The Australian Topographic base map service is seamless national dataset coverage for the whole of Australia. The map is a representation of the Geoscience Australia 250k topographic specification and portrays a detailed graphic representation of features that appear on the Earth's surface. These features include cultural, hydrography and relief themes. The service contains layer scale dependencies.

Digital data is provided for the indexes of: - 1:100,000 scale topographic maps - 1:250,000 scale topographic maps - 1:1,000,000 scale General Reference maps These indexes are those used in the online map index dashboards and web maps. They contain value-add attributes, including map number, map name, map title, year published, the latitude and longitude of the extents of the maps sheets and data tiles covering Australia. They also include a link to download the map. Available in ESRI Shapefile and GDB.

Light detection and ranging (LiDAR) systems measure surface properties at high resolution, including ground surface elevation, and vegetation height and density. As well as having routine application in studies of surface hydrology, vegetation, ecology, infrastructure and hazard assessments, LiDAR is important in groundwater studies as it can help characterise and inform hydrogeological architecture, recharge and discharge processes, surface water–groundwater connectivity, and groundwater-dependent ecosystems. LiDAR-based high-resolution elevation data support surface and subsurface mapping, borehole data analysis, and the processing, calibration and interpretation of geophysics and remote sensing. Here, we describe several applications of airborne LiDAR to understanding groundwater systems in two case study areas in northern Australia: the East Kimberley area in the Northern Territory and Western Australia, and the Upper Burdekin area in Queensland. The East Kimberley LiDAR data were critical to mapping geomorphology and near-surface hydrostratigraphy, which informed our understanding of recharge processes. The Upper Burdekin LiDAR data enabled the mapping of key surface features such as lava flows and rootless cones, which can act as recharge pathways. <b>Citation:</b> Halas, L., Kilgour, P., Gow, L. and Haiblen, A., 2020. Application of high-resolution LiDAR data for hydrogeological investigations. In: Czarnota, K., Roach, I., Abbott, S., Haynes, M., Kositcin, N., Ray, A. and Slatter, E. (eds.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, 1–4.

This service contains the topographic map indexes of 1:1 Million, 1:250,000 and 1:100,000 scale maps available from Geoscience Australia. These indexes drive the online topographic map index dashboards and contain value-add attributes, including a link to download the map. There are two 1:250,000 layers in the index; one layer which represents the new 1:250,000 AUSTopo Australian Digital Map Series index and one layer which represents the existing 1:250,000 scale index. The datasets for the 1:1 Million, 1:100,000 and existing 1:250,000 scale maps can be found in the eCat record 145830. The dataset for the 1:250,000 AUSTopo Australian Digital Topographic Map Series can be found in the eCat record 148692.

The Australian Topographic base map service is seamless national dataset coverage for the whole of Australia. The map is a representation of the Geoscience Australia 250k topographic specification and portrays a detailed graphic representation of features that appear on the Earth's surface. These features include cultural, hydrography and relief themes. The service contains layer scale dependencies.

Wind multipliers are factors that transform wind speeds over open, flat terrain (regional wind speeds) to local wind speeds that consider the effects of direction, terrain (surface roughness), shielding (buildings and structures) and topography (hills and ridges). During the assessment of local wind hazards (spatial significance in the order 10's of metres), wind multipliers allow for regional wind speeds (order 10 to 100's of kilometres) to be factored to provide local wind speeds. <b>Value: </b>The wind multiplier data is used in modelling the impacts (i.e. physical damage) of wind-related events such as tropical cyclones (an input for Tropical Cyclone Risk assessment), thunderstorms and other windstorms. <b>Scope: </b>Includes terrain, shielding and topographic multipliers for national coverage. Each multiplier further contains 8 directions.

This service contains the topographic map indexes of 1:1 Million, 1:250,000 and 1:100,000 scale maps available from Geoscience Australia. These indexes drive the online topographic map index dashboards and contain value-add attributes, including a link to download the map. There are two 1:250,000 layers in the index; one layer which represents the new 1:250,000 AUSTopo Australian Digital Map Series index and one layer which represents the existing 1:250,000 scale index. The datasets for the 1:1 Million, 1:100,000 and existing 1:250,000 scale maps can be found in the eCat record 145830. The dataset for the 1:250,000 AUSTopo Australian Digital Topographic Map Series can be found in the eCat record 148692.

This service contains the topographic map indexes of 1:1 Million, 1:250,000 and 1:100,000 scale maps available from Geoscience Australia. These indexes drive the online topographic map index dashboards and contain value-add attributes, including a link to download the map. There are two 1:250,000 layers in the index; one layer which represents the new 1:250,000 AUSTopo Australian Digital Map Series index and one layer which represents the existing 1:250,000 scale index. The datasets for the 1:1 Million, 1:100,000 and existing 1:250,000 scale maps can be found in the eCat record 145830. The dataset for the 1:250,000 AUSTopo Australian Digital Topographic Map Series can be found in the eCat record 148692.

The map and underlying digital dataset provide national and regional-scale context for a wider variety of applications, including offshore industries, area-based environmental management, scientific research and public education. Australia’s Seabed Map is based on the revised AusBathyTopo 250m (Australia) 2023 grid (Beaman, 2023), the most comprehensive, continental-scale compilation of bathymetry data in the Australian region. The map extends across a vast area from 92°E to 172° E and 8°S to 60° S. This includes areas adjacent to the Australian continent and Tasmania, and surrounding Macquarie Island and the Australian Territories of Norfolk Island, Christmas Island, and Cocos (Keeling) Islands. Australia's marine jurisdiction offshore from the territory of Heard and McDonald Islands and the Australian Antarctic Territory are not included. The new map provides a complete three-dimensional picture of the seafloor and is a significant improvement since it was last revised in 2009. In particular, the map incorporates new innovations such as the use of earth observation data (satellite based) produced by Digital Earth Australia to improve coastline definition and present a seamless transition between land and sea. The data is compiled from 1582 individual surveys using multibeam echosounders, single-beam echosounders, LiDAR, or 3D seismic first returns, as well as higher-resolution regional compilations, and other source data including Electronic Navigation Charts and satellite derived bathymetry. The new map represents decades of data collection, analysis, investment and collaboration from Australia’s seabed mapping community. The 250 m resolution is only supported where direct bathymetric observations are sufficiently dense (e.g. where swath bathymetry data or digitised chart data exist). In many regions, this 250 m grid size is far in excess of the optimal grid size for some of the input data used. The AusBathyTopo250m grid and higher-resolution regional datasets are available on the AusSeabed Marine Data Portal as the AusBathyTopo Series. This map is not suitable for use as an aid to navigation, or to replace any products produced by the Australian Hydrographic Office. Medium: Digital PDF download.

Natural Earth is a public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software. Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com.