This service has been created specifically for display in the National Map and the chosen symbology may not suit other mapping applications. The Australian Topographic web map service is seamless national dataset coverage for the whole of Australia. These data are best suited to graphical applications. These data may vary greatly in quality depending on the method of capture and digitising specifications in place at the time of capture. The web map service portrays detailed graphic representation of features that appear on the Earth's surface. These features include the administration boundaries from the Geoscience Australia 250K Topographic Data, including state forest and reserves.

Flyer to be carried by GA officers while undertaking a building survey of the Perth Central Business District.

PNG has a significant exposure to natural hazards, which is likely to increase as population growth continues. Managing this risk requires a broad technical capacity and strong networks within all DRR-related organisations. Between 2010 and 2016, The Department of Foreign Affairs and Trade (DFAT) and Geoscience Australia (GA) collaborated to achieve a range of outcomes focused on building the capabilities of Papua New Guinea (PNG) technical agencies to deliver natural hazard risk information. Initially this work centred on East New Britain province, but subsequently was expanded to a national scope. The work focused on three significant natural hazards in PNG: earthquake, volcanic eruption and tsunami, and also included significant work on landslides and cross-cutting data management related capabilities. During the lifetime of the Activity, collaborative relationships between the Government of PNG technical agencies and GA served to deliver a series of outputs that contribute to improve disaster resilience outcomes in PNG. The work achieved the following outcomes. - Technical agencies in PNG have developed partnerships and networks in PNG that facilitate the transfer of knowledge, data and skills. - Scientists in PNG technical agencies are able to better assess the risk and impact from natural hazards; - A selected province in PNG is better informed about its risk from natural hazards; - The relationship between GA and PNG technical agencies is enhanced so that technical agencies have increased capacity to access and use risk assessment knowledge and skills; and - Government of PNG, DFAT and GA are aware of options for strategic support to PNG agencies that further develop their natural hazard risk assessment capacity. Key outputs in this project include. - A range of training, workshops, consultation, and ongoing collaborative projects and mentoring that developed the PNG capability in earthquake-, tsunami-, volcano- and landslide hazard analysis, as well as spatial data management and processing. Many of these also built up networks between PNG agencies and their stakeholders. - Development of a multi-hazard assessment for East New Britain, a national seismic hazard map, and targeted landslide susceptibility methodology, as well as communication material on natural hazards to the general public. The report articulates recommendations based on lessons learnt during the lifetime of this Activity. These centre on ensuring strong relationships between PNG technical agencies and GA, as the crucial factor determining successful outcomes; managing expectations, accommodating limitations in capability and capacity, and minimising technical and logistical challenges in delivering a program. These recommendations should strengthen future programs leveraging the potential of technical support for DRR.

To provide an introduction to the PacSAFE Activity

The Southern Thomson Project was established to develop a better understanding of the geology and mineral potential of the southern Thomson Orogen. One way in which the Southern Thomson Project is improving this understanding is through the collection of seismic refraction data at 16 greenfields sites to assess the cover thickness (i.e. the amount of regolith and sedimentary basin cover overlying the basement geology). Seismic refraction data was collected using a standard linear array with 48 geophones and a 40 kg propelled weight drop as the energy source. An estimate of the cover thickness was produced from the refraction data using the time-term inversion method. This resulted in the creation of a three-layer model for each site, which accounts for the layers associated with the regolith, sedimentary basin cover and the basement geology.

Geoscience Australia conducts applied research within the Australian Antarctic Territory and adjacent marine jurisdictions. This research supports Geoscience Australia's strategic objectives and the Australian Antarctic Science Strategic Plan, as well as providing quality advice to Government. Our research underpins development of appropriate environmental management strategies for a range of marine and terrestrial environments. Our work supports the Australian Government's national interests in the Antarctic and commitment to the Antarctic Treaty System.

Legacy product - no abstract available

The origin of gases in Australia's Browse and Perth basins is deciphered using the molecular and isotopic compositions of individual C1-C5 hydrocarbons. As neo-pentane is strongly resistant to biodegradation and least influenced by thermal maturation (Boreham and Edwards, 2008), its carbon isotopic composition provides a powerful correlation tool for biodegraded and high maturity gases. Examples of how this tool has been applied to decipher the origin of gases in Australia's Browse and northern Perth basins are presented here.

Brief overview of the Houtman 2D survey (GA349) to accompany the dataset

Seabed samples were collected from 52 sites across the George V continental shelf and slope during voyage 3 on the Aurora Australis, December 2007 - January 2008. Most samples were collected with a box corer (BC), though more gravelly sediments required a Smith-McIntyre (GRSM) or Van-Veen grab (GRVV) as indicated by the station name. Sediments were photographed on deck immediately following collection. This dataset contains these photos, labelled according to the station number, sample type and sample number at that site. For locations and further information refer to Beaman, R.J., O'Brien, P.E., 2009. Collaborative East Antarctic Marine Census (CEAMARC): Post-Survey Report, RSV Aurora Australis Voyage 3, December 2007 - January 2008, Geoscience Australia, Record, 2009/05, 61 pp. (https://d28rz98at9flks.cloudfront.net/67381/Rec2009_005.pdf). Sediment data is available from the Marine Sediments Database (http://dbforms.ga.gov.au/pls/www/npm.mars.search). This dataset is published with the permission of the CEO, Geoscience Australia.