From Geoscience Australia
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Computer manipulation of a Digital Terrain Model (DTM) of Australia

Created 16/10/2025

Updated 16/10/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Images of the topography of Australia (DTM) have been created from a digital data file of about 320 000 topographic spot heights measured during the gravity survey of Australia, resampled on a regular grid , and manipulated with a Comtal image analysis system to enhance topographic features. Three manipulations: pseudo-colour transformations, bit-plane images, and synthetic reflectance images are illustrated and discussed to give an idea of the range of computer techniques that can be used to enhance continental topography for geologic or related study. Improvements are inevitable in this new technique, which is applicable to any regional data that can be digitised, such as magnetic, gravity, or radiometric data.

Files and APIs

Tags

Additional Info

Field Value
Title Computer manipulation of a Digital Terrain Model (DTM) of Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/537f8d76-9b40-4835-a64d-0e0a90312a50
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        110.0,
        -44.0
      ],
      [
        156.0,
        -44.0
      ],
      [
        156.0,
        -9.0
      ],
      [
        110.0,
        -9.0
      ],
      [
        110.0,
        -44.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Computer manipulation of a Digital Terrain Model (DTM) of Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/computer-manipulation-of-a-digital-terrain-model-dtm-of-australia