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The 2012 ozone hole was one of the smallest since the late 1980fs due to a warmer than normal mid]lower … stratosphere over the Antarctic region this year. The development and recovery of the 2012 ozone hole will … be shown via a set of metrics based on the Ozone Monitoring Instrument (OMI)…
We … use … a … set … of … metrics … for … the … polar … atmosphere … to … characterize … and … assess … the … performance … of … the … ACCESS-1.0, ACCESS-1.3 … and … CSIRO-Mk3.6 … coupled … ocean-atmosphere … general … circulation … models … over … the … recent … historical … period.
The origins and evolution of sub-Antarctic island floras are not well understood. In particular there is … uncertainty about the ages of the contemporary floras and the ultimate origins of the lineages they contain. Pringlea R. Br. (Brassicaceae)…
The Australian Antarctic Division has developed a long term coastal monitoring program at Australia’s Casey Station in East Antarctica. This evolved out of a series of field programs beginning in the mid-1990s.
Shallow-water benthic communities throughout coastal Antarctica share many species and are governed by similar physico-oceanographic processes.
La Trobe University has recently installed a new all-sky imaging Fabry-Perot spectrometer at Mawson Station, Antarctica. It is capable of recording independent spectra from many tens of locations across the sky simultaneously…
A simplified three dimensional, time-dependant model of a local region of Earth's thermosphere is being developed to investigate dynamical processes occurring over spatial scales of less than 100 km. Because hydrostatic equilibrium is not enforced in the model…
A new Scanning Doppler Imager (SDI) has been constructed and recently located to Mawson, Antarctica. The SDI is a separation scanning Fabry-Perot Interferometer (FPI) coupled to an all-sky lens and imaging detector. This permits rapid scanning of the interference fringes over most of the sky.
Large-etalon Fabry-Perot Spectrometers (FPS) measure upper atmosphere winds and temperatures by observing spectral profiles of atmospheric emission lines with sufficient resolution to determine the Doppler broadening, from which temperature is deduced…
Trace elements often limit phytoplankton growth in the ocean, and the quantification of particulate forms is essential to fully understand their biogeochemical cycling. There is presently a lack of reliable measurements on the trace elemental content of marine particles…
We report the first observations of E-region neutral wind fields and their … interaction with auroral arcs at meso-scale spatial resolution during … geomagnetically quiet conditions at Mawson, Antarctica. This was achieved by … using a scanning Doppler imager…
The mid- to high-latitudes of the Southern Hemisphere are dominated by the westerly winds. These are important because changes in their strength determine precipitation and temperature regimes. However, little is known about their past strength, or spatial and temporal variability.