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Ground-based Fabry-Perot spectrometer observations from the Australian Antarctic stations of Davis and Mawson show an upward wind ~100 m s-1 in the thermosphere at ~240 km altitude on the night of Day of Year 159 in 1997.
A series of recruitment experiments using Artificial Substrate Units were deployed in the nearshore waters of Casey Station, (66o17’S, 110o32’E) to investigate spatial and temporal variation in the community structure of small motile invertebrates.
We are using techniques of molecular genetics to investigate the extent of genetic diversity in Antarctic mosses. The RAPD technique has proven especially useful in demonstrating that these mosses exhibit extensive genetic variation (levels being similar to those in temperate regions)…
A directional anisotropy is observed in backscatter from the surface of the East Antarctic ice sheet as measured by the C-band wind scatterometer carried by the ERS-1 satellite. The anisotropy is characterised by the amplitude of the variation with azimuth of the backscatter coefficient…
The extent of genetic variation and dispersal mechanisms were investigated over short distances of 1 – 100 m and up to 3 km, by the RAPD technique, for the moss Sarconeurum glaciale at three locations on Ross Island, Antarctica. At Arrival Heights, genetic variation occurred within single colonies…
Bathymetric, sidescan sonar and high-resolution seismic data indicate that the shelf off Mac. Robertson Land, East Antarctica is deeply eroded by glaciers and currents. Basement is exposed over wide areas. Data available include MCS and 3.5 kHz obtained by Stagg (1985) in 1982 (see OBrien et al.…