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NTGS North Wiso Gravity P201580 Spherical Cap Bouguer Anomaly 267GU 1VD

Created 16/10/2025

Updated 16/10/2025

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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. This NTGS North Wiso Gravity P201580 Spherical Cap Bouguer Anomaly 267GU 1VD is the first vertical derivative of the spheical cap Bouguer anomaly grid for the NTGS Northern Wiso Basin Gravity Survey (P201580). This gravity survey was acquired under the project No. 201580 for the geological survey of NT. The grid has a cell size of 0.00738 degrees (approximately 800m). A total of 4990 gravity stations at 4000m spacing were acquired to produce this grid. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

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Additional Info

Field Value
Title NTGS North Wiso Gravity P201580 Spherical Cap Bouguer Anomaly 267GU 1VD
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/a7cf8dd1-a722-453b-b557-eded65de091a
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 18/06/2015 - 09/08/2015
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        128.9507,
        -19.1119
      ],
      [
        134.2375,
        -19.1119
      ],
      [
        134.2375,
        -16.6826
      ],
      [
        128.9507,
        -16.6826
      ],
      [
        128.9507,
        -19.1119
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "NTGS North Wiso Gravity P201580 Spherical Cap Bouguer Anomaly 267GU 1VD". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/ntgs-north-wiso-gravity-p201580-spherical-cap-bouguer-anomaly-267gu-1vd