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    Do We Need a Gravimetric Geoid or a Model of the Australian Height Datum to Transform GPS Heights in Australia?

    146553_146553.pdf (100.9Kb)
    Access Status
    Open access
    Authors
    Featherstone, Will
    Date
    1998
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Featherstone, Will. 1998. Do we need a Gravimetric Geoid or a Model of the Australian Height Datum to Transform GPS Heights in Australia? The Australian Surveyor. 43 (4): pp. 273-280.
    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/20.500.11937/7339
    Collection
    • Curtin Research Publications
    Abstract

    A proposal is made to use a model of the Australian Height Datum (AHD) instead of the classical geoid to provide a more direct transformation of Global Positioning System (GPS) ellipsoidal heights to the AHD. This approach avoids post-survey adjustment of the GPS-AUSGEOID-derived heights in order to align them with existing AHD control. Alternatively, of course, the AHD could be redefined and readjusted such that it is more coincident with the classical geoid, thus allowing the use of a pure gravimetric geoid model in the height transformation. However, the cost and inconvenience associated with implementing a new national vertical datum in the near future render the proposed approach a more practical option in the interim.

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