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3 second SRTM Derived Digital Elevation Model (DEM) Version 1.0

Created 17/10/2025

Updated 17/10/2025

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The 3 second (~90m) Shuttle Radar Topographic Mission (SRTM) Digital Elevation Model (DEM) version 1.0 was derived from resampling the 1 arc second (~30m) gridded DEM (ANZCW0703013355). The DEM represents ground surface topography, and excludes vegetation features. The dataset was derived from the 1 second Digital Surface Model (DSM; ANZCW0703013336) by automatically removing vegetation offsets identified using several vegetation maps and directly from the DSM. The 1 second product provides substantial improvements in the quality and consistency of the data relative to the original SRTM data, but is not free from artefacts. Man-made structures such as urban areas and power line towers have not been treated. The removal of vegetation effects has produced satisfactory results over most of the continent and areas with defects are identified in the quality assessment layers distributed with the data and described in the User Guide (Geoscience Australia and CSIRO Land & Water, 2010). A full description of the methods is in progress (Read et al., in prep; Gallant et al., in prep). The 3 second DEM was produced for use by government and the public under Creative Commons attribution.

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Additional Info

Field Value
Title 3 second SRTM Derived Digital Elevation Model (DEM) Version 1.0
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/ce34b891-fd2b-4dda-a701-ef5a57684591
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 11/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        113.0,
        -44.0
      ],
      [
        154.0,
        -44.0
      ],
      [
        154.0,
        -10.0
      ],
      [
        113.0,
        -10.0
      ],
      [
        113.0,
        -44.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "3 second SRTM Derived Digital Elevation Model (DEM) Version 1.0". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/3-second-srtm-derived-digital-elevation-model-dem-version-1-0