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The oxygen (O2) concentration in the surface ocean is influenced by biological and physical processes. With concurrent measurements of argon (Ar), which has similar solubility properties as oxygen…
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.
In situ cosmogenic 10Be exposure dating, radiocarbon determinations, salt and sediment geochemistry, and rock weathering observations indicate that parts of Larsemann Hills, East Antarctica have been subaerially exposed throughout much of the last glacial cycle…
Australia and New Zealand have interests in, and some responsibilities for, a vast area of the Southern Ocean and the Antarctic continent to our south. These regions are integral components of the Earth system, directly coupled to the climate system, global sea level, biogeochemical cycles…
Mid-latitude Digisonde Doppler velocities, auroral electrojet (AE) indices and cloud-to-ground (CG) lightning strokes during August 2003–2004 were used to study the perturbations in the F-region … vertical drift associated with terrestrial thunderstorms. A superposed epoch analysis (SEA)…
ABSTRACT. The loss of methanesulphonic acid (MSA) from stored ice cores can be significant over … typical storage times, with diffusion to the ice-core surface controlling the loss.
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)…
Lead (Pb) isotope ratios were measured in the marine macroalga Iridaea cordata collected from four locations … in the Windmill Islands, East Antarctica. Based on the masses of thalli collected, samples analysed in … this study were likely to be a mixture of one and two year old thalli.
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…
1. Owing to the detrimental impacts of invasive alien species, their control is often a priority for … conservation management. Whereas the potential for unforeseen consequences of management is … recognized, their associated complexity and costs are less widely appreciated. 2.
During the late 19th and early 20th centuries, when blubber oil fuelled house lamps, the king … penguin population at Macquarie Island was reduced from two very large (perhaps hundreds of thousands … of birds) colonies to about 3000 birds. One colony…