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Space weather forecasting is a very important tool for the space situational awareness to the space objects, the space environment and related threats and risks for manned and non-manned spacecrafts. The global network of ground based multi-directional detectors (GMDN)…
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.
Submillimetre astronomy is the prime technique to unveil the birth and early evolution of stars and galaxies in the local … and distant Universe.
DNA-based techniques have proven useful for defining trophic links in a variety of … ecosystems and recently developed sequencing technologies provide new opportunities … for dietary studies. We investigated the diet of Australian fur seals (Arctocephalus pusillus … doriferus)…
The Agreement on the Conservation of Albatrosses and Petrels (ACAP) is a newly-constituted international treaty that as yet may be little … known to marine ornithologists around the world. We outline the rationale for the existence of the Agreement, the history of its development…
We describe a large-angle survey for fast, optical transients: gamma ray bursts (GRBs), supernovae (SNe), lensed and … transiting planets, AGNs and serendipitously found objects.
This paper outlines work at La Trobe University on the development of a “fully digital” radar for space weather … investigations. The new radar will enhance the existing Tasman International Geospace Environment Radar … (TIGER) that probes beyond the horizon…
Quantization is a representation of data samples with a certain number of bits per sample after rounding to a suitable … level of precision. Quantization errors in a Digital Signal Processing (DSP) system can be introduced from three … sources; one source is input quantization…
The 2002 revision of the UV index (UVI) issued by the World … Health Organisation (WHO), the World Meteorological Office … (WMO), the United Nations Environment Programme … (UNEP) and the International Commission on Non-Ionizing … Radiation Protection (ICNIRP) (World Health Organization … [2002]…
Long term acoustic records of underwater sound can be used to assess the timing of migrations, peak periods of … relative abundance, and seasonality and overlap of different species’ presence over large spatial scales.
The depth distributions of eight groups of phytoplankton were determined along eight north-south transects between longitudes 80„aE and 150„aE, from 63„aS to the sea ice edge or beyond.
The distribution and abundance of phytoplankton communities off east Antarctica were surveyed using CHEMTAX analysis of HPLC pigment profiles, supplemented by microscopy. Eight north--south transects … were surveyed between 80°E and 150°E, from approximately 63°S to the sea-ice, during Jan.--Mar.
The Ice Station Polarstern (ISPOL) was a drifting ice station experiment in the western … Weddell Sea during November and December 2004.
The international Antarctic science community collects an amazing amount of information about wildlife. Traditionally, this information has gone into field notebooks and more recently, software such as Excel®.
Until recently, the IGS network of global tracking sites was predominently populated y Rogue/Turborogue GPS receivers. Firmware used in these receivers was found to perform poorly during periods of high ionospheric disturbances and, during 1999/2000…
Digital magnetometer data have been collected from Davis (68.58°S, 78.0°E) since 16 February 1988 and from Casey (66.28°S, 110.5°E) since 17 January 1989. The processing of the variometer data from Casey has been transferred to the Australian Geological Survey Organisation (AGSO)…
A UMLCAR ( University of Massachusetts Lowell, Centre for Atmospheric Research) Digital Ionosonde (DPS-4) has operated at the Australian Antarctic polar cap station Casey (80.8oS geomagnetic latitude) since early 1993, primarily to study the dynamics of the southern polar cap ionosphere.
The Antarctic Fibre-Optic Spectrometer (AFOS) is a 30cm Newtonian optical telescope that injects light through … six 30m long optical ¯bres onto a 240¡850nm spectrograph with a 1024 x 256 pixel CCD camera.
South Georgia (540S; 380W) lies 350 km south of the Polar Front in the south-west Atlantic Ocean. It is a key global location for albatrosses: at the last all-island census in 1986, it was estimated that approximately 92,500 pairs of grey-headed albatrosses (most important global site), 101…
Terrestrial ecosystems of southern ocean islands have enjoyed renewed attention recently. Stimulated by findings that their climates are changing dramatically, outcomes include an enhanced understanding of the biogeography of this region…
Beaufort Island, Ross Sea, Antarctica, is a Specially Protected Area originally designated on account of, and still supporting, a small winter sea ice breeding colony of Emperor penguins, a large summer breeding colony of Adélie penguins, and several colonies of Skuas. A substantial area of moss…