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  • This gravity anomaly image has been generated from the Bouguer Gravity Anomaly Grid of Australia 2016. The Bouguer grid has been image enhanced and displayed as a hue-saturation-intensity (HSI) image with sun shading from the northeast. The product has been derived from observations stored in the Australian National Gravity Database (ANGD) as at February 2016 together with the 2013 New South Wales Riverina gravity survey. Out of the almost 1.8 million records in the ANGD approximately 1.4 million stations were used to generate this image. The image shows spherical cap Bouguer anomalies over onshore continental Australia. The data used in this image has been acquired by the Commonwealth, State and Territory Governments, the mining and exploration industry, universities and research organisations from the 1940's to the present day. The spherical cap Bouguer anomalies in this image are the combination of Bullard A and B corrections to the Free Air anomaly values using a density of 2670 kg/m^3.

  • Gridded Bouguer gravity anomalies onshore and free-air anomalies offshore with satellite measurements filling the gaps in coverage. Grid mesh is 0.5 minute (approximately 800 metres). This second edition replaces the 1.5 minute gridded dataset released in 1997.

  • User-defined PDF maps of the Surface Geology of Australia (1:1 million scale) can be generated using the MapConnect online mapping application. The MapConnect tool allows users to zoom to an area of interest, overlay topographic information, and create PDF maps. The digital surface geology data may also be downloaded from the MapConnect application.

  • This dataset delineates political areas such as built up areas, land, ocean, pack ice and boundaries such as coastlines, city limits etc. (dataset derived from the Digital Chart of the World (DCW). Generic information on DCW data sets The primary source for DCW is the US Defense Mapping Agency (DMA) Operational Navigation Chart (ONC) series produced by the United States, Australia, Canada, and the United Kingdom. The ONCs have a scale of 1:1,000,000, where 1 inch equals approximately 16 miles.The charts were designed to meet the needs of pilots and air crews in medium and low altitude en route navigation and to support military operational planning, intelligence briefings, and other needs. Therefore, the selection of ground features is based on the requirement for rapid visual recognition of significant details seen from a low perspective angle. The DCW database was originally published in 1992. Data currency varies from place to place depending on the currency of the ONC charts. Chart currency ranges from the mid 1960s to the early 1990s. Compilation dates for every ONC chart are included in the database. For more information on the Digital Chart of the World please browse the DCW website where you can download these data in VPF format. GA has converted these VPF format files to common GIS formats Arcview and Mapinfo. Available datasets include drainage, roads and railway networks, political areas and boundaries and population centres. Available for free download.

  • Population centres such as major centres (associated with political Digital Chart of the World (DCW) dataset (polys) for built up areas), populated places and villages (dataset derived from the Digital Chart of the World). Generic information on DCW data sets The primary source for DCW is the US Defense Mapping Agency (DMA) Operational Navigation Chart (ONC) series produced by the United States, Australia, Canada, and the United Kingdom. The ONCs have a scale of 1:1,000,000, where 1 inch equals approximately 16 miles.The charts were designed to meet the needs of pilots and air crews in medium and low altitude en route navigation and to support military operational planning, intelligence briefings, and other needs. Therefore, the selection of ground features is based on the requirement for rapid visual recognition of significant details seen from a low perspective angle. The DCW database was originally published in 1992. Data currency varies from place to place depending on the currency of the ONC charts. Chart currency ranges from the mid 1960s to the early 1990s. Compilation dates for every ONC chart are included in the database. For more information on the Digital Chart of the world please browse the DCW website where you can download these data in VPF format. GA has converted these VPF format files to common GIS formats Arcview and Mapinfo. Available datasets include drainage, roads and railway networks, political areas and boundaries and population centres. Available for free download.

  • ArcGIS shapefile detailing GA's multibeam bathymetry holdings and coverage.

  • The Gazetteer provides information on the location and spelling of more than 332 000 geographical names across Australia as at January 2011. The supply of data is coordinated by the Intergovernmental Committee on Surveying and Mapping and derived from State, Territory and Australian Government agencies. Copyright of the Gazetteer data resides with the relevant state, territory and Australian Government agencies which are custodians of the data. The Gazetteer fields include: - Record ID - unique feature identifier for each feature. - Authority ID - custodian state or territory. - State ID - state or territory which contains the feature. - Name - name of the feature. - Feature Code - code indicating the type of feature - Status - indicates whether the name is authorised. - Variant name - variant or alternative name used for the feature. - Postcode - Postcode for the feature. - Concise Gazetteer - indicates whether the feature is included in the concise gazetteer. - Longitude - longitude of the feature in decimal degrees. - Latitude - latitude of the feature in decimal degrees. - 100K map number - 1:100 000 scale map number in which the feature is located. - CGDN - indicates whether the place name can be used in the state.au second level domains by community website portals which reflect community interests. Product specifications: - Coverage: Australia - Currency: 2010 - Coordinates: Geographical - Datum: GDA94 - Format: Fixed width ASCII and Microsoft Access Database - Medium: WEB - Forward Program: Annual revision Please note: The custodians of the place name data do not guarantee that the data is free from errors and omissions. If possible errors or omissions in the data are identified, please contact <a href=mailto:gazetteer@ga.gov.au>gazetteer@ga.gov.au</a>, corrections are forwarded to the State and Territories, Name Authorities for clarification. Updates will appear in subsequent revisions of the Gazetteer.

  • The basins dataset provides outlines and names of Australian sedimentary basins and sub-basins onshore and offshore, compiled as part of AGSO marketing activities aimed at encouraging further exploration of Australian oil and gas reserves. The basement relief image is based on a preliminary version of depth to basement map compiled as part of AGSO marketing activities aimed at encouraging further exploration of Australian oil and gas reserves. The image highlights distribution and shape of Australian onshore and offshore sedimentary basins. For most of the mapped area the image reflects depthto the basement (onshore basins, eastern and southern margins). In the absence of depth to the basement data, the deepest horizon or thehorizon reflecting rift-phase development of the basin has been mapped (North West shelf).

  • The product is a digital representation of the boundaries and names of Surface Water Management Areas defined by State and Territory water management agencies for use in national water resources reporting. Surface Water Management Areas generally correspond to Australia`s River Basin boundaries, however in some States and Territories the Areas are a sub-set or a major part of Australia`s River Basins. The dataset is produced by the National Land and Water Resources Audit (NLWRA) and distributed by Geoscience Australia. The data is suitable for GIS applications. Free online. Available in ArcInfo Export, ArcView Shapefile and MapInfo mid/mif. Product Specifications Coverage: Australia Currency: November 2000 Coordinates: Geographical Datum: GDA94 Format: ArcInfo Export, ArcView Shapefile and MapInfo mid/mif Medium: Free online and CD-ROM (fee applies)

  • This grid represents gravity anomalies of the Australian region. The grid combines accurate onshore gravity measurements, with satellite data over the offshore region. The cell values represent simple Bouguer anomalies at a density of 2.67 tonnes per cubic metre onshore and free-air anomalies offshore. The grid cell size is 0.5 minutes of arc, which is equivalent to about 800 metres.