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The Amery Ice Shelf, East Antarctica, undergoes high basal melt rates near the southern … limit of its grounding line where 80% of the ice melts within 240km of becoming afloat. A considerable … portion of this later refreezes downstream as marine ice.
Techniques are presented for generating thermal infrared and … visible composite images from cloud-free portions of MODIS … (MODerate resolution Imaging Spectroradiometer) images … closely spaced in time, with a focus on studies of landfast sea … ice along the East Antarctic coast.
During austral spring 2003, mesoscale sea ice drift and deformation off East … Antarctica were investigated using in situ data from a nine-buoy array. Upon deployment, the array comprised an area of about 4000 km2 with a mean ice concentration of 96%.
This paper presents details of techniques for generating … thermal infrared and visible composite images from the … cloud-free portions of temporally closely spaced MODerate resolution … Imaging Spectroradiometer (MODIS) images…
The long-standing mainstay of support for C. T. R. Wilson’s global circuit hypothesis is the similarity … between the diurnal variation of thunderstorm days in universal time and the Carnegie curve of electrical … potential gradient.
The Antarctic climate system varies on timescales from orbital, through millennial to sub-annual, and is closely coupled to other parts of the global climate system.
We applied a multivariate statistical modelling technique called boosted regression trees to derive relationships between environmental conditions and the distribution of the adult stage of the cyclopoid copepod Oithona similis in the Southern Ocean.
Euphausiids are vital components of many oceanic foodwebs. Due to their large size, they are key prey … species for many vertebrates, and several species are subject to commercial fisheries. The best studied … euphausiid species is Antarctic krill (Euphausia superba)…
Seabird surveys in January – March 2006 of a poorly known area of the Southern Ocean … adjacent to the East Antarctic coast identified six seabird communities, several of which were … comparable to seabird communities identified both in adjacent sectors of the Antarctic…
The Network for the Detection of Mesopause Change (NDMC) is a global program with the mission to promote international cooperation among research groups investigating the mesopause region (80-100 km) with the goal of early identification of changing climate signals.
Kinetic temperature profiles are retrieved from limb-emission radiance measurements of CO2 at 15 and 4.3 um … by the SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) instrument on the TIMED … (Thermosphere Ionosphere Mesosphere Energetics and Dynamics) satellite.
A climatology of hydroxyl (6-2) band temperatures has been derived from 15 consecutive years of scanning … spectrometer measurements at Davis station (68°S, 78°E), Antarctica.
Molecular markers and morphological characters can help infer the colonization history of organisms. A combination of mitochondrial (mt) D-loop DNA sequences, nuclear DNA data, external measurements … and skull characteristics shows that house mice (Mus musculus)…
This study presents the first analysis of the energetics … associated with a hybrid cyclone’s transition in the Southern … Hemisphere, Hurricane Catarina (March 2004). Catarina has … earned a place in history as the first documented South … Atlantic hurricane…
The association between Southern Hemisphere cyclones and anticyclones and the El Niño–Southern … Oscillation (ENSO), southern annular mode (SAM), Antarctic sea ice extent (SIE), and rainfall in Perth … and Melbourne is explored. Those cities are, respectively…
Physiological measurements of both stress and … sex hormones are often used to estimate the consequences … of natural or human-induced change in ecological studies of … various animals. DiVerent methods of hormone measurement … exist…
Aim We examined the genetic structure among populations and regions for the … springtails Cryptopygus antarcticus antarcticus and Gomphiocephalus hodgsoni … (Collembola) to identify potential historical refugia and subsequent colonization … routes…
The Phase A design study of PILOT|the Path nder for an … International Large Optical Telescope|has demonstrated that a wide- … eld 2.5 m optical/IR telescope can be constructed at Concordia for a … reasonable cost. There are no technical \show stoppers"…
Terrestrial systems in Antarctica are characterized by substantial spatial and temporal variation. However, few studies have addressed the paucity of data on metabolic responses to the unpredictable … Antarctic environment, particularly with regard to terrestrial biota.
A new all-sky imaging Fabry-Perot spectrometer … has been installed at Mawson station (67360 S, 62520 E), Antarctica. This instrument is capable of recording independent … spectra from many tens of locations across the sky simultaneously. Useful operation began in March 2007…
Atmospheric ionization during Solar Proton Events (SPE) has traditionally … been modeled using top-of-atmosphere (TOA) particle fluxes measured by near- … Earth spacecraft, and as a consequence the modeling has been restricted to … particle energies below ¡ 500 MeV. However…
Quantifying the contribution of solar variability to past and present climate change has been … an important and controversial aspect of climate research.
Superposed epoch analysis (SEA) was used to examine ionospheric drift velocities measured by a digital … ionosonde located at the mid-latitude station Bundoora (145.11E, 37.71S geographic), near Melbourne. The control times for the SEA were the times of cloud-to-ground (CG)…
A study to assess the potential exposure to solar UV radiation of … expeditioners on Australian Antarctic resupply voyages was … carried out over the Austral summers of 2004 ⁄ 2005 to … 2006 ⁄ 2007. Subjects wore UVR-sensitive polysulphone (PS)…