From Geoscience Australia
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Geophysical Data Collection - elevation

Created 17/10/2025

Updated 17/10/2025

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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 records 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. This ellipsoidal terrain height is corrected for the variation between the ellipsoid and the geoid (the n-value correction) to produce terrain heights relative to sea level.

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Additional Info

Field Value
Title Geophysical Data Collection - elevation
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/f9e8a9d6-4cec-428a-9cb8-59df19294c59
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        90.0,
        -55.0
      ],
      [
        175.0,
        -55.0
      ],
      [
        175.0,
        -9.0
      ],
      [
        90.0,
        -9.0
      ],
      [
        90.0,
        -55.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Geophysical Data Collection - elevation". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/geophysical-data-collection-elevation