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We investigate ice shelf rift propagation using a … combination of GPS and seismic measurements near the … tip of an active rift in the Amery Ice Shelf. These … measurements reveal that propagation occurs in episodic … bursts…
This paper is an extension of the paper by King et al. (2000), where two techniques were described to … process GPS data collected on a floating Antarctic ice shelf. King et al. (2000)…
Although guidelines exist for approaches to Weddell seals (Leptonychotes weddellii) in … Antarctica, there has been no scientific assessment of the effectiveness of these guidelines in … minimising disturbance to the seals.
The effects of diesel fuel and three lubricating oils on microbial communities in marine sediment were investigated in a field experiment at Casey Station, Antarctica. Sediment from a pristine site in Antarctica was treated with either Special Antarctic Blend (SAB) diesel, a synthetic lubricant…
The Adare Trough, located 100 km NE of Cape Adare, Antarctica, is the extinct third arm of a Tertiary spreading ridge that … separated East from West Antarctica. We use seismic reflection data, tied to DSDP Site 274…
A 5.52 m long sediment sequence was recovered from Lake Terrasovoje, Amery Oasis, East Antarctica, in … order to reconstruct the regional environmental history. The basal sediments, which are dominated by … glacial and glaciofluvial clastic sediments…
Abstract: Antarctic krill (Euphausia superba) are found throughout much of their life in schools. In the laboratory however…
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…
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.
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.
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.
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.
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.
Ice shelves play a major role in the discharge of ice from Antarctica both from iceberg calving and basal melt, and processes of ocean-ice interaction beneath the shelf are of increasing scientific interest.