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Macquarie Island is an oceanic island located 1000k m south-east of Tasmania.The island, which lies close … to but north of the Antarctic Convergence is the southern most island in the world with a fairly complete cover of … vegetation. However…
Fan-Beam and Pencil-Beam Radar Scaterrometers on many satellites in polar orbits, e.g. ERS-1/2, ADEOS-1/2 and QuikSCAT, have been designed primarily for estimation of vector winds over the … global oceans. However, these scatterometers…
This paper introduces the recent activities of sea ice thickness observation around Syowa … station (400E), East Antarctica, conducted by the Japanese Antarctic Research Expedition … (JARE). Ship-borne video observations were conducted on 12 voyages from December … 1987.
Sea ice observations are difficult to obtain in sufficient temporal and spatial resolution. Several observational techniques have been used to build a sea ice record of ice … concentration, ice extent, and ice thickness among other things. Satellite measurements are … varied in their capabilities…
In autumn 2005, the GCOS Working Group on SST and Sea Ice (GCOS SST&SI WG) was redefined. The working group had been in existence, but inactive, for some 5 years, however it was concluded that there is a need for its activities. In short…
The Cryosphere and Climate Project (CliC) c~-ordinates climate activities related to all … parts of the earth's cryosphere. This includes sea ice, snow, ice shelves, ice bergs, lake ice, and permafrost. This talk will give a brief overview of the CliC project…
A study of the variation in snow cover and depth over the Antarctic sea ice zone was … performed using AMSR-E/Aqua snow depth and sea ice temperature products of … approximate 5-day intervals from June 2002 through December 2005. Time series statistic … analyses of mean and maximum snow depth…
Long-range forecasts of Antarctic sea ice are tery much in demand, not only because of … the potential importance of sea ice in global climate, but also for the practical purpose of … exploring the Antarctic continent. Unfortunately…
I will review current efforts to model the Antarctic ice pack. Sea ice models in GCMs have … become more sophisticated in recent years; state-of-the-art models now include viscousplastic … dynamics, second-order-accurate advection, multilayer thermodynamics…
I discuss 300-400 MHz ground-penetrating radar (GPR) profiles of sea ice in McMurdo … Sound, Antarctica. I recorded them in mid October, 2005 when ice temperature could have … eliminated most brine in the ice and allowed the bottom to be profiled.
Thicknesses of sea ice and snow are key variables in ice-ocean-atmosphere interactions. Sea ice insulates the warm ocean from polar air and controls the heat exchange, which is … determined by its thickness. Also, sea ice thicknesses, together with sea ice extent…
Sea ice freeboard distributions are detennined from ICESat measurements of mean surface … elevations with a range precision of -2 cm over 70 m footprints spaced by 170 m along … track. Freeboard (snow cover plus sea ice) distributions are constructed from elevation … measurements within :i:
Techniques to calculate sea ice thickness from measurements of sea ice freeboard from … spacebome radar and laser altimeters in the Arctic have the potential to be used in the … Antarctic. The conversion of freeboard, measured by the altimeter…
Estimates of sea ice thickness around Antarctica are particularly sparse due to the … difficulty of accessing the continent (particularly during winter) and the lack of submarine … data. However recent measurements of ice or snow freeboard, from both space-borne radar … and laser…
In their Policy Forum review “Do the largest protected areas conserve whales or whalers?” (Science, 28 Jan 2006, p.525), Gerber and co-authors criticised the scientific basis of the International Whaling Commissions’ (IWC)…
To date humpback whales (Megaptera novaeangliae) that breed close to the west (stock D) and the … east coast (stock E) of Australia are thought to restrict their feeding to IWC Management areas IV and … V respectively…
Since the 1990s there has been a period of rapid climate warming in Europe. Long-term broad scale … datasets coupled with time series at specific locations for rocky intertidal species dating back to the 1950s … have been collected in Britain and Ireland. Resurveys of the original locations in 2001…
AB: Hydroxyl (6-2)-band rotational temperature observations have been accumulated at Davis station, Antarctica (68°S, 78°E) over 12 consecutive years since 1995.
Auroral westward flow channels (A WFCs) are intense, narrow channels of westward drift overlapping the equatorward edge of the … auroral oval in the pre-magnetic midnight sector. They are a close relative of the sub-auroral polarisation stream which encompasses … polarisation jets…
An historical data set, collected in 1958 by Southward and Crisp, was used as a baseline for detecting … change in the abundances of species in the rocky intertidal of Ireland. In 2003, the abundances of each of … 27 species was assessed using the same methodologies (ACFOR…
The MarClim project was a four year multi-partner funded project created to investigate the effects of climatic warming on marine biodiversity. In particular the project aimed to use intertidal species, whose abundances had been shown to fluctuate with changes in climatic conditions…
Natural attenuation of petroleum hydrocarbons in polar and subpolar soils is limited by low nutrients, low temperatures, and … water availability.
Sub-Antarctic islands have been subjected to petroleum hydrocarbon spills, yet no information is available regarding … the toxicity of petroleum hydrocarbons to these subpolar soils.
ABSTRACT: Environmental conditions experienced in early life affect growth and influence life history … strategies, especially in seasonal environments.
Background: Poorly preserved biological tissues have become an important source of DNA for … a wide range of zoological studies. Measuring the quality of DNA obtained from these samples is … often desired; however…