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The polar upper atmosphere is receiving increasing interest as a natural laboratory to investigate processes and phenomena under extreme conditions, and to detect atmospheric change. During summer, temperatures in the high-latitude mesopause region (80–95 km altitude)…
We used a Rayleigh lidar located at Davis station, East Antarctica, to compare Polar … Mesospheric Cloud (PMC) and stratospheric gravity wave (GW) strengths in the … austral summer 2005–2006.
[1] Using Rayleigh lidar and Mesosphere-Stratosphere- … Troposphere radar at Davis Antarctica (68.6S) during the … 2005–2006 austral summer, we obtained the first Southern … Hemisphere common-volume measurements of Polar … Mesospheric Clouds (PMC) and Polar Mesosphere … Summer Echoes (PMSE).
The Spanish system of longline fishing is used in a range of demersal and semi-pelagic fisheries … throughout the southern hemisphere and has been the source of a large number of seabird fatalities.
Results of ongoing investigations into patterns of interannual variability in total column ozone as measured by the Bureau of Meteorology’s Dobson network over the Australian region are presented. At all latitudes, total column ozone increases during winter and spring…
Analysis of zonal anomalies in total ozone and thermal tropopause height shows … that ozone depletion during austral spring has a strong influence on the height … and sharpness of the tropopause over West Antarctica. The seasonal change of tropopause … peak height occurs between 9 km…
Interactions between short-beaked common dolphins Delphinus delphis and the … fishing industry of South Australia (SA) have lead to serious concerns over the … long-term viability of the local dolphin population.
A recently developed temperature-dependent semiempirical thermodynamic ion-exchange model is used to … predict ion-exchange equilibrium behavior of a binary and ternary system onto a natural zeolite material. The … ion-exchange system involves the cations ammonium, potassium, and calcium…
Iron(III)-uptake mechanisms in bacteria indigenous to the Antarctic, which is the most Fe-deficient … continent on Earth, have not been extensively studied. The cold-adapted, Antarctic bacterium, Shewanella gelidimarina, does not produce detectable levels of the siderophore, putrebactin…