Using ecosystem monitoring data to detect impacts
The purpose of ecosystem monitoring programs is to indicate the state of ecosystems and whether they have been impacted by activities such as fishing. This paper discusses a range of […]
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Read more of: Using ecosystem monitoring data to detect impacts
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Evolutionary dynamics at high latitudes: speciation and extinction in polar marine faunas
Read more of: Evolutionary dynamics at high latitudes: speciation and extinction in polar marine faunasEcologists have long been fascinated by the flora and fauna of extreme environments. Physiological studies have revealed the extent to which lifestyle is constrained by low temperature but there is […]
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At-sea distribution and behavior of streaked shearwaters (Calonectris leucomelas) during the nonbreeding period
Read more of: At-sea distribution and behavior of streaked shearwaters (Calonectris leucomelas) during the nonbreeding periodStreaked Shearwaters (Calonectris leucomelas) breed in temperate regions of East and Southeast Asia and have been thought to migrate to tropical regions near the Equator after breeding. We documented the […]
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Faunal evidence for a late quaternary trans-Antarctic Seaway
Read more of: Faunal evidence for a late quaternary trans-Antarctic SeawayCollapse of the West Antarctic Ice Sheet (WAIS) would raise global sea level by similar to 3.3-5 m. Ice-sheet models and geological data suggest at least one collapse has happened […]
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Rapid changes in surface water carbonate chemistry during Antarctic sea ice melt
Read more of: Rapid changes in surface water carbonate chemistry during Antarctic sea ice meltThe effect of sea ice melt on the carbonate chemistry of surface waters in the Weddell-Scotia Confluence, Southern Ocean, was investigated during January 2008. Contrasting concentrations of dissolved inorganic carbon […]
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Minimal influence of water and nutrient content on the bacterial community composition of a maritime Antarctic soil
Read more of: Minimal influence of water and nutrient content on the bacterial community composition of a maritime Antarctic soilBacterial community composition was determined by culture-independent PCR-based methods in two soils differing markedly in their water, C, N and P contents sampled from Mars Oasis on Alexander Island, western […]
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Observation and parameterization of ablation at the base of Ronne Ice Shelf, Antarctica
Read more of: Observation and parameterization of ablation at the base of Ronne Ice Shelf, AntarcticaParameterizations of turbulent transfer through the oceanic boundary layer beneath an ice shelf are tested using direct measurements of basal ablation. Observations were made in the southwestern part of Ronne […]
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The oxygen isotope composition, petrology and geochemistry of mare basalts: Evidence for large-scale compositional variation in the lunar mantle
Read more of: The oxygen isotope composition, petrology and geochemistry of mare basalts: Evidence for large-scale compositional variation in the lunar mantleTo investigate the formation and early evolution of the lunar mantle and crust we have analysed the oxygen isotopic composition, titanium content and modal mineralogy of a suite of lunar […]
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Seals map bathymetry of the Antarctic continental shelf
Read more of: Seals map bathymetry of the Antarctic continental shelfWe demonstrate the first use of marine mammal dive-depth data to improve maps of bathymetry in poorly sampled regions of the continental shelf. A group of 57 instrumented elephant seals […]
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Convective heat transfer over thin ice covered coastal polynyas
Read more of: Convective heat transfer over thin ice covered coastal polynyasPolynyas play an important role in the regional meteorology and oceanography of the high latitudes and in the global ocean circulation. Unique low-level observations of an Antarctic coastal polynya, the […]
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Probing the relationship between electromagnetic ion cyclotron waves and plasmaspheric plumes near geosynchronous orbit
Read more of: Probing the relationship between electromagnetic ion cyclotron waves and plasmaspheric plumes near geosynchronous orbitPlasmaspheric plumes created during disturbed geomagnetic conditions have been suggested as a major cause of increased occurrences of electromagnetic ion cyclotron (EMIC) waves at these times. We have catalogued occurrences […]
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A numerical study of glacier advance over deforming till
Read more of: A numerical study of glacier advance over deforming tillThe advance of a glacier over a deforming sediment layer is analysed numerically. We treat this problem as a contact problem involving two slowly-deforming viscous bodies. The surface evolution of […]