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An accurate quantitative description of the relationship between the stresses in ice masses … and the resulting deformation strain rates is a critical ingredient in successfully modelling their … flow.
A video system with dual camera capability (sideward, and downward looking) was … deployed within and below the Amery Ice Shelf, East Antarctica. Although the system had no … real time image transmission capability, video imagery was obtained at two hot water drilled … borehole sites AM03 (70° 33.
The ‘Norfolk Meeting’ was held in November 2005 as a joint IWC SO GLOBEC initiative to … outline a program of work to expedite integrative circumpolar analyses of existing cetacean … data series for the Antarctic. Our aim was to use the results of these analyses to summarise, on a circumpolar scale…
The ‘Norfolk Meeting’ was held in November 2005 as a joint IWC SO GLOBEC initiative to … outline a program of work to expedite integrative circumpolar analyses of existing cetacean … data series for the Antarctic. Our aim was to use the results of these analyses to summarise, on a circumpolar scale…
There is much speculation over the role of frazil ice in both ocean cavities under ice shelves and in the adjacent ocean where Ice Shelf Water (ISW) plumes are found. Traditionally three-dimensional ocean circulation models have ignored this slurry of small, thin…
There is much speculation over the role of frazil ice in both ocean cavities under ice shelves and in the adjacent ocean where Ice Shelf Water (ISW) plumes are found. Traditionally three-dimensional ocean circulation models have ignored this slurry of small, thin…
In recent years there has been increasing interest in the role of frazil ice in ocean cavities … under ice shelves and in the adjacent ocean, where plumes of Ice Shelf Water (ISW), colder … than the sea-water surface freezing point, are observed. The development of frazil ice - suspensions of small…
Recent research indicates extensive basal melting near the deep grounding lines of major … Antarctic outlet glaciers. Further…
Using satellite altimeter measurements of Antarctic surface elevation changes Davis and … others (Science, 2005) reported that the interior of the East Antarctic ice sheet is thickening … slightly, contributing 0.12 mm/a towards lowering global sea-level.
Methanesulphonic acid (MSA) measured along ice cores was largely used as a marker of … past marine biogenic activity because of it is formed by atmospheric oxidation of … dimethylsulphyde (DMS), emitted by metabolic processes of marine biota.
Oceanographic and seismic observations of the ocean beneath the Amery Ice Shelf, taken … over several seasons, describe a general pattern consistant with an “ice pump” mechanism. The ice pump is a general description of the thermohaline circulation under ice shelves.
Life beneath the Antarctic ice shelves is surprisingly abundant and diverse. This study … documents the Holocene seabed community beneath the Amery Ice Shelf, East Antarctica, based on fossil analysis of a 47 cm long sediment core. The surface samples from this core … reveals a rich modern fauna…
The Antarctic Sea Ice Processes and Climate (ASPeCt) is a program of multi-disciplinary … Antarctic sea ice zone research which is co-sponsored by the Scientific Committee on … Antarctic Research (SCAR) and the Climate and Cryosphere (CliC) program.
We evaluated the weekly NIC (National Ice Center) ice chart dataset with in situ sea-ice … thickness observations from the ASPeCt (Antarctic Sea Ice Processes and Climate) program … during the 1995 to 2000 time period. Five ship voyages from May/June 1995, August 1995, May/June 1998…
The Ice Station Polarstern (ISPOL) was a drifting ice station experiment in the western … Weddell Sea during November and December 2004.
In late 2004 a multi-national, interdisciplinary study coordinated by the Alfred Wegener … Institute for Polar and Marine Research, Germany, was carried out in the Western Weddell … Sea. A drifting station, Ice Station POLarstern [ISPOL] formed the core component of this … cruise…
The efforts of Patterson and co-workers (Murozumi et al., 1969) to accurately measure Pb … concentrations in Greenland and Antarctic snow and ice produced the first reliable … determination of Pb pollution of the Earth’s polar ice sheets. Since then…
In recent times there has been increasing interest in Sr as an isotopic tracer in environmental … studies. There is the potential to characterise dust inputs at a certain site by transport of … material from source areas if the isotopic compositions of the site and source areas are … known.
Antarctic ice is an archive of evidence of climatic conditions and natural phenomena in the … Southern Hemisphere that extends approximately one million years into the past. We can … sense changes through the concentration of atmospheric gases, stable isotope ratios, terrestrial dust levels…
Introduction: Sea ice provides a habitat for algal communities which contribute significantly to … overall primary production of the ice-covered Southern Ocean and may serve as an important … food resource for pelagic herbivores like Antarctic krill…
Conventionally the source of sea salt in the Antarctica was considered to be the ocean … surface. In simple terms, sea salt is ejected into the atmosphere as sea spray droplets, mixed … in the atmosphere, and transported to Antarctica via storm activity. Recently, however…
Stable isotope measurements from ice cores have long been regarded as proxies for local … temperature, and recent work shows that a strong isotope-temperature relationship exists … even on interannual timescales, especially if multiple cores are used and a regional (rather … than local)…
The microparticle record from the Dome Summit South ice core, Law Dome, East Antarctica … is investigated using a Coulter Multisizer to provide concentration and size distribution at … selected depths. This core site has an unusually high accumulation rate (640 kg m2/a) during … the Late Holocene…
Most of what has been said about modern Antarctic climate change is based on studies of … meteorological observations that extend back the 1950s. Most attention to Antarctic ice core … records is focused on the timescale of glacial-interglacial cycles.