Publications database

An Antarctic circumpolar wave (ACW) of 3- to-4-year period propagated eastward … around the Southern Ocean in covarying sea surface temperature (SST) and sea level … pressure (SLP) anomalies from 1983 through 1992…

There are very strong thermal gradients between the Antarctic continent and the … sea-ice zone, and between that zone and the ocean to the north. As a result of these contrasts … the sea-ice domain is one of strong cyclogenesis and high cyclone frequency.

Antarctic snowfall exhibits substantial variability over a range of time scales, with consequent … impacts on global sea level and the mass balance of the ice sheets. To assess how snowfall has … affected the thickness of the ice sheets in Antarctica and to provide an extended perspective…

Seasonal changes in the photosynthetic and photoprotective pigment content of three species of Antarctic moss; Grimmia antarctici…

A sampling strategy to estimate the annual mean CO2 uptake by the Southern Ocean was … developed by applying 2D Fourier transforms and signal-to-noise ratios to the simulated airsea … CO2 fluxes and ∆pCO2 from an ocean biogeochemical model driven with NCEP-R1.

The distribution of dissolved (D) and acid-dissolvable (AD) Fe, Ni, Cu and Pb in upper water (0-300 m depth) was determined along a transect in the Australia sector (140E) of the Southern Ocean during three cruises conducted from November 2001 to March 2002.

The isotopes of nitrate, which show different dynamics than nitrate concentration during physical transport and nitrate assimilation, provide a complementary constraint in the effort to understand nutrient transport and biogeochemical fluxes in the Southern Ocean. For instance…

: As part of the VERTIGO research program, samples for nitrogen (d15N) and oxygen (d18O) isotopic signatures in nitrate were analyzed from depth profiles and surface transects from the northwest pacific, near station K2 and the subtropical gyre, near station ALOHA. Contrasting productivity, ecology…

Researchers in the SCAR- RiSCC program have been examining the interactions among … climate change, indigenous and alien species, and species and ecosystems function in … terrestrial and limnetic environments spanning an Antarctic environmental gradient of 30° … latitude. This international…

Reduced reproductive success in flipper-banded King Penguins compared to unbanded … penguins has been reported but differences in survival were not found. The “worst-case” survival analysis done by previous researchers assumed that death occurred at the beginning … of the tail chain of absences.

A diverse fouling community discovered encrusting a barge intended for deployment at subantarctic … Macquarie Island is described and its role as a transport vector for non-indigenous marine organisms is … discussed.

For the first time, the cyanobacterial diversity from microbial mats in lakes of … Eastern Antarctica was investigated using microscopic and molecular approaches. The present study assessed the biogeographical distribution of cyanobacteria in … Antarctica.

Between October 2001 and March 2002 six transects were completed at monthly intervals in the Sub-Antarctic Zone … (SAZ) and Inter-Sub-Antarctic Front Zone (ISAFZ)/Polar Frontal Zone (PFZ) in the Southern Ocean south of Australia.

Between November 2001 and March 2002 an Australian/Japanese collaborative study completed six passes of a transect … line in the Seasonal-Ice Zone (south of 621S) along 1401E. Zooplankton samples were collected with a NORPAC net on … 22–28 November, and a Continuous Plankton Recorder on 10…

IPS Radio and Space Services, currently operates three four-receiver Canadian Advanced Digital Ionosondes (CADIs), two at mid-latitudes at Canberra and Camden, and the remaining one at Casey station, Antarctica. The deployment of a fourth unit at Macquarie Island is scheduled for this summer.

>The Southern Ocean is characterised by the unique Antarctic Circumpolar Current (ACC) which flows eastward uninterrupted around the Antarctic continent. In theory then, the species composition of zooplankton would be expected to be the same in any part of the current…

A common technique for comparing the in situ microbial potential for mineralisation of petroleum hydrocarbons in different environments or under different remediation strategies, is by use of radiolabelled tracer studies.

Space weather is the name given to variations in the plasma speed and density, the solar magnetic field and the radiation density in the near Earth space environment and the consequences of those variations. The consequences can be quite dramatic and have significant economic impact.

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.

Since the first lidar observation of polar mesospheric clouds (PMC) in 1989 by a Na lidar at Andoya, extensive PMC observations have been made by lidars in both the northern and southern hemispheres. The lidar observations provide precise information on PMC altitudes, layer structure…