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This data package comprises the data used and developed for the Pacific Island Groundwater and Future Climates: First-Pass Regional Vulnerability Assessment project. The data contained included Original data sourced for the project, Final data produced by the project, MXD's of maps created, and scripts used within the project. Documentation from the project has been stored on TRIM at: Record Number P12/190.

As part of the Australian Tsunami Warning System Project (2005-09), the Attorney-General's Department funded Geoscience Australia to develop the national offshore Probabilistic Tsunami Hazard Assessment (PTHA). This assessment could then be used by Australian emergency managers in understanding the tsunami hazard to Australia. The national offshore PTHA considers the tsunami hazard posed to the entire Australian coast by tsunami caused by subduction zone earthquakes in the Indian and Pacific Oceans. These regions are known to have produced major tsunamigenic events External site link in recorded history and are the most likely sources of future events. The hazard maps are defined at a bathymetry water depth contour of 100m offshore. This normally falls outside of the Great Barrier Reef or other reef systems. The 100m depth contour is chosen because: Estimating the tsunami closer to the coast requires high resolution bathymetric data which does not always exist for the entire coast estimating the tsunami closer to the coast is a more computational and time intensive task. These maps help to identify the areas which are most likely to be at risk to damaging tsunami waves. However, they cannot be used directly to infer how far a tsunami will inundate onshore (inundation extent), how high above sea level they will reach on land (run-up), the extent of damage or any other onshore phenomena. To estimate the onshore tsunami impact, detailed bathymetry and topography of the specific region concerned is required for input to a detailed inundation model. The catalogue of tsunami events used to derive the national offshore PTHA can be used by emergency managers, researchers and individuals however to develop detailed inundation models at any onshore location.

A fully four-dimensional (3D x time) object-oriented biophysical dispersal model was developed to simulate the movement of marine larvae over semi-continuous surfaces. The model is capable of handling massive numbers of simulated larvae, can accommodate diverse life history patterns and distributions of characteristics, and saves point-level information to a relational database management system.

Airborne Electromagnetic data are being acquired by Geoscience Australia in areas considered to have potential for uranium or thorium mineralisation under the Australian Government's Onshore Energy Security Program (OESP). The surveys have been managed and interpreted by Geoscience Australia's Airborne Electromagnetic Acquisition and Interpretation project. In contrast to industry style deposit scale investigations, these surveys are designed to reveal new geological information at regional scale. The Frome Embayment AEM survey was acquired using the TEMPESTTM AEM system by Fugro Airborne Surveys under contract to GA. The survey covers a total of 32 300 line km and an area of 95 450 km2, the largest AEM survey by area ever flown in Australia. Phase-1 data, that is, contractor quality-controlled and quality-assessed data for the Frome survey, were released during March 2011. Phase-2 data, that is Geoscience Australia layered earth inversion (GA-LEI) data and derived products are included in this data release. The data and products described in this report are available from the GA AEM website, and are contained on the accompanying DVD.

This 2 CD package contains the January 2002 edition of the Australian bathymetry and topography grid at 0.01 deg (~1 km) cell size. Both binary and ASCII formats are included, suitable for most common image processing and GIS applications. The topography is from Geoscience Australia's (formerly AUSLIG's) 2nd edition digital elevation model for Australia. It is included for continuity with bathymetric features. The bathymetry is from digitised charts obtained from the Australian Hydrographic Service, swath bathymetry surveys, and other ship-track data of various vintages and navigational accuracy sourced from Geoscience Australia databases. The ship-track data have been levelled to reduce the artefacts due to misties at intersections.

Geoscience Australia undertook a marine survey of the Vlaming Sub-basin in March and April 2012 to provide seabed and shallow geological information to support an assessment of the CO2 storage potential of this sedimentary basin. The survey was undertaken under the Australian Government's National CO2 Infrastructure Plan (NCIP) to help identify sites suitable for the long term storage of CO2 within reasonable distances of major sources of CO2 emissions. The Vlaming Sub-basin is located offshore from Perth, Western Australia, and was previously identified by the Carbon Storage Taskforce (2009) as potentially suitable for CO2 storage. The principal aim of the Vlaming Sub-basin marine survey (GA survey number GA0334) was to look for evidence of fault reactivation and of any past or current gas or fluid seepage at the seabed. The survey also mapped seabed habitats and biota in the areas of interest to provide information on communities and biophysical features that may be associated with seepage. This data package brings together the following datasets which describe biophysical aspects of seafloor sediments: GEOCAT#74276. Underwater video footage from the Vlaming Sub-basin (GA0334). GEOCAT#76463. GA0334 Vlaming sub-basin Species identification of worms from grab. GEOCAT#78540. Vlaming Sub-Basin Marine Environmental Survey (GA-0334/S. Supporter GP 1373) (NCIP Program) - High Resolution Bathymetry grids. GEOCAT# 78550. Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Chlorin analyses of seabed sediments. GEOCAT#78551. Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Inorganic elements of seabed sediments. GEOCAT#78552. Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Bulk organic carbon and nitrogen isotopes and concentrations in seabed sediments. GEOCAT#78553. Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Sediment oxygen demand of seabed sediments. GEOCAT#78564. Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Chlorophyll a, b and c of seabed sediments. GEOCAT#78565. Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: %carbonate and specific surface area of seabed sediments. GEOCAT#79176. Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Grain size and carbonate concentrations of seabed sediments. GEOCAT#79345. Ecology / Infaunal morphospecies identifications from the Vlaming Sub-basin (GA0334). An account of the field operations is published in: GEOCAT 74626. Nicholas, W. A., Borissova, I., Radke, L., Tran, M., Bernardel, G., Jorgensen, D M., Siwabessy, J., Carroll, A. and Whiteway, T., 2012. Seabed Environments and Shallow Geology of the Vlaming Sub-Basin, Western Australia - Marine data for the Investigation of the Geological Storage of CO2. GA0334 Post-Survey Report. Geoscience Australia, Record 2013/09. A preliminary interpretation of seabed data is provided in: GEOCAT 78846. Nicholas, W. A., Howard, F., Carroll, A., Siwabessy, J., Tran, M., Picard, K., Przeslawski, R. and Radke, L. 2014. Seabed Environments and shallow sub-surface geology of the Vlaming Sub-basin, offshore Perth Basin: summary report on observed and potential seepage, and habitats. Geoscience Australia, Record 2014/XXX. Information on the broader study, evaluating the Vlaming Sub-basin CO2 storage potential and providing details of the suitable storage sites, is available in: GEOCAT 79332. Borissova, I, Lech, M.E., Jorgensen, D.C, Southby, C., Wang, L., Bernardel, G., Nicholas, T., Lescinsky, D.L. and Johnston, S. An integrated study of the CO2 storage potential in the offshore Vlaming Sub-basin. Geoscience Australia, Record 2014/XXX.

This release presents data collected as part of the collaborative Geoscience Australia-Geological Survey of Victoria Stavely Project. During 2014 fourteen pre-competitive stratigraphic drill holes were completed in the prospective Stavely region in western Victoria in order to better understand subsurface geology and its potential for a variety of mineral systems. The drill holes were completed between April and September 2014 in partnership with the Deep Exploration Technologies Cooperative Research Centre (DET CRC). Data contained within this release were collected in the field at the drill sites, either during or immediately following drilling. Data presented in this release include drill hole collar information, operational metadata and daily drilling reports, drill core photographs, down-hole surveys, down-hole wireline geophysical logging results, down-hole temperature logging results, down-hole AutoSonde(TM) gamma data, Lab-at-Rig (LAR®), X-ray fluorescence data, diamond drill core recovery percentages, and handheld magnetic susceptibility measurements on the drill core.

Dataset for the Northwest Shelf Release area contains biostratigraphic, reservoir facies, and organic geochemistry from wells in the release region.

Airborne Electromagnetic data are being acquired by Geoscience Australia in areas considered to have potential for uranium or thorium mineralisation under the Australian Government's Onshore Energy Security Program (OESP). The surveys have been managed and interpreted by Geoscience Australia's Airborne Electromagnetic Acquisition and Interpretation project. In contrast to industry style deposit scale investigations, these surveys are designed to reveal new geological information at regional scale. The Frome Embayment AEM survey was acquired using the TEMPEST^TM AEM system by Fugro Airborne Surveys under contract to Geoscience Australia. The survey covers a total of 32 300 line km and an area of 95 450 km², the largest AEM survey by area ever flown in Australia. Phase-1 data, that is, contractor quality-controlled and quality-assessed data for the Frome survey, were released during March 2011. Phase-2 data, that is Geoscience Australia layered earth inversion (GA-LEI) data and derived products to 400m were released in July 2011. This data package contains GA-LEI data and derived products to 200m. Data and products described in this report are available from the GA AEM website.