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National Gravity Compilation 2019 Ausdrape elevation geoid image (hillshade HSI)

Created 16/10/2025

Updated 16/10/2025

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Digital Elevation data record the terrain height variations from the processed SRTM surface elevation 3 second grid data with a drape surface overlain. This National Gravity Compilation 2019 Ausdrape elevation geoid image (hillshade HSI) is elevation data for the 2019 Australian National Gravity Grids B series. These data are used in the project No. 202008. The grid used to produce this image has a cell size of 0.00417 degrees (approximately 435m). All data (i.e., ground, airborne and marine derived from satellite altimetry) were vertically continued to this surface during processing. The surface was generated to mimic a smooth airborne survey drape surface with a minimum surface clearance of 250 m and an isotropic maximum climb and descent rates of 25 m per km. The ground surface data were derived from SRTM data with 3 second grid cell size. The data are given in units of meters. The data are given in units of meters.

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Additional Info

Field Value
Title National Gravity Compilation 2019 Ausdrape elevation geoid image (hillshade HSI)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/4a9199c2-5a6c-4a29-898d-cb37403c79c2
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 19/06/2019 - 01/10/1947
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        107.9979,
        -48.0021
      ],
      [
        164.0021,
        -48.0021
      ],
      [
        164.0021,
        -7.9979
      ],
      [
        107.9979,
        -7.9979
      ],
      [
        107.9979,
        -48.0021
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "National Gravity Compilation 2019 Ausdrape elevation geoid image (hillshade HSI)". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/national-gravity-compilation-2019-ausdrape-elevation-geoid-image-hillshade-hsi