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1 second SRTM Level 2 Derived Digital Elevation Model v1.0

Created 16/10/2025

Updated 16/10/2025

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The 1 second SRTM derived DEM Version 1.0 is a 1 arc second (~30m) gridded digital elevation model (DEM). 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. This 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, 2009). A full description of the methods is in progress (Read et al., in prep; Gallant et al., in prep). The grid spacing is 1 second in longitude and latitude (approximately 30 metres). Smoothed and drainage enforced versions are under development, and are expected to be released in 2010.

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Additional Info

Field Value
Title 1 second SRTM Level 2 Derived Digital Elevation Model v1.0
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/a5ddc4a5-e2d6-40ee-aec9-af231deddef4
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
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 "1 second SRTM Level 2 Derived Digital Elevation Model v1.0". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/1-second-srtm-level-2-derived-digital-elevation-model-v1-0