Note: Geoscience Australia no longer supports users' external hard drives. The data can either be downloaded from the ELVIS Portal or from the Related links. The 1 second Shuttle Radar Topography Mission (SRTM) Digital Elevation Models Version 1.0 package comprises three surface models: the Digital Elevation Model (DEM), the Smoothed Digital Elevation Model (DEM-S) and the Hydrologically Enforced Digital Elevation Model (DEM-H).
Digital Elevation Model data record the terrain height variations from the processed point-located data recorded on an airborne geophysical survey. The aircraft altimeter data records the height of the aircraft above the ground and the aircraft GPS rec`ords the height of the aircraft above the ellipsoid. Subtracting the two values enables the height of the terrain beneath the aircraft relative to the ellipsoid to be calculated.
The GEODATA 9 Second Digital Elevation Model (DEM-9S) Version 3 is a grid of ground level elevation points covering the whole of Australia with a grid spacing of 9 seconds in longitude and latitude (approximately 250 metres) in the GDA94 coordinate system. Version 3 of the DEM-9S was calculated by Version 5.2.2 of the ANUDEM procedure (Hutchinson 2007) from comprehensively revised and augmented national GEODATA-250K topographic source data (AUSLIG 1992, Geoscience Australia 2003, Geoscience Australia 2006) using Version 5.2.2 of the ANUDEM elevation gridding procedure.
Nationally consistent set of groundwater boundaries and properties including aquifer boundaries, geometry, salinity, yield and hydraulic conductivity. The Interim Aquifer Framework has been used to standardise the hydrogeological unit terminology for this
Nationally consistent set of groundwater bores (including monitoring, irrigation and commercial bores) and associated lithology, construction and hydrostratigraphy logs. The National Aquifer Framework has been used to standardise the hydrogeological unit
We are currently working with this datasets custodian to consume their metadata to populate these fields.
Australia (AUS) within the Australian Statistical Geography Standard (ASGS), represents the geographic extent of Australia. This is set out in section 2B of the Acts Interpretation Act 1901, which currently defines Australia or the Commonwealth as meaning:
'...the Commonwealth of Australia and, when used in a geographical sense, includes Norfolk Island, the Territory of Christmas Island and the Territory of Cocos (Keeling) Islands, but does not include any other external Territory'.
"These data sets have a spatial resolution of no closer than 80 m and are collected on a close to weekly basis.
The AVHRR and MODIS sensors service most Australian needs for low resolution optical data. Data is derived from MODIS, AVHRR, VIIRS missions a
"These data sets have a spatial resolution of no closer than 80 m and are collected on a close to weekly basis.
The AVHRR and MODIS sensors service most Australian needs for low resolution optical data. Data is derived from MODIS, AVHRR, VIIRS missions a
"These data sets have a spatial resolution of no closer than 80 m and are collected on a close to weekly basis.
The AVHRR and MODIS sensors service most Australian needs for low resolution optical data. Data is derived from MODIS, AVHRR, VIIRS missions a
