GEOIDAL STUDIES IN AUSTRALIA

Author： Mather R. S.   Fryer J. G.  

Publisher： Maney Publishing

ISSN： 1752-2706

Source： Survey Review, Vol.20, Iss.156, 1970-04, pp. : 268-282

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Abstract

The co-geoid obtained by the use of free-air anomalies in Stokes' integral and entitled the free-air geoid is computed for Australia from a composite set of data. The near zones were represented by surface gravimetry while the distant regions were represented by a combined solution from satellite data and terrestrial gravity. The solution so obtained is compared with both an astrogeodetic geoid on the arbitrary Australian Geodetic Datum as well as astrogeodetic deflections of the vertical, and the nature of the comparisons is studied. Estimates are obtained for the corrections necessary to convert the Australian Geodetic Datum to a geocentred system.

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