In several Australian regions severe wind is projected to increase in severity as a result of climate change. This poses problems for existing buildings which are already structurally substandard under present climate and represent a high community risk. Increased severe wind gust likelihood will greatly exacerbate this as damage increases very sharply with increasing wind speed. Increasing wind hazard also presents challenges for regulators who set the design standards for future building construction. Key to adapting both legacy structures and to constructing future infrastructure compatible with future hazard is a reliable means for quantifying the benefits of adaption strategies. In this presentation work led by Geoscience Australia in collaboration with James Cook University and JDH Consulting is described. With funding contributions from the Federal Department of Climate Change a simulation tool is being developed and refined that quantitatively assesses damage to specific building systems as a result of severe wind exposure. The simulation tool accounts for variability in wind profile, shielding, structural strength, pressure coefficients, building orientation, building component weights, debris damage and water ingress via a Monte Carlo simulation approach. The software takes a component-based approach to modelling building vulnerability based on the premise that overall building damage is strongly related to the failure of key connections and members. If these failures can be ascertained, and associated damage from debris and water penetration reliably estimated, scenarios of complete building damage can be assessed and quantified in repair terms. Further, the building elements primarily responsible for failure can be identified and a range of adaptation measures simulated to quantitatively assess the benefits of structural and architectural changes now and into the future.

This map shows the boundary of the security regulated port for the purpose of the Maritime Transport & Office Security Act 2003. 2 sheets (Colour) January 2010 Not for sale or public distribution Contact Manager LOSAMBA project, PMD

Recent SHRIMP U-Pb results for the northern Connors area

Mapping technologies have allowed scientists to effectively and rapidly characterize the seabed in shallow and deep-water systems over large areas. This, in turn, allows management to make informed decisions regarding effective marine habitat conservation. To characterize the abiotic and biotic benthos within five estuaries in South-Western Australia, we conducted a towed-video survey following the protocol of Anderson et al., 2007 that rapidly characterizes the seabed in real time at 30 second intervals. A combination of towed-video transects, run perpendicular to the shoreline, and drop-camera stations, run throughout the basin of each estuary, were undertaken. The GPS locations and benthic characterizations taken along each transect and at each drop-camera station were recorded in real time using GNav (© Gerry Hatcher, 2002). Seabed characterizations recorded include; bottom type, bedform relief, submerged aquatic vegetation cover and length and the occurrence of macro-flora and fauna. Following the field survey, data were mapped in ArcGIS to identify benthic spatial distribution patterns of seabed features. A summary of the methodology used and results will be presented. The resulting video data are also being tested for repeatability between observers. The results found from this survey will help to reveal benthic substratum patterns in estuarine habitats and differences in habitat configurations between the estuaries. The methods used to map these estuaries can be used to map other estuaries in the future.

Crustal magnetism is caused by the magnetic properties commonly due to ferrimagnetic minerals, especially magnetite and/or titano-magnetite, distributed in rocks throughout the crust. One of the common visualisation tools of these properties is a total magnetic intensity (TMI) map or image, from which a number of tectonic and structural inferences regarding the cause of this distribution can be made. However, one often overlooked, and important attribute of magnetism, is the fact that magnetisation is strongly temperature dependent, and ferrimagnetic material lost its properties at the Curie temperature. Generally, temperature in the crust increases with depth. Therefore, with the known magnetic mineral assemblages of the crust and geothermal gradient it is theoretically possible to calculate the 'Curie depth', where the minerals with the ferrimagnetic property become paramagnetic. Alternatively, where the vertical distribution of magnetic minerals in the crust is homogeneous, the 'Curie depth' can be estimated from spectral analysis of magnetic data. It is the depth of bottom of the magnetic anomaly source that is inferred to be a proxy for the 'Curie depth'. We have generated a new 'Curie depth' map over the Olympic Dam supergiant iron-oxide-copper-gold-uranium mineral system in the Gawler Craton of South Australia. The area benefits from high quality airborne TMI data, as well as magnetotelluric and deep seismic reflection data, and numerous local heat-flow determinations.

This map shows the boundary of the security regulated port for the purpose of the Maritime Transport & Office Security Act 2003. 1 Sheet (Colour) May 2010 Not for sale or public distribution Contact Manager LOSAMBA project, PMD

The eastern Yilgarn Craton (EYC) of Western Australia is Australia's premier gold and nickel province, and has been the focus of geological investigations for over a century. Geoscience Australia, in conjunction with partners in the Predictive Mineral Discovery Cooperative Research Centre conducted a series of projects between 2001 and 2008 (Y4 project team, 2008). This article summarises the highlights and new findings from the research, many of which challenge previous paradigms on the tectonics and architecture, as well as the relationship of gold to structure, magmatism and metamorphism. Although a Yilgarn-based study, the results have general implications for other Archaean terranes.

This map shows the boundary of the Maritime Security Zones for each port for the purpose of the Maritime Transport & Office Security Act 2003. 1 Sheet (Colour) May 2010 Not for sale or public distribution Contact Manager LOSAMBA project, PMD

Seismic interval velocities derived from stacking velocities can provide some clues to determination of rock lithology. This concept has been applied to understand the divergent dipping reflector (DDR) and seaward dipping reflector (SDR) packages over the Wallaby Plateau and Wallaby Saddle that were imaged on the 2008/2009 seismic survey GA310 contracted by Geoscience Australia. Root mean square velocities (Vrms) used to calculate interval velocities (Vint) were derived from long cable data. Vrms were picked on traces after pre-stack time migration, and the 4th order normal move-out (NMO) correction was implemented. Therefore, distortions to interval velocities due to insufficient curvature of NMO curve at short offsets, structural dip and ray bending due to stratification are assumed to be largely suppressed. Consequently Vrms velocities are assumed to approximate average velocities.

This dataset attempts to reflect the boundaries of claimant applications for Native Title as per the Register of Native Title Claims (s185, Native Title Act; Commonwealth). This is a national dataset but data is stored by jurisdiction (State), for ease of use. Applications stored for each jurisdiction dataset include applications which overlap into adjoining jurisdictions as well as applications which overlap with these. This dataset depicts the spatial record of registered claimant applications. Aspatial attribution includes National Native Title Tribunal number, Federal Court number, application status and the names of both the NNTT Case Manager and Lead Member assigned to the application. Applicants of registered applications have the Right To Negotiate (RTN) with respect to certain types of Future Acts over the area being claimed. Whilst applications that are determined are recorded on a separate register, all registered applications remain on the Register of Native Title Claims until otherwise finalised. Geospatial data portraying native title information produced by the National Native Title Tribunal may not be on-sold. Value added products using this data must acknowledge the National Native Title Tribunal as the data source and include the NNTT disclaimer.