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Earthquakes occur in Antarctica. The previously held notion that Antarctica is … essentially aseismic has been disproved by using records from established Global … Seismic Network stations and recently deployed temporary stations on the Antarctic … continent. However…
Atmospheric ionization by solar protons has traditionally been … modeled using top-of-atmosphere (TOA) particle fluxes measured … by near-Earth spacecraft, and as a consequence have been … restricted to particle energies below ~500 MeV. However…
Law Dome, in coastal East Antarctica, is a relatively low-latitude site (6646S) with a strong maritime … climate, dominated by cyclonic precipitation which produces high snow accumulation rates and very … well-resolved ice core records.
Ice cores from Law Dome, in coastal East Antarctica, provide climate records that have strong connections to … the Southern Ocean and mid-latitude climate in the … Australian region. The overall climate history available from … Law Dome extends back for tens of millennia…
Hybridization among organisms can potentially contribute to the processes of evolution, but this depends on the fitness of hybrids relative to parental species. A small, recently … formed population of fur seals on subantarctic Macquarie Island contains a high proportion … of hybrids (17–30%)…
Human impacts on natural systems can cause local population extinctions, which may promote … redistribution of taxa and secondary contact between divergent lineages. In mammalian … populations that have mating systems shaped by polygyny and sexual selection…
the glaciation and isolation of the Antarctic continent completed by ~10 million years ago, and not by the sequential break-up of Gondwana (completed by ~32 million years ago). More recently…
Abstract. An eddying global model is used to study the characteristics … of the Antarctic Circumpolar Current (ACC) in a … streamline-following framework. Previous model-based estimates … of the meridional circulation were calculated using … zonal averages:
We reexamine the relationship between circulation, bathymetry, and surface … chlorophyll in the Southern Ocean, using new high-resolution maps of the frontal structure … of the Antarctic Circumpolar Current (ACC) derived from satellite altimetry.
Repeat hydrographic sections occupied in 1995 and … 2005 reveal a rapid decline in the salinity and density of … Antarctic Bottom Water throughout the Australian Antarctic … Basin. The basin-wide shift of the deep potential … temperature-salinity (qS)…
The spatial and temporal characteristics of cyclonic eddies in the Antarctic … Divergence off Ade´lie Coast are described using repeated in situ observations between … 2001 and 2003, satellite observations, and results of a high-resolution ocean general … circulation model.
Power spectral density (PSD) of cosmic rays has been calculated from hourly … averaged counts observed by underground muon telescopes located at Mawson over the … low-frequency range 2.7 ×10−7 –1.4 × 10−4 Hz. The first two harmonics of the solar daily … variation are well defined for even cycles…
The quasi-stationary asymmetry of total ozone … over Antarctica during spring is studied by TOMS data during … the period 1979–2005.
The Mansurov effect, which for the Southern Hemisphere consists of a positive … association between the By component (east-west) of the interplanetary magnetic field … (IMF) and the ground-level pressure for stations poleward of 80 magnetic latitude, is … confirmed for Vostok (78.5S, 106.
Extreme solar processes at the Sun on 2001April 15 accelerated protons to relativistic energies, resulting in a groundlevel … enhancement in cosmic rays observed at Earth. The GOES 10 spacecraft measured the proton flux directly…