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Satellite remote sensing observations of three break-up events in 2008 for the Wilkins Ice Shelf (28 February … to 6 March, 27 May to 31 May, and 28 June to mid-July) provide unprecedented detail of ice shelf calving … during rapid break-up.
Antarctica is a continent locked in ice, with almost 99.7% of current terrain covered by permanent ice and snow, and clear evidence that, as recently as the Last Glacial Maximum (LGM), ice sheets were both thicker and much … more extensive than they are now.
Identification of DNA sequence diversity is a powerful means for assessing the … species present in environmental samples.
Seismic anisotropy is investigated across the previously unstudied region of central East Antarctica including new coastal locations and remote, temporary stations far inland.
Throughout the Southern Hemisphere many terrestrial taxa have circum-Antarctic distributions. This pattern is generally … attributed to ongoing dispersal (by wind, water, or migrating birds) or relict Gondwanan distributions. Few of these … terrestrial taxa have extant representatives in Antarctica…
We describe the circulation and seasonal development of the upper ocean … in the Seasonal Ice Zone (SIZ) of the Southern Ocean along 140°E. The 140°E section … was repeated four times between November 2001 and March 2002, spanning the period … from early spring to autumn.
The operating principle of atmospheric Rayleigh LIDAR (light … detection and ranging) systems is that the range-corrected return backscatter … signal is directly related to atmospheric density.
The preservation of tardigrade eggs and exuviae in Antarctic lake sediments provided an opportunity to assess post-glacial … colonisation and Holocene tardigrade dynamics on the southern continent. Tardigrade eggs were recovered from five lakes…
Efficient digital phased array beams require a high resolution timing vector. The timing coefficients cause speed bottleneck … in FPGA implementation of such systems in the HF frequency range. Distributed Arithmetic (DA)…
Integrated metamorphic and geochronological data place new … constraints on the metamorphic evolution of a Neoproterozoic … orogen in east Antarctica. Granulite-facies rocks from a 150 km … stretch of the Kemp Land coast reflect peak conditions involving … T870^9908C at P74^10 kbar…
Mineral equilibria modelling and electron microprobe chemical dating of monazite in granulite facies … metapelitic assemblages from the MacRobertson Land coastline, Rayner Complex, east Antarctica, are … consistent with an !anticlockwise" Neoproterozoic P–T–t path. Metamorphism occurred at c.
FPGA is a potential medium for DSP implementation of direct conversion transmitters and receivers. However analog interface cannot be ruled out since amplification and other tasks are still in the analog domain. In a previous work…
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…
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…
The impact of ambient ultraviolet (UV)-B radiation on the endemic bryophyte, Grimmia … antarctici, was studied over 14 months in East Antarctica. Over recent decades, Antarctic … plants have been exposed to the largest relative increase in UV-B exposure as a result of … ozone depletion.
Antarctic bryophyte communities presently tolerate physiological extremes in water availability, surviving both desiccation and submergence events.
Climate change is expected to affect the high latitudes first and most severely, rendering … Antarctica one of the most significant baseline environments for the study of global … climate change. The indirect effects of climate warming…
This study examines the molecular-genetic divergence and evolution of Australian aquatic micro-Crustacea Daphnia … and Daphniopsis. The results indicate that species of Daphniopsis are accommodated within the genus Daphnia. Although their phyletic integrity is no longer supported…
Abstract : Well sorted, fine lithic sandstone within the Drygalski Formation at Cape Lockyer on the … southern tip of Heard Island, preserves a diverse terrestrial palynoflora as well as marine diatoms and a few … foraminifera. A combination of these elements suggests a Late Miocene age (10–5 Ma).
A second East Antarctic Baseline Regional Oceanography Krill and Environment survey, termed BROKE-West, was conducted January 10th – February 25th 2006 and covered … CCAMLR Area 58.4.2 west of the Princess Elizabeth Trough in the Weddell-Enderby Basin.
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 international cooperation that makes Antarctica a continent for science has enabled … observations of the Antarctic middle atmosphere that are not possible anywhere else on … Earth. Atmospheric radars operated by Australia (Davis), Japan (Syowa), the UK and the … USA (Rothera)…
The initial aim of the research, beginning in the 02/03 season, was to undertake some … regional mapping of the ice shelf, and to determine if marine ice could be differentiated from … meteoric ice employing the seismic technique. In 2002/2003…