The sea-ice performance of the Australian climate models participating in the CMIP5 experiment, ACCESS1.0, ACCESS1.3 and CSIRO-Mk3.6, is assessed. Comparison with model output from five other international climate modelling centres and observational data are also included in the assessment process. The assessment takes into account modelled climatologies and interannual variability of the sea i...

increased concentration of greenhouse gases is expected to alter the radiative balance of atmosphere, causing increases in temperature and changes in precipitation patterns and other climatic variables. these changes are associated with the changes in hydrological systems globally and at the basin scale. these changes include: precipitation patterns and extremes; the amount and generation of ri...

Autonomous underwater vehicles (AUV) perform inspection missions and intervention in known and unknown environments, where it is necessary to ensure their safety. The AUV must have the ability to detect and avoid obstacles in the path of navigation. This article, an obstacle detection system for experimental Guanay II AUV is proposed, using a mechanical scanning SONAR Tritech Micron MK3. Since ...

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Geochemical, molecular, and physiological analyses of microbial isolates were combined to study the geomicrobiology of acidic iron oxide mats in Yellowstone National Park. Nineteen sampling locations from 11 geothermal springs were studied ranging in temperature from 53 to 88°C and pH 2.4 to 3.6. All iron oxide mats exhibited high diversity of crenarchaeal sequences from the Sulfolobales, Therm...

The CSIRO-led eXtended New Technology Demonstrator (xNTD) will test key SKA technologies whilst delivering exciting science outcomes in the fields of HI surveys, gaseous evolution, galactic magnetism, pulsars and transients. The xNTD and its sister telescope, the MIT-led Low Frequency Demonstrator (LFD), build on technologies developed by the Sydney University SKA Molonglo Prototype (SKAMP) and...

Duplicate neutralization tests were done on 401 avian and 101 human sera from island residents collected in the Coral Sea and on Australia's Great Barrier Reef against 19 known arboviruses. Antibodies to a potentially harmful flavivirus, Gadget's Gully virus, were equally present (4%) in both avian and human sera. Antibodies to another flavivirus, Murray Valley Encephalitis, and an ungrouped is...