This service represents a combination of two data products, the DEM_SRTM_1Second dataset and the Australian_Bathymetry_Topography dataset. This service was created to support the CO2SAP (Co2 Storage application) Project to create a transect elevation graph within the application. This data is not available as a dataset for download as a Geoscience Australia product. The DEM_SRTM_1Second service represents the National Digital Elevation Model (DEM) 1 Second product derived from the National DEM SRTM 1 Second. The DEM represents ground surface topography, with vegetation features removed using an automatic process supported by several vegetation maps. eCat record 72759. The Australian_Bathymetry_Topography service describes the bathymetry dataset of the Australian Exclusive Economic Zone and beyond. Bathymetry data was compiled by Geoscience Australia from multibeam and single beam data (derived from multiple sources), Australian Hydrographic Service (AHS) Laser Airborne Depth Sounding (LADS) data, Royal Australian Navy (RAN) fairsheets, the General Bathymetric Chart of the Oceans (GEBCO) bathymetric model, the 2 arc minute ETOPO (Smith and Sandwell, 1997) and 1 arc minute ETOPO satellite derived bathymetry (Amante and Eakins, 2008). Topographic data (onshore data) is based on the revised Australian 0.0025dd topography grid (Geoscience Australia, 2008), the 0.0025dd New Zealand topography grid (Geographx, 2008) and the 90m SRTM DEM (Jarvis et al, 2008). eCat record 67703. IMPORTANT INFORMATION For data within this service that lays out of the Australian boundary the following needs to be considered. This grid is not suitable for use as an aid to navigation, or to replace any products produced by the Australian Hydrographic Service. Geoscience Australia produces the 0.0025dd bathymetric grid of Australia specifically to provide regional and local broad scale context for scientific and industry projects, and public education. The 0.0025dd grid size is, in many regions of this grid, far in excess of the optimal grid size for some of the input data used. On parts of the continental shelf it may be possible to produce grids at higher resolution, especially where LADS or multibeam surveys exist. However these surveys typically only cover small areas and hence do not warrant the production of a regional scale grid at less than 0.0025dd. There are a number of bathymetric datasets that have not been included in this grid for various reasons.

This service includes world bathymetry, elevation (hillshade), and satellite imagery data, and ocean, country, population and natural features. The information was derived from various sources, including Natural Earth and Landsat Imagery. It is a cached service with a Web Mercator Projection. The service contains layer scale dependencies.

The large tsunami disasters of the last two decades have highlighted the need for a thorough understanding of the risk posed by relatively infrequent but disastrous tsunamis and the importance of a comprehensive and consistent methodology for quantifying the hazard. In the last few years, several methods for probabilistic tsunami hazard analysis have been developed and applied to different parts of the world. In an effort to coordinate and streamline these activities and make progress towards implementing the Sendai Framework of Disaster Risk Reduction (SFDRR) we have initiated a Global Tsunami Model (GTM) working group with the aim of i) enhancing our understanding of tsunami hazard and risk on a global scale and developing standards and guidelines for it, ii) providing a portfolio of validated tools for probabilistic tsunami hazard and risk assessment at a range of scales, and iii) developing a global tsunami hazard reference model. This GTM initiative has grown out of the tsunami component of the Global Assessment of Risk (GAR15), which has resulted in an initial global model of probabilistic tsunami hazard and risk. Started as an informal gathering of scientists interested in advancing tsunami hazard analysis, the GTM is currently in the process of being formalized through letters of interest from participating institutions. The initiative has now been endorsed by UNISDR and GFDRR. We will provide an update on the state of the project and the overall technical framework, and discuss the technical issues that are currently being addressed, including earthquake source recurrence models and the use of aleatory variability and epistemic uncertainty, and preliminary results for a global hazard assessment which is an update of that included in UNIDSDR GAR15.

Exploring for the Future (EFTF) is a four-year geoscience data and information collection programme that aims to better understand on a regional scale the potential mineral, energy and groundwater resources that are concealed under cover in northern Australia and parts of South Australia. This factsheet explains one of the activities being undertaken to collect this data and information.

Exploring for the Future (EFTF) is a four-year geoscience data and information collection programme that aims to better understand on a regional scale the potential mineral, energy and groundwater resources concealed under cover in northern Australia and parts of South Australia. This factsheet explains one of the activities being undertaken to collect this data and information.

60 second video announcing Digital Earth Australia - a world first analysis platform for satellite imagery and other Earth observations.

This flythrough illustrates the geomorphic features imaged during a multibeam sonar survey (GA-0348) of the coastal waters around Casey station and the adjacent Windmill Islands. The survey utilised GA’s Kongsberg EM3002D multibeam echosounder, motion reference unit and C-Nav differential GPS system mounted on the Australian Antarctic Division’s (AAD) science workboat the Howard Burton. The survey was a collaborative project between GA, the AAD and the Royal Australian Navy (RAN). During the survey a total of ~27.3 km2 of multibeam bathymetry, backscatter and water-column data were collected. The new high-resolution bathymetric grid (1 m resolution) reveals seafloor features in the Casey area in unprecedented detail.

The product consists of 8,595 line kilometres of time‐domain airborne electromagnetic (AEM) geophysical data acquired over part of the Musgrave Province in South Australia. This product release also includes electrical conductivity depth images derived from the dataset, and the survey operations and processing report. The data were acquired using the airborne High Moment TEMPEST® electromagnetic and magnetic system, which covered a survey area that includes the south western portion of the WOODROFFE 1:250K Map Sheet (Crombie, Carbeena and western half of the Eunyarinna 1:100K Map Sheets); the northwestern portion of the LINDSAY 1:250K Map Sheet (northern half of the Moombunya and Moolalpinna 1:100K map sheets and northwestern quarter of the Willinna 1:100K map sheet). The survey lines where oriented N-S and flown 2km line apart. The survey was funded by the Government of South Australia, as part of the Plan for Accelerating Exploration (PACE) Initiative, through the Department of State Development, (DSD). The survey was managed by Geoscience Australia as part of a national collaborative framework project agreement with SA. The principal objective of this project was to capture a baseline geoscientific dataset to provide further information on the geological context and groundwater resource potential, of the central part of the South Australian Musgrave Province. Geoscience Australia contracted CGG Aviation (Australia) Pty to acquire High Moment TEMPEST® electromagnetic and magnetic data, between August and September 2016. The data were processed and modelled by CGG using its in‐house processing conductivity depth transform techniques. The Musgrave Province in far north of South Australia is one of the last true exploration frontier areas in Australia, which extends into Northern Territory and Western Australia. The Musgrave Province is composed primarily of granulite facies quartzo-feldspathic metasedimentary and meta-igneous rocks, and includes a suite of layered mafic to ultramafic intrusions known as the Giles Complex. This geological setting has proven to be highly prospective for Ni-Cu-PGE mineral systems in the bordering states. A good example of this is the discovery of the Nebo and Babel nickel-copper-PGE sulphide deposits in 2000, followed by a subsequent number of other nickel (Ni), copper (Cu) and gold (Au) discoveries. In South Australia, major discoveries have eluded mineral explorers and exploration activity has fallen behind that of the Northern Territory and Western Australia. This divergence is largely due to issues around land access and a lack of contemporary precompetitive geoscientific information and data. The limited surface mapping combined with extensive regolith cover and incomplete geophysical, geochemical and geochronological data sets make it difficult for new explorers to fully appreciate the full economic potential of the Musgrave Province. The regional AEM survey data will be used to inform the distribution of cover sequences that obscure the basement geology and provide insight into the variation and characteristics of the overlaying sequences. The increased definition in the distribution of cover sequences and their variation and characteristics of the overlaying sequences will allow explorers to better assess exploration opportunities in the area. The new AEM data should also assist in the definition of the groundwater resource potential of the region and help characterise the pre-Pliocene palaeovalley systems known to exist in the region. The selection of the survey area was undertaken through a consultative process involving the CSIRO, Geological Survey of South Australia and the exploration companies currently active in the region (including industry survey partner PepinNini Minerals Ltd). The data will be available from Geoscience Australia’s web site free of charge. It will also be available through the South Australian Government’s SARIG website at https://map.sarig.sa.gov.au. The data will also feed into the precompetitive exploration workflow developed and executed by the GSSA and inform a new suite of value-added products directed at the exploration community.

The Browse Basin is located offshore on Australia's North West Shelf and is a proven hydrocarbon province hosting gas with associated condensate and where oil reserves are typically small. The assessment of a basin's oil potential traditionally focuses on the presence or absence of oil-prone source rocks. However, light oil can be found in basins where source rocks are gas-prone and the primary hydrocarbon type is gas-condensate. Oil rims form whenever such fluids migrate into reservoirs at pressures less than their dew point (saturation) pressure. By combining petroleum systems analysis with geochemical studies of source rocks and fluids (gases and liquids), four Mesozoic petroleum systems have been identified in the basin. This study applies petroleum systems analysis to understand the source of fluids and their phase behaviour in the Browse Basin. Source rock richness, thickness and quality are mapped from well control. Petroleum systems modelling that integrates source rock property maps, basin-specific kinetics, 1D burial history models and regional 3D surfaces, provides new insights into source rock maturity, generation and expelled fluid composition. The principal source rocks are Early-Middle Jurassic fluvio-deltaic coaly shales and shales within the J10-J20 supersequences (Plover Formation), Middle-Late Jurassic to Early Cretaceous sub-oxic marine shales within the J30-K10 supersequences (Vulcan and Montara formations) and K20-K30 supersequences (Echuca Shoals Formation). All of these source rocks contain significant contributions of land-plant derived organic matter and within the Caswell Sub-basin have reached sufficient maturities to have transformed most of the kerogen into hydrocarbons, with the majority of expulsion occurring from the Late Cretaceous until present.

This record presents a data compilation and thematic maps for existing U–Pb age data for a range of methods and minerals for an area of northern Australia. The compilation includes 2240 age results from the Northern Territory, Queensland and selected areas of South Australia, Western Australia and New South Wales. U–Pb age data was sourced from Geoscience Australia, the Northern Territory Geological Survey, the Geological Survey of Queensland, the Geological Survey of Western Australia and the published scientific literature. Thematic maps have been created from the compiled dataset and show the spatial distribution and age trends of igneous crystallisation ages, maximum depositional ages and metamorphic ages across northern Australia. This work can be used as both a standalone dataset and in conjunction with other geological, geochemical, isotopic and geophysical datasets to better understand the geological evolution of northern Australia.