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Abstract Since it is the largest glacier system in Antarctica, the Lambert Glacier basin plays an important role in the mass balance of the overall Antarctic ice sheet.
An assessment of the glaciological and meteorological characteristics of Dome A, the … summit of the East Antarctic ice sheet, is made based on field investigations during the austral summer of … 2004/05.
Ice sheet modelling of Antarctica supports a generally accepted view that most, if not all, currently ice free ground would have been obliterated at the LGM or previous maxima. However…
A field trial for removal of dissolved metal contaminants in water from an abandoned waste disposal site, using ion-exchange … columns of an iminodiacetic acid chelating ion-exchange (IDA) resin, was conducted at Casey Station, Antarctica. An on-site … monitoring technique…
An extensive Pb isotope ratio survey of ∼100 marine sediment samples from near Casey … Station, East Antarctica has been undertaken. Sediment surface grabs and cores were … collected over nine years between 1997–2006 and, following HF total digestion, were … analysed by magnetic sector ICP-MS.
1. Correlational studies of reproductive success are plagued by difficulty over the direction of … causation. For example, improved reproductive success with age can result from increased … experience or reproductive effort, or selection against low-quality phenotypes that survive poorly.
ABSTRACT: Collisions with vessels are a well-documented conservation problem for some populations of large whales (LW) in the Northern Hemisphere. Less attention has been given to incidents in the Southern Hemisphere or to small cetaceans … (SC) worldwide…
Length-at-age data for Patagonian toothfi sh (Dissostichus eleginoides) at Heard Island … (Division 58.5.2) were fi tted using a von Bertalanffy (VB) growth model taking into … account response-biased sampling of fi sh that were aged. Subsampling of random lengthfrequency … (LF)…
Two small-scale Antarctic marine ecosystem surveys were conducted offshore from the Mawson coast ð61266EÞ, in the austral … summers of January 2001 and 2003.
We report a long-term study of offspring sex … ratios in the cooperatively breeding superb fairy-wren … Malurus cyaneus. Detailed study of this species had … revealed a suite of potentially strong selection pressures … on the sex ratio. First…
1. Subordinate helpers in cooperative societies may gain both immediate and future benefits, including paternity and territorial inheritance. However, if such opportunities correlate with rank … in the queue, it is unclear why such queues should be stable. 2.
The geographical distribution of protozoan parasite Cephaloidophora pacifica Avdeev (Order … Eugregarininda) associated with Antarctic krill, Euphausia superba, was examined in samples collected … from the vicinity of the Antarctic Peninsula, near Syowa Station…
[1] Nine years (1997 to 2005) of nighttime hydroxyl (6-2) band rotational temperatures … were measured with a scanning spectrometer over Davis station, Antarctica (68.6S, 78.0E). A novel time series analysis technique is employed to create continuous longterm … time series…
Understanding and characterising the variability of ozone in the lower atmosphere is a key aspect of … regional and global climate assessment. Tropospheric ozone influences climate by absorbing outgoing … longwave terrestrial radiation, thereby acting as a greenhouse gas…
The event that occurred approximately 8200 years ago is the largest excursion in climate since the beginning of the Holocene. In this event we observe the climatic response to a perturbation which provides a probe with which to investigate the stability of interglacial climate.
Information of sea-ice drift is crucial to understand the East Antarctic climate system, and knowledge of sea-ice dynamics is needed to fully explore the effects of cryospheric changes on the ecosystems within the Antarctic pack-ice zone. Satellite-derived sea-ice data cover the Southern Ocean.
Quantifying the contribution of solar variability to past and present climate change has been an important and controversial aspect of climate research. 10Be records from polar ice have played a key role in extending solar activity reconstructions beyond the period of direct observations of the sun.
We investigated the unidirectional fractional density gradient in GSE-z (GzU) of Galactic Cosmic Ray (GCR) by using the data obtained by the Muon detector network. The analysis period is from 1994 to 2005. We found that the yearly averaged GzU show temporal variations.
The galactic cosmic ray (GCR) intensity often shows a dramatic variation responding to the arrival of interplanetary disturbances at the Earth. Aiming to observe such a variation with muon detectors…
This paper presents the average sidereal anisotropy (SA) of sub-TeV galactic cosmic ray intensity observed with a two-hemisphere network (THN) of underground muon detectors over 15 years. The average SA confirms the conclusions derived from the initial 5-year data by THN [1][2]…
Recent data have shown that Dome C, on the Antarctic plateau, is an exceptional site for astronomy, with atmospheric conditions superior to those at any existing mid-latitude site. Dome C, however, may not be the best site on the Antarctic plateau for every kind of astronomy.
The brightness of the night sky at an astronomical site is one of the principal factors that determine the quality … of available optical observing time. At any site the optical night sky is always brightened with airglow, zodiacal … light, integrated starlight…
The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is bound by … its Article II, 3 to follow an ecosystem approach to management. This approach has been extended to … the application of a precautionary approach in the late 1980s. In our review…
Observed changes in temperature and salinity properties on isopycnals across hydrographic sections throughout … the Indo-Pacific are compared with the changes modeled by the coupled climate model, HadCM3. Observations … show cooling and freshening on isopycnals in midlatitudes…