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Over recent decades, Antarctic plants have been exposed to the … largest relative increase in UV-B exposure as a result of ozone … depletion. Open-sided plexiglass screens were used to reduce UV … levels by 77% over turves of the endemic Antarctic bryophyte, Grimmia antarctici…
This study represents the first investigation into the feasibility of using remote sensing to map and monitor the vegetation of sub-Antarctic islands. There have previously been no studies using satellite technology to remotely sense vegetation change in the Antarctic or sub-Antarctic regions…
Antarctic vegetation is exposed to elevated levels of UV-B … radiation (UVBR) as a result of ozone depletion. Three species of … co-occurring Antarctic bryophytes, Bryum pseudotriquetrum…
Abstract … Little effort has been devoted to differentiating between hydrocarbon losses through evaporation and biodegradation … in treatability studies of fuel-contaminated Antarctic soils. When natural attenuation is being considered as a treatment … option…
Dome C, Antarctica (75 S, 123 E; 3250 meters) is one of the coldest and driestlocations on Earth, with exceptionally low winds throughout the atmosphere. It therefore has the potential to be an ideal site for astronomical observations.
Astronomers have always sought the very best locations for their telescopes. From … observatories in city centres, astronomers moved first to nearby mountain tops, then to … remote sites in distant countries, to aircraft, and into space.
The AASTINO (Automated Astrophysical Site Testing INternational Observatory) is a remote … laboratory that has been operating at Dome C station on the Antarctic plateau since January 2003. It … is designed to run throughout the Antarctic winter without intervention…
Within a 6-minute span on January 20, 2005, the count rate registered by a neutron monitor at the sea level … station of McMurdo, Antarctica increased by a factor of 30, while the rate at the high-altitude (2820 m) site … of South Pole increased by a factor of 56.
Two calibration neutron monitors were completed in September 2002. These instruments are designed to … provide an intercalibration between the 40-odd neutron monitors around the world, so that rigidity spectra … can be calculated from them.
Besides producing the largest ground level enhancement (GLE) in half a century, the relativistic solar particles … detected during the event of January 20, 2005 showed some interesting temporal and directional features, including extreme anisotropy.
[1] Temperature observations between 20 and 120 km … from the SABER instrument on the TIMED spacecraft are … used to investigate the nature of planetary wave activity … during the 60 days prior to the midwinter stratospheric … warming that commenced on 26 September…
In order to assess seasonal and spatial changes in diet, the ä15N and ä13C signatures of … vibrissae from leopard seals Hydrurga leptonyx obtained from Prydz Bay, Eastern Antarctica, were … compared with those of a captive seal on a known diet. Using the isotopic signatures of known prey…
Blood protein analysis including total serum protein and albumin by chemical methods, fibrinogen estimation and serum protein electrophoresis (SPE) was performed on the leopard seal, Hydrurga leptonyx. The most commonly observed SPE pattern was eight fractions designated albumin, a1a, a1b, a2a, a2b…
The dynamics of animal populations are determined by several key demographic parameters, which vary over time with resultant changes in the status of the population. When managing … declining populations, the identification of the parameters that drive such change are a high priority…
A real-time video camera probe was deployed in a hot-water drilled borehole through the … Amery Ice Shelf, East Antarctica, where a total ice thickness of 480m included at least 200m of basal … marine ice.
We report on the first Southern Hemisphere comparison between polar mesosphere summer echoes (PMSE) and cosmic noise absorption (CNA). Observations were obtained during the austral summer of 2003–2004 from a 55 MHz MST radar, a 38.