Ocean-atmosphere heat fluxes at the Ronne Polynya, Antarctica
The Ronne Polynya is a coastal polynya, a region of thin ice or open water in sea ice, caused by the offshore transport of the ice by strong winds from […]
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Read more of: Ocean-atmosphere heat fluxes at the Ronne Polynya, Antarctica
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An unusual VLF signature structure recorded by the DEMETER satellite
Read more of: An unusual VLF signature structure recorded by the DEMETER satelliteA type of electromagnetic phenomenon has been found in the electric VLF data measured by the low Earth orbit DEMETER satellite, which was nonidentified earlier as a different class of […]
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Life history strategy of Lepraria borealis at an Antarctic inland site, Coal Nunatak
Read more of: Life history strategy of Lepraria borealis at an Antarctic inland site, Coal NunatakCoal Nunatak is an ice-free inland nunatak located on southern Alexander Island, adjacent to the west coast of the Antarctic Peninsula. Situated close to the Antarctic continent, it is characterized […]
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Vanguard – a proposed European astrobiology experiment on Mars
Read more of: Vanguard – a proposed European astrobiology experiment on MarsWe propose a new type of robotic mission for the exploration of Mars. This mission is called Vanguard and represents the fruits of a collaboration that is both international and […]
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First documentation of leopard seal predation of South Georgia pintail duck
Read more of: First documentation of leopard seal predation of South Georgia pintail duckLeopard seals are regular winter visitors to Bird Island, South Georgia, where they mostly prey on fur seals and penguins, and to a lesser extent on Antarctic krill and fish. […]
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Volatility of unevenly sampled fractional Brownian motion: An application to ice core records
Read more of: Volatility of unevenly sampled fractional Brownian motion: An application to ice core recordsThe analysis of many natural time series and especially those related to ice core records often suffers from uneven sampling intervals. For fractional Brownian motion, we show that standard estimates […]
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Glacier retreat on South Georgia and implications for the spread of rats
Read more of: Glacier retreat on South Georgia and implications for the spread of ratsUsing archival photography and satellite imagery, we have analysed the rates of advance or retreat of 103 coastal glaciers on South Georgia from the 1950s to the present. Ninety-seven percent […]
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High levels of spatial heterogeneity in the biodiversity of soil prokaryotes on Signy Island, Antarctica
Read more of: High levels of spatial heterogeneity in the biodiversity of soil prokaryotes on Signy Island, AntarcticaIn a previous study, soil bacterial diversity at environmentally distinct locations on Signy Island was examined using denaturing gradient gel electrophoresis (DGGE) profiling, and a range of chemical variables in […]
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The role of Southern Ocean processes in orbital and millennial CO2 variations – a synthesis
Read more of: The role of Southern Ocean processes in orbital and millennial CO2 variations – a synthesisRecent progress in the reconstruction of atmospheric CO2 records from Antarctic ice cores has allowed for the documentation of natural CO2 variations on orbital time scales over the last up […]
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Seasonal and interannual variation of dissolved iodine speciation at a coastal Antarctic site
Read more of: Seasonal and interannual variation of dissolved iodine speciation at a coastal Antarctic siteDissolved iodine speciation in surface seawater at a coastal Antarctic site has been studied over a period spanning three austral summers. The sampling site is biologically productive, with a summertime […]
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Testing metabolic scaling theory using intraspecific allometries in Antarctic microarthropods
Read more of: Testing metabolic scaling theory using intraspecific allometries in Antarctic microarthropodsQuantitative scaling relationships among body mass, temperature and metabolic rate of organisms are still controversial, while resolution may be further complicated through the use of different and possibly inappropriate approaches […]
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Gene expression associated with changes in cold tolerance levels of the Antarctic springtail, Cryptopygus antarcticus
Read more of: Gene expression associated with changes in cold tolerance levels of the Antarctic springtail, Cryptopygus antarcticusThe ability of the Antarctic microarthropod Cryptopygus antarcticus (Collembola, Isotomidae) to survive low temperatures has been well studied at the physiological level, with recent investigations indicating the importance of the […]