This service represents the National DEM 1 Second Percentage Slope product

This service represents a hill shade (ground surface topography) and excludes vegetation features which has been dervied from the National DEM SRTM 1 Second. The sun angle used is 45 degrees azimuth and 45 degrees altitude. It is intended for large scale use for low lying area feature identification. The processing method is decsribe in the 1 Second SRTM Derived Product User Guide (Geoscience Australia, 2011)

This Service represents the National Flow Direction Grid of Australia. Based on a grid spacing of 9 seconds in longitude and latitude (approximately 250 metres) in the GDA94 coordinate system derived from the DEM SRTM 9 Second product

This service represents a hill shade (ground surface topography) and excludes vegetation features which has been dervided from the National DEM SRTM 1 Second. The sun angle used is 45 degrees azimuth and 30 degrees altitude. It is intended for large scale use for low lying area feature identification. The processing method is decsribe in the 1 Second SRTM Derived Product User Guide (Geoscience Australia, 2011)

This Dataset represents a National 25 metre DEM which has been derived from SRTM and LiDAR and merged together and will be continually updated.

This service represents the National DEM 1 Second Smoothed product

This service represents a hill shade (ground surface topography) and excludes vegetation features which has been dervied from the National DEM SRTM 1 Second. The sun angle used is 315 degrees azimuth and 30 degrees altitude. It is intended for large scale use for low lying area feature identification. The processing method is decsribe in the 1 Second SRTM Derived Product User Guide (Geoscience Australia, 2011)

This Service represents the 5 metre Digital Elevation Model (DEM), with national coverage. It is derived from merged LiDAR and various projects. New data will be added to the service as it becomes available.

This dataset represents Tasmania 5 metre Digital Elevation Model (DEM) which has been derived from LiDAR and merged together from various projects and will be continually updated.

<b>This service with existing dataset is migrated to a new server and the existing links will expire by the end of this year (31-Dec-2024). The replacement service is located at https://services.ga.gov.au/gis/rest/services/DEM_SRTM_1Second_2024/MapServer</b> This service represents the National Digital Elevation Model (DEM) 1 Second product derived from the National DEM SRTM 1 Second. The DEM represents ground surface topography, with vegetation features removed using an automatic process supported by several vegetation maps.