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Absolute determinations of gravity in Australia and Papua New Guinea during 1979

Created 17/10/2025

Updated 17/10/2025

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A co-operative survey between the Soviet Academy of Sciences and the Australian Bureau of Mineral Resources during 1979 successfully measured the acceleration due to gravity using an absolute apparatus at Sydney, Hobart, Alice Springs, Darwin, and Perth in Australia, and at Port Moresby in Papua New Guinea. The measurements have a precision of about 6 micro Gal and an accuracy of about 15 microGal. Gravity ties to earlier stations allow comparisms with GAG-2 gravity meters, OVM pendulums and IGSN71 results. Gravity differences between cities are generally not significant at the 95 percent confidence level. Gravity differences at individual cities are also not significantly different from zero. The mean difference for all cities could be interpreted as having a component of secular variation of +3.3 ± 1.2 microGal/yr.

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Additional Info

Field Value
Title Absolute determinations of gravity in Australia and Papua New Guinea during 1979
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/0dce4209-ca7d-41f1-b91c-cafdd08d551d
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        110.0,
        -44.0
      ],
      [
        156.0,
        -44.0
      ],
      [
        156.0,
        0.0
      ],
      [
        110.0,
        0.0
      ],
      [
        110.0,
        -44.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Absolute determinations of gravity in Australia and Papua New Guinea during 1979". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/absolute-determinations-of-gravity-in-australia-and-papua-new-guinea-during-1979