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2019 B-Series De-trended Global Isostatic Residual Gravity Map of Australia

Created 16/10/2025

Updated 16/10/2025

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

The main part of this map is a Hue-Saturation-Intensity (HSI) image of De-trended Global Isostatic Residual Gravity data (DGIR) based on the B Series of the 2019 Australian National Gravity Grids. This series of grids represent the combination of 1.4 million ground gravity observations stored in the Australian National Gravity Database (ANGD) as of September 2019; 345,000 line km of Airborne Gravity and 106,000 line km of gravity gradiometry data in the National Australian Geophysical Database (NAGD), and the Global Gravity Grid developed at Scripps Institution of Oceanography, University of California at San Diego using data from the United States SIO, NOAA and NGA. The ground and airborne gravity data have been acquired by the Commonwealth, State and Territory Governments, the mining and exploration industry, universities and research organisations from the 1940’s to the present day. The shading of the image is from the northwest and the colour scale is linear from -500 µm.s-2 (blue) to +500 µm.s-2 (red).

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Additional Info

Field Value
Title 2019 B-Series De-trended Global Isostatic Residual Gravity Map of Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/3791ad5e-3195-429f-b37e-cfa3819501e7
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 15/10/2019 - 15/10/2020
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        108.0,
        -48.0
      ],
      [
        164.0,
        -48.0
      ],
      [
        164.0,
        -8.0
      ],
      [
        108.0,
        -8.0
      ],
      [
        108.0,
        -48.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "2019 B-Series De-trended Global Isostatic Residual Gravity Map of Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/2019-b-series-de-trended-global-isostatic-residual-gravity-map-of-australia