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Why is the ITRF92 used for GDA, instead of the WGS84??

April 26, 2017GDA Used wgs84

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Why is the ITRF92 used for GDA, instead of the WGS84??

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The International Terrestrial Reference Frame (ITRF) has been adopted in favour of WGS84 because it is more recent and is supported by the International Union of Geodesy and Geophysics (IUGG), whereas WGS84 was developed by the US Department of Defence years ago. This decision was affirmed in early 1994, when WGS84 was modified to align it more closely with ITRF.