod (Liothyrella spp.) smooth adductor muscle as a result of season and latitude
Read more of: Mitochondrial plasticity in brachiopod (Liothyrella spp.) smooth adductor muscle as a result of season and latitudeHabitat temperature and mitochondrial volume density (Vv(mt,mf)) are negatively correlated in fishes, while seasonal acclimatization may increase Vv(mt,mf) or the surface density of the mitochondrial cristae (Sv(im,mt)). The effect of […]
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Thermal plasticity of mitochondria:a latitudinal comparison between Southern Ocean molluscs
Read more of: Thermal plasticity of mitochondria:a latitudinal comparison between Southern Ocean molluscsMitochondrial volume density (Vv((mt,f))), cristae surface density (Sv((im,mt))), cristae surface area (Sv((im,f))) and citrate synthase (CS) activity were analysed as indicators of thermal acclimation in foot muscle of the limpet, […]
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Ice and ocean processes in the Bellingshausen Sea, Antarctica
Read more of: Ice and ocean processes in the Bellingshausen Sea, AntarcticaIn the vicinity of the Antarctic Peninsula observations show diminishing sea ice and a rapid warming of atmosphere and ocean. These changes have led to the collapse of ice shelves […]
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Observations beneath Pine Island Glacier in West Antarctica and implications for its retreat
Read more of: Observations beneath Pine Island Glacier in West Antarctica and implications for its retreatThinning ice in West Antarctica, resulting from acceleration in the flow of outlet glaciers, is at present contributing about 10% of the observed rise in global sea level. Pine Island […]
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Depositional environments and chronology of Late Weichselian glaciation and deglaciation in the central North Sea
Read more of: Depositional environments and chronology of Late Weichselian glaciation and deglaciation in the central North SeaGeological constraints on ice-sheet deglaciation are essential for improving the modelling of ice masses and understanding their potential for future change. Here we present a detailed interpretation of depositional environments […]