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The Australian Community Ocean Model (AusCOM) is an initiative by the Australian climate … sciences community (including government and academic research laboratories) towards a unified … coupled ocean-seaice model for climate applications.
In this study, we measure the silicon-isotopic composition d29Si,%, relative to NBS28 … quartz standard) of dissolved silicon and biogenic silica collected by sequential melting … from spring Antarctic pack ice collected near 117E-64.5S.
Growth conditions in Antarctica are extreme, and the few plants that can … grow there are exposed to a highly seasonal, rapidly variable and often … extreme climate. In recent decades, these plants have also been exposed to … increased levels of UV-B radiation (UV-BR)…
The Doppler velocity and spectral width are two … important parameters derived from coherent scatter radar … systems. The Super Dual Auroral Radar Network (Super- … DARN)…
An image of the dayside low-energy ion outflow event … that occurred on ] 6 December 2003 was constructed with … ground- and space-basedG PS (Global Positioning System) Total Electron Content (TEC) data and ion drift metcr data … from the DMSP (Defense Meteorological Satellite Program)…
Electromagnetic ion cyclotron (EMIC) waves are generated in the equatorial … region of the plasmasphere-magnetospherbey internal wave-particle interaction … with ring current ions. In ground observations they are observed as Pc 1-2 (0.1-5 … Hz) waves…
A review is presented of passive coherent and incoherent radar observations of … ultra-low-frequency (ULF) waves. Passive radars primarily observe the ionospheric … signatures of the shear Alfven field line resonance (FLR). Recent results … include:
The field of ultra-low frequency (ULF) wave research is an important piece in … the jigsaw of the dynamics of the Earth's magnetospheric system. These waves are … recognized through their interactions with particles and fields, and energy transfer … processes.
The seasonal variation of ozone in the troposphere and lower stratosphere above … Global Atmosphere Watch stations Macquarie Island (in the subantarctic) and Davis … (in Antarctica) is examined using three years of ozonesonde measurements.
Fresnel transform meteor speed estimation is … investigated. A spectral based technique is developed allowing the transform to be applied at low temporal sampling rates. Simulations are used to compare meteoroid … speeds determined using the Fresnel transform and alternative techniques…
Concentrations of UV-B absorbing pigments and anthocyanins were measured in three moss species, over a summer growing season in Antarctica. Pigment concentrations were compared with a range of climatic variables to determine if there was evidence that pigments were induced by UV-B radiation…
The recent discovery of exceptional seeing conditions at Dome C, Antarctica, raises the possibility … of constructing an optical observatory there with unique capabilities. However, little is known from an astronomer’s … perspective about the optical sky brightness and extinction at Antarctic sites.
L-band data of 30 Doradus at 3.5 ìm taken with SPIREX (South Pole Infrared Explorer) is presented. The photometry … was combined with 2MASS JHK data at 1.25 -2.2 ìm. Colour-colour and colour-magnitude diagrams are constructed and used to determine the sources with infrared excess.