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In recent years there has been increasing pressure at the international level to improve environmental management in the Antarctic. The Protocol on Environmental Protection to the Antarctic Treaty (the Madrid Protocol)…
currents, tides, dispersion, casy station, shannon bay, newcomb bay
Molecular based and traditional microbiological techniques were utilized to determine thestructure and degree of cold adaptation of a variety of Antarctic bacterial communities.
Oxyphotobacteria ascribed to the genera Synechococcus and Synechocystis are widely distributed in Arctic and Antarctic lakes, yet they are poorly represented in the marine polar environment. Arctic lakes contain phycoerythrin-rich as well as phycocyanin-rich … picoplankton…
Heard Island has important historic sites relating ot hte hnting of elephant seals and various scientific activities, which are noted in the Workd Heritage citation for the island. Some, especially sealing sites, are generally acknoweldged to have historic value, but the value of later sites…
A review of popular writing on the subject of preservation of historic sites in Antarctica, including buildings, graves and artefacts, has revealed many misconceptions about the existence and cause of deterioration problems.
Infrared astronomy has made remarkable progress over the past quarter century. This paper, which is a brief summary of the 1999 Ellery Lecture, outlines the importance of … the infrared, traces some of the key Australian developments in the field…
Measurements of the mid-infrared sky brightness at the South Pole throughout the winter of 1998 show that the sky background is … extremely low and stable. For 50% of the time, the flux in the 8.78 to 9.09 ?m window is below 50 Jy per square arcsecond.
In order to fully characterize the astronomical potential of remote sites on the antarctic plateau, we have developed a suite of instruments covering UV to sub-millimeter … wavelengths. In addition…
Over the past few years, site-testing at the South Pole has revealed conditions that are uniquely favorable for IR astronomy. In particular…
The development of a semi-automated batch HG-AFS method for the shipboard determination of As(III), As(V), MMA and DMA is described. Procedures in the analytical sequence including addition of NaBH4 to samples, cooling and heating the U-trap used for preconcentration and separation of the arsines…
Seasonal changes in the photosynthetic and photoprotective pigment content of three species of Antarctic moss; Grimmia antarctici…
We are using molecular genetics techniques to investigate (a) the overall level of genetic diversity in Antarctic mosses, (b) the spatial arrangement and mutation levels within populations, (c) their taxonomic relationships and origins, (d) the effect of climate change on mutation levels, and (e)…
As well as determining the amount of solar radiation available for photosynthesis, the surface reflectance and absorptance characteristics of plants are their first defence against damaging effects of solar radiation. The solar spectrum can be damaging to plants in many ways. At shorter wavelengths…