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Monitoring of zooplankton communities in the northern hemisphere has provided valuable … insights into plankton / climate interactions, and changes to plankton communities have been … shown to impact significantly on higher trophic levels.
Significant changes in zooplankton composition have occurred in various ocean systems in … recent years. These changes can be quite dramatic, occurring within one or two seasons, as … happened with the regime shift in the North Sea and North Atlantic in the late 1980s.
Ozone depletion has enhanced exposure of Antarctic marine microbes to biologically … damaging ultraviolet-B radiation (UVBR, 280-320 nm). Increased UVBR exposure may … influence the production of climatically active, biogenic sulfur compounds … (dimethylsulfoniopropionate…
We determined the effects of UVR (280 – 400 nm) on Antarctic marine protists over the … summer of 2001/02 in incubation experiments with light exposures of PAR, PAR+UVAR and … PAR+UVAR+UVBR.
One of the aims of the Antarctic Pack-Ice Seals (APIS) program was to determine the … distribution and habitat use of seals inhabiting the pack-ice surrounding Antarctica. The … Australian contribution to APIS focussed on the sector of pack-ice off east Antarctica between … 60-150oE.
Regionalisation algorithms attempt to partition a broad spatial area into discrete spatial regions, each with relatively homogeneous environmental or biotic conditions. Marine regionalisations commonly make use of data that can be represented naturally in a network context…
Sea ice is an important structuring element of Antarctic marine ecosystems and provides a vast habitat for ice-associated algae forming communities in different horizons of the ice floes.
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)…
A solar occultation sensor, the Improved Limb Atmospheric Spectrometer (ILAS)-II, measured 5890 vertical profiles of ozone concentrations in the stratosphere and lower … mesosphere and of other species from January to October 2003. The measurement latitude … coverage was 54–71°N and 64–88°S…
A survey of the size characteristics of the population of icebergs around the whole of the … Antarctic coastline was carried out using synthetic aperture radar images. A total of 36…
A field experiment investigating the effect of oil contamination on benthic microbial communities was conducted near Casey Station, East Antarctica.
Prior to environmental legislation in the 1980s, anthropogenic waste in Antarctica was often deposited into … landfill sites or into the sea. This resulted in metal contamination in terrestrial and near-shore marine … environments. In this study…
Snow accumulation rates at the summit of Law Dome are examined on three different … timescales. For the full record covering the last ~ 90,000 years accumulation rate is … determined as an output of the model used for ice core dating.
Four years of Rayleigh lidar and supporting radiosonde balloon data are used to study the … influence of wave activity on Polar Stratospheric Clouds (PSC) from an Eastern Antarctic … coastal site.
An 11 year climatology (1995-2005) of mesopause region temperatures over Davis station, Antarctica (68°S, 78°E) has been derived from hydroxyl rotational spectra measured using a … scanning spectrometer.
For over a century, atmospheric electricity data has been collected from all over the world, as well as from space. For the last thirty years, Antarctica has been the observatory site of … choice for atmospheric electricity studies.
The dominant generator of the atmospheric electric circuit is meteorological activity in the … form of thunderstorms and electrified clouds, while the flow of the current within the circuit is … principally controlled by atmospheric ionisation by cosmic rays.
The atmospheric tides are a dominant and persistent feature of the mesosphere and lowerthermosphere … region of the atmosphere which spans from 80 to 120km above the Earth’s … surface. The tides…