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    The Importance of Including the Geoid in Terrestrial Survey Data Reduction to the Geocentric Datum of Australia

    146543_24754_twonote.pdf (125.9Kb)
    Access Status
    Open access
    Authors
    Featherstone, Will
    Date
    1997
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Featherstone, Will. 1997. The Importance of Including the Geoid in Terrestrial Survey Data Reduction to the Geocentric Datum of Australia. The Australian Surveyor. 42 (1): pp. 45-50.
    Source Title
    The Australian Surveyor
    ISSN
    00050326
    Faculty
    Department of Spatial Sciences
    Faculty of Science and Engineering
    WA School of Mines
    Remarks

    Merged with: Cartographer to form: Journal of spatial science.

    URI
    http://hdl.handle.net/20.500.11937/37996
    Collection
    • Curtin Research Publications
    Abstract

    The complete reduction of terrestrial survey data to the Geodetic Reference System 1980 (GRS80) spheroid will become an important consideration after the implementation of the Geocentric Datum of Australia (GDA). Three examples are used to illustrate that when survey data reduction does not incorporate the effects of the Earth's gravity field, errors of approximately 11ppm, 200m and 3" can be introduced into terrain distances, astrogeodetically determined coordinates and azimuths respectively.

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