Digital Elevation Data
Australia’s future safety, prosperity and sustainability depends on making informed policy and investment decisions that meet the needs of today, and the decades ahead. Digital elevation data which describes Australia’s landforms and seabed is crucial for addressing issues relating to the impacts of climate change, disaster management, water security, environmental management, urban planning and infrastructure design. Geoscience Australia is working collaboratively across all levels of government, industry and academia to ensure decision makers, investors and communities have access to the best available elevation data to meet local, regional and national needs.
National Elevation Data Framework (NEDF)
Ensuring decision makers, investors and the community have access to the best available elevation data describing Australia’s landforms and sea bed to address the needs of today and the decades ahead.
An audit of high resolution elevation data capture in relation to densely populated areas.
The 2011 National Elevation Audit is a series of maps illustrating the areas where elevation data has been captured or will be completed until the end of 2012 and their relative vertical accuracy.
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This system provides magnetic, radiometric, gravity and digital elevation data from Australian National, State and Territory Government geophysical data archives.
The national 9 second (~250m) national DEM and flow direction grid describing the principal directions of surface drainage across the whole of Australia.
The 3 second (~90m) DEMs package contains three models derived from the 1 second products, DSM, DEM and DEM-S.
The national 1 second (~30m) DEMs suite contains three publicly released national models; Digital Elevation Model (DEM), Smoothed DEM (DEM-S) and Hydrologically Enforced DEM (DEM-H). These 1 second products are a significant improvement on the Shuttle Radar Topographic Mission (SRTM) digital surface model (DSM) from which they were derived.
The national 1 second (~30m) digital surface model (DSM) represents ground surface topography and other features including vegetation and man-made features such as buildings. Derived from NASA’s SRTM data, this DSM had been processed to remove artifacts and errors inherent to the data.
This data is restricted for GOVERNMENT USE ONLY.
Topic contact: firstname.lastname@example.org Last updated: June 19, 2013