Search

Publications matching your search query

Results 401 to 425 of 893

Sensitivity of the present-day climate to freshwater forcing associated with Antarctic sea ice loss Journal of Climate, 2008 (Ref: 13750)
Category 1: Peer-reviewed literature

The role played by Southern Hemisphere sea ice in the global climate system is explored using an earth … system climate model of intermediate complexity.

New high-resolution records of dustiness over recent centuries from Greenland and Antarctic ice cores Geochimica et Cosmochimica Acta, 2008 (Ref: 13698)
Category 3: Abstract

Archived in glaciers and ice sheets are long term records … of dustiness. Dust impacts Earth’s radiative forcing directly by … modifying the radiation budget and affecting cloud nucleation … and optical properties, and indirectly through ocean … fertilization which alters carbon sequestration.

E-region decameter-scale plasma waves observed by the dual TIGER HF radars Proceedings of the SuperDARN 2008 Workshop, Newcastle, Australia, 1 - 6 June 2008, 2008 (Ref: 13781)
Category 3: Conference paper

The dual Tasman International Geospace Environment Radar (TIGER) HF radars regularly … observe E-region echoes at sub-auroral magnetic latitudes 58°-60°S including during … geomagnetic storms.

SuperDARN observations of high-velocity E-region echoes from the eastward auroral electrojet Proceedings of the SuperDARN 2008 Workshop, Newcastle, Australia, 1 - 6 June 2008, 2008 (Ref: 13780)
Authors:
Category 3: Conference paper

A statistical analysis of short-range E-region echoes observed by the SuperDARN HF radars in … the evening sector (16-22 MLT) over 3 years near the solar cycle peak is presented. Significant … populations of the high-velocity (350-450 m/s)…

E-region irregularities observed by the TIGER HF radars during geomagnetic storms Eos Trans. AGU, Western Pacific Geophysics Meeting Supplement, 2008 (Ref: 13777)
Category 3: Conference paper

AB: We investigate the storm-time E-region backscatter observed by the … Tasman International Geospace Environment Radar (TIGER) HF radars. In … the afternoon sector during the negative geomagnetic storm phase…

Thermospheric winds and temperatures above Mawson, Antarctica, observed with an all-sky imaging, Fabry-Perot spectrometer Eos Trans. AGU, Western Pacific Geophysics Meeting Supplement, 2008 (Ref: 13776)
Category 3: Conference paper

A new all-sky imaging Fabry-Perot spectrometer has been installed at … Mawson station (67°36' S, 62°52' 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…

Radio, satellite and optical multipoint observations of the magnetosphere-ionosphere system (Invited) Eos Trans. AGU, Western Pacific Geophysics Meeting Supplement, 2008 (Ref: 13775)
Authors:
Category 3: Conference paper

: SuperDARN (SuperDual Auroral Radar Network) provides multi-point … observations of ionospheric flows over both southern and northern … hemisphere auroral regions and similarly GPS TEC and tomography … observations provide images of structures in the ionosphere and … plasmasphere.

Local scale numerical modelling of high latitude thermospheric dynamics: neutral wind response Eos Trans. AGU, Western Pacific Geophysics Meeting Supplement, 2008 (Ref: 13774)
Category 3: Conference paper

A simplified three dimensional, time-dependant model of a small region … of Earth's thermosphere is being developed to investigate dynamical … processes over spatial scales of less than 100 km. Because hydrostatic … equilibrium is not enforced in the model…

Gattini: a multisite campaign for the measurement of sky brightness in Antarctica Proceedings of SPIE 7012, 7012261-10, 2008 (Ref: 13766)
Category 3: Conference paper

We present the Gattini project: a multisite campaign to measure the optical sky properties above the two high altitude … Antarctic astronomical sites of Dome C and Dome A. The Gattini-DomeC project, part of the IRAIT site testing … campaign and ongoing since January 2006…

On observations of meteor trail diffusion using VHF radar 2008 Workshop on Applications of Radio Science proceedings, Australian National Committee for Radio Science, ISBN-0-9580476-1-8, 2008 (Ref: 13727)
Category 3: Conference paper

The diffusion of meteor trails has recently been exploited to estimate temperatures in the 80-100 km region of … the atmosphere. More recent modeling work suggests that meteoric dust laid down by the trails themselves will … affect the diffusion of the trails.

Adaptive optics sky coverage for Dome C telescopes Publications of the Astronomical Society of the Pacific, 2008 (Ref: 13755)
Category 1: Peer-reviewed literature

The unique atmospheric characteristics found at Dome C on the Antarctic plateau offer significant … advantages for the operation of adaptive optics systems.

Blood fatty acids indicate inter- and intra-annual variation in the diet of Adélie penguins: Comparison with stomach content and stable isotope analysis Journal of Experimental Marine Biology and Ecology, 2008 (Ref: 13745)
Category 1: Peer-reviewed literature

Adélie penguin (Pygoscelis adeliae) diet is an important indicator of prevailing environmental conditions and … resource availability. In this study, dietary variation within and between years was studied with fatty acid … signature analysis (FASA), stomach content analysis (SCA)…

Analysis of Australian fur seal diet by pyrosequencing prey DNA in faeces Molecular Ecology, 2009 (Ref: 13726)
Category 1: Peer-reviewed literature

DNA-based techniques have proven useful for defining trophic links in a variety of … ecosystems and recently developed sequencing technologies provide new opportunities … for dietary studies. We investigated the diet of Australian fur seals (Arctocephalus pusillus … doriferus)…

Evaluating and using stable-isotope analysis to infer diet composition and foraging ecology of Adélie penguins Pygoscelis adeliae Marine Ecology Progress Series, 2008 (Ref: 13308)
Category 1: Peer-reviewed literature

We investigated whether diet composition determined from stable-isotope analysis … (SIA) was similar to that determined from stomach content analysis for Ad¨¦lie penguins Pygoscelis … adeliae.

Stability of Antarctic Bottom Water formation to freshwater fluxes and implications for global climate Journal of Climate, 2008 (Ref: 13446)
Category 1: Peer-reviewed literature

The stability of Antarctic Bottom Water (AABW) to freshwater (FW) perturbations is investigated in a … coupled climate model of intermediate complexity. It is found that AABW is stable to surface freshwater … fluxes greater in volume and rate to those that permanently “shut down”…

Pseudogenes and DNA-based diet analyses: a cautionary tale from a relatively well sampled predator-prey system Bulletin of Entomological Research, 2008 (Ref: 13350)
Category 1: Peer-reviewed literature

Mitochondrial ribosomal DNA is commonly used in DNA-based dietary … analyses. In such studies, these sequences are generally assumed to be the … only version present in DNA of the organism of interest. However…

Detectability of penguins in aerial surveys over the pack-ice off Antarctica Wildlife Research, 2008 (Ref: 13475)
Category 1: Peer-reviewed literature

Knowledge of penguin abundance at regional and circumpolar scales across the Southern Ocean is important … for the development of ecosystem models and to estimate prey consumption by penguins to assess potential competition … with fisheries’ operations.

A new ENSO proxy from the Law Dome ice core SCAR/IASC IPY Open Science Conference, St. Petersburg, Russia, July 8-11 2008. Abstract Volume, 2008 (Ref: 13646)
Category 3: Abstract

Ice cores provide a suite of proxy variables which respond to potentially complex and non-linear interactions between … many climatic and environmental variables. This complexity can obscure identification of links between ice core … measurements and classical climate variables.

Ice shelf disintegration by plate bending and hydro-fracture: Satellite observations and model results of the 2008 Wilkins ice shelf break-ups Earth and Planetary Science Letters, 2009 (Ref: 13659)
Category 1: Peer-reviewed literature

Satellite remote sensing observations of three break-up events in 2008 for the Wilkins Ice Shelf (28 February … to 6 March, 27 May to 31 May, and 28 June to mid-July) provide unprecedented detail of ice shelf calving … during rapid break-up.

Accumulation of DNA damage in Antarctic mosses: correlations with ultraviolet-B radiation, temperature and turf water content vary among species Global Change Biology, 2009 (Ref: 13636)
Category 1: Peer-reviewed literature

The susceptibility of three East Antarctic moss species to UV-B radiation was examined by measuring accumulation of cyclobutane pyrimidine dimers under natural sunlight during the austral summer season of 2002/03.

Anomalous lithosphere beneath the Proterozoic of western and central Australia: A record of continental collision and intraplate deformation? Precambrian Research, 2008 (Ref: 13637)
Category 1: Peer-reviewed literature

A newsurfacewave seismic tomography model of Australia is presented which provides a means of investigating … the lithospheric structure beneath the Proterozoic regions in the west, north and centre of the … continent with improved resolution and reliability.

on