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A new all-sky imaging Fabry-Perot spectrometer … has been installed at Mawson station (67360 S, 62520 E), Antarctica. This instrument is capable of recording independent … spectra from many tens of locations across the sky simultaneously. Useful operation began in March 2007…
With the development of next generation aircraft designs capable of ultralong-range flight and … extended flight endurance…
Species of the genus Pyramimonas (Prasinophyceae) are a common, widespread, but minor component of the Antarctic marine phytoplankton. They are … often associated with the seasonal sea-ice environment. Pyramimonas gelidicola … (McFadden, Moestrup & Wetherbee, 1982)…
The ICECAP project represents a return to the long-range, internationally collaborative … Antarctic aerogeophysics last seen in the 1970’s SPRI/NSF/TUD project. ICECAP is a joint … IPY collaboration between the University of Texas at Austin (funded by NSF), the University of … Edinburgh…
Sub-ice shelf bathymetry remains a poorly known but important boundary condition for … models of sub-ice shelf circulation and the distribution of basal melt and accretion. Surfacebased … seismic surveys are traditionally used to determine sub-ice shelf bathymetry…
Polar stratospheric gravity wave activity is studied using data from the Constellation … Observing System for Meteorology, Ionosphere and Climate (COSMIC) Global … Positioning System Radio Occultation (GPS-RO). Waves with vertical wavelengths of … 2 to 15 km are considered.
We conducted a scanning electron microscopic survey of morphological variations in the … calcareous nanoplankton species Emiliania huxleyi in Southern Ocean surface water samples … collected along a transect from 43 to 64° S and 141 to 145° E during November 2001, October to … February 2002/2003…
The CRAC-ICE project aims at monitoring the calving of the Mertz Glacier tongue in East … Antarctica, an ice tongue which extends 140km from its grounding line. Legresy et al. (2004)…
We discuss an upcoming international airborne survey targeting two of the East Antarctica Ice Sheet's (EAIS) enigmatic … subglacial basins. Using a multi-instrumented long range aircraft we will address key issues in the origin and fate of … Earth's largest ice sheet.
Measurements of the microwave backscatter coefficient in the ku-band have been obtained over the Antarctic snow cover by the NSCAT wind scatterometer instrument on the ADEOS satellite from August 1996 to June 1997. The instrument has six antennas arranged with two directed forwards…
This paper describes an image analysis technique developed to identify icebergs depicted in synthetic aperture radar images of Antarctica, and to determine the outlines of these icebergs. The technique uses a pixel bonding process to delineate the edges of the icebergs.
Terrain analysis of vegetation distribution and satellite image classification generally require training data from numerous field sites. On remote subantarctic islands, where access is difficult and the opportunities for aerial photography are limited by cost and weather conditions…
The Australian Antarctic Data Centre is considering ways to modify the Biodiversity Database to improve the management of non-native species records. A new facility to associate images with species records could assist with species identification…
Changes in buoyancy during an animal’s time at sea are a powerful tool for inferring … spatial and temporal foraging success. Buoyancy can be difficult to measure, but in some species of … seal, drift components of dives can be used.
Understanding the cryptic lives of wide–ranging wild animals such as seals can be challenging, but with the … advent of miniaturised telemetry and data–logging devices this is now possible and relatively straightforward. However…
Serum 25(OH)D levels decline without sunlight … exposure. We studied 120 expeditioners to Antarctica to … determine the skeletal and hormonal responses to sunlight … deprivation. With emerging vitamin D insufficiency, serum … calcium decreased, PTH increased…
Ozone hole over Antarctica exists almost three decades each austral spring.
The zonal anomalies data in total ozone and thermal tropopause height … shows that ozone depletion during austral spring has a strong influence on … the height and sharpness of the tropopause over West Antarctica.
The Global Muon Detector Network (GMDN) was … completed by installing a multi-directional cosmic-ray muon … hodoscope in Kuwait University in March 2006. The GMDN is … currently consisting of four multi-directional muon detectors … located at Nagoya (Japan), Hobart (Australia), Sao Martinho …
The mantis shrimps (Stomatopoda) are quintessential marine predators. The combination of powerful raptorial appendages … and remarkably developed sensory systems place the stomatopods among the most effi cient invertebrate predators.
Accurate measurement of fundamental parameters, such as temperature, density and composition, through the whole atmosphere and over long time scales is vitally important to identify and quantify changes in the earths climate, whether natural or anthropogenic.
Pre-HEAT is a 20 cm aperture submillimeter-wave telescope with a 660 GHz (450 micron) Schottky diode heterodyne … receiver and digital FFT spectrometer for the Plateau Observatory (PLATO) developed by the University of New South … Wales. In January 2008 it was deployed to Dome A…
The temporal evolution of the subauroral polarization stream (SAPS) is investigated … using the Doppler velocity observations by the Unwin HF radar in conjunction with … the simultaneously observed auroral luminosity and plasma convection reversal regions. The event under study of 14 December 2004…
We present a statistical analysis of short-range E region echoes observed by the Super … Dual Auroral Radar Network (SuperDARN) HF radars in the evening sector (16–22 … MLT) over 3 years. Significant populations of the high-velocity (350–450 m/s)…