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A Raman depolarization lidar was deployed at Cape Grim, Australia (40.7°S, 144.7°E), at the northern edge of the Southern Ocean from July 2013 to February 2014 from which we determine cloud boundaries, cloud phase, ice virga, and cloud effective top heights.
We present an overview of … state-of-the-art chemistry–climate and chemistry transport models that … are … used within phase 1 of the Chemistry–Climate Model Initiative (CCMI-1).
Missing gravity wave drag near 60 degrees south has been proposed as the cause of the common cold bias in modelled southern polar stratospheric temperatures [McLandress et al. 2012]. Potential gravity wave momentum sources around those latitudes, such as jets…
Radiative forcing resulting from stratospheric aerosols produced by major volcanic eruptions is a dominant driver of climate variability in the Earth's past.
During the last deglaciation (21,000 to 7,000 years ago) global sea level rise was punctuated by several abruptmeltwater spikes triggered by the retreat of ice sheets and glaciers world-wide. However, questions regarding therelative timing…
The Southern Hemisphere Imaging Riometer Experiment (SHIRE) is a phased array of radio receivers that observes the Antarctic sky at 38 MHz. It detects ionospheric absorption of cosmic radio noise near an altitude of 90km and is used to study the aurora and other high-latitude ionospheric phenomena.
One of the serious threats to the Antarctic marine ecosystem is the release of large volumes of petroleum fuel. Numerous fuel spill incidents have occurred and risks of a major spill are increasing due to continued expansion of human activity in the Antarctic region.
Terrestrial fuel spills in Antarctica commonly occur on ice-free land around research stations as the result of human activities. Successful clean-up of spills not only requires appropriate remediation strategies and technologies that are effective in cold climates…
Several fuel spills have occurred near Australia’s Antarctic stations, associated with the use of SAB diesel for power generation. This has resulted in significant petroleum hydrocarbon contamination in soils.
Fuel spills in Antarctic waters are increasingly likely with the rise in shipping in the region related to tourism and research activities, both of which require and transport large quantities of fuel. While fuel dispersants are not currently used in the management of fuel spills in Antarctica…
Poa annua is the most widespread alien species in the sub-Antarctic, occurring on all major island groups and is invasive and spreading on the Antarctic Peninsula. P. annua colonises areas disturbed by human activity, seal wallows, penguin rookeries and glacial moraines.
Terrestrial fuel spills in Antarctica commonly occur on ice?free land around research stations as the result of human activities. Successful spill clean?ups require appropriate targets that confirm contaminated sites are no longer likely to pose environmental risk following remediation.
Although many Quaternary records have allowed the study of major glacial-interglacial change in the … Southern Ocean, Holocene records from deep-sea cores are few and far between and are currently … limited to the South Atlantic. Low sedimentation rates combined with deep seafloors…
Manipulative field studies are useful for investigating cause–effect relationships between contamination and benthic community health. However…
Evaluating the demographic trends of marine top predators is critical to understanding the processes involved in the ongoing rapid changes in Antarctic ecosystems. However, the remoteness and logistical complexity of operating in … Antarctica, especially during winter…
Trends in surface atmospheric variables, namely temperature, wind speed and direction, cloud cover, and precipitation, display subtle patterns that are likely linked to climate change and the major modes of climate variability. In particular…
The ozone hole over Antarctica is formed inside polar stratospheric vortex, which is under influence of large-scale planetary waves. The Quasi-stationary wave (QSW) in the spring Southern Hemisphere (SH)…
Detailed knowledge of the sub-glacial morphology of large ice sheets is essential for … refining ice sheet models and the associated sea-level rise predictions under a warming … environment.