The AusHydro database provides a seamless surface hydrography layer for Australia at a nominal scale of 1:250,000. It consists of lines, points and polygons representing natural and man-made features such as water courses, lakes, dams and other water bodies. The natural water course layer consists of a linear network with a consistent topology of links and nodes that provide directional flow paths through the network for hydrological analysis. This network was used to produce the National 9 second Digital Elevation Model (DEM) of Australia (http://www.ga.gov.au/nmd/products/digidat/dem_9s.jsp). Surface Hydrology Dataset is an amalgamation of two primary datasets. The first is the hydrographic component of the GEODATA TOPO 250K Series 3 product released by Geoscience Australia in 2006 . The Series 3 dataset contains the following hydrographic features: canal lines, locks, rapid lines, spillways, waterfall points, bores, canal areas, flats, lakes, pondage areas, rapid areas, reservoirs, springs, watercourse areas, waterholes, water points, marine hazard areas, marine hazard points and foreshore flats.It also provides information on naming, hierarchy and perenniality. The dataset also contains Cultural and Transport features that may intersect with hydrography features. These include: Railway Tunnels, Rail Crossings, Railway Bridges, Road Tunnels, Road Bridges, Road Crossings, Water Pipelines. Refer to the GEODATA TOPO 250K Series 3 User Guide http://www.ga.gov.au/image_cache/GA8349.pdf for additonal information The second primary dataset is based on the GEODATA TOPO-250K Series 1 water course lines completed by Geoscience Australia in 1994, which has been supplemented by additional line work captured by the Australian National University during the production of the 9 second DEM to improve the representation of surface water flow. This natural watercourse dataset consists of directional flow paths and provides a direct link to the flow paths derived from the DEM. There are approximately 700,000 more line segments in this version of the data. AusHydro 1.0 uses the natural watercourse geometry from the ANU-enhanced Series 1 data, and the attributes (names, perenniality and hierarchy) associated with Series 3 to produce a fully attributed data set with topologically correct flow paths. The attributes from Series 3 were attached using spatial queries to identify common features between the 2 datasets. Additional semi-automated and manual editing was then undertaken to ensure consistent attribution along the entire network. WatercourseLines includes a unique identifier for each line segment (AusHydro-ID) which will be used to maintain the dataset, and to incorporate higher resolution datasets in the future. The AusHydro-ID will be linked to the ANUDEM-Derived (raster) streams through a common segment identifier, and ultimately to a set of National Catchments and Reporting Units (NCRU). Purpose Surface Hydrology Dataset is the reconciliation of the hydrological features in the two data sets to produce a single authoritative national stream network and water body data set suitable for hydrological analysis at national scales. It uses the natural watercourse geometry from the ANU-enhanced Series 1 data, and the attributes (names, perenniality and hierarchy) associated with Series 3 to produce a fully attributed data set with topologically correct flow paths.

The two versions of the printed Topographic Map Index are: <ul> <li>the 1:100 000 / 1:250 000 Topographic Map Index </li> <li>the 1:50 000 Topographic Map Index </li> </ul> Topographic map indexes are also available as digital data. Maps are listed by name on the back of the index. The 1:50 000 Index also lists availability of Orthophoto Map (OPM) and Topographic Line Map (TLM) for available 1:50 000 maps. Both indexes are available in printed form FREE from your nearest topographic map retailer or from the Geoscience Australia Sales Centre. You can also download PDFs of each index. <strong>Note:</strong> To print these PDFs at 100% requires an A0 printer. They are best for viewing on-screen. For new maps which may have been released after these indexes were published, please refer to the new releases page or use the Product Search tool. Product Specifications Coverage: Australia Currency: 2010 (PDF); 2010 (data) Coordinates: Geographical Datum: GDA94 Format: PDF ; Paper copy Medium: 2004 GIS Data Free online, free folded / download index. Forward Program: Updated annually

To provide the solar power industry with a data resource to allow them to assess the economic potential of a site for a solar power plant. Specifically under the Solar Flagship program.

The Compact Reference Map is the ideal product for discovering more about Australia from one convenient source. It includes a colourful array of information about Australia`s people, flag, language, national anthem, birds and animals, parliamentary system and more. All information is in Korean.

The Compact Reference Map is the ideal product for discovering more about Australia from one convenient source. It includes a colourful array of information about Australia`s people, flag, language, national anthem, birds and animals, parliamentary system and more. All information is in Portuguse.

The Compact Reference Map is the ideal product for discovering more about Australia from one convenient source. It includes a colourful array of information about Australia`s people, flag, language, national anthem, birds and animals, parliamentary system and more. All information is in Malay.

The Compact Reference Map is the ideal product for discovering more about Australia from one convenient source. It includes a colourful array of information about Australia`s people, flag, language, national anthem, birds and animals, parliamentary system and more. All information is in Japanese.

The Compact Reference Map is the ideal product for discovering more about Australia from one convenient source. It includes a colourful array of information about Australia`s people, flag, language, national anthem, birds and animals, parliamentary system and more. All information is in German.

The Compact Reference Map is the ideal product for discovering more about Australia from one convenient source. It includes a colourful array of information about Australia`s people, flag, language, national anthem, birds and animals, parliamentary system and more. All information is in Traditional Chinese.

The Compact Reference Map is the ideal product for discovering more about Australia from one convenient source. It includes a colourful array of information about Australia`s people, flag, language, national anthem, birds and animals, parliamentary system and more. All information is in Simplified Chinese.