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

Thomson Complete Spherical Cap Bouguer geodetic 1vd

Created 16/10/2025

Updated 16/10/2025

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

Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Thomson Complete Spherical Cap Bouguer geodetic 1vd is the first vertical derivative of the complete spherical cap Bouguer anomaly grid for the Thomson Orogen Gravity Survey (P201041). This gravity survey was acquired under the project No. 201041 for the geological survey of QLD. The grid has a cell size of 0.007 degrees (approximately 734m). A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid. A total of 7620 gravity stations at 4000m spacing were acquired to produce this grid.

Files and APIs

Tags

Additional Info

Field Value
Title Thomson Complete Spherical Cap Bouguer geodetic 1vd
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/b6ad1b1a-2a89-44ce-8564-17d427bba9b4
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 01/04/2011 - 30/06/2011
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        144.1989,
        -29.084
      ],
      [
        148.2379,
        -29.084
      ],
      [
        148.2379,
        -25.465
      ],
      [
        144.1989,
        -25.465
      ],
      [
        144.1989,
        -29.084
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Thomson Complete Spherical Cap Bouguer geodetic 1vd". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/thomson-complete-spherical-cap-bouguer-geodetic-1vd