Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Validation of the AUSGeoid98 model in Western Australia using historic astrogeodetically observed deviations of the vertical

    135163_18255_JRSWA-ms386revised.pdf (316.3Kb)
    Access Status
    Open access
    Authors
    Featherstone, Will
    Morgan, L.
    Date
    2007
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Featherstone, Will and Morgan, L. 2007. Validation of the AUSGeoid98 model in Western Australia using historic astrogeodetically observed deviations of the vertical. Journal of the Royal Society of Western Australia 90 (3): pp. 143-149.
    Source Title
    Journal of the Royal Society of Western Australia
    ISSN
    0035-922X
    Faculty
    Department of Spatial Sciences
    Faculty of Science and Engineering
    WA School of Mines
    URI
    http://hdl.handle.net/20.500.11937/18984
    Collection
    • Curtin Research Publications
    Abstract

    AUSGeoid98 is the national standard quasigeoid model of Australia, which is accompanied by a grid of vertical deviations (angular differences between the Earth's gravity vector and the surface-normal to the reference ellipsoid). Conventionally, co-located Global Positioning System (GPS) and spirit-levelling data have been used to assess the precision of quasigeoid models. Here, we instead use a totally independent set of 435 vertical deviations, observed at astrogeodetic stations across Western Australia before 1966, to assess the AUSGeoid98 gravimetrically modelled vertical deviations. This point-wise comparison shows that (after three-sigma rejection of 15 outliers) AUSGeoid98 can deliver vertical deviations with a precision (standard deviation) of around one arc-second, which is generally adequate for the reduction of current terrestrial-geodetic survey data in this State.

    Related items

    Showing items related by title, author, creator and subject.

    • AUSGeoid09: a more direct and more accurate model for converting ellipsoidal heights to AHD heights
      Brown, N.; Featherstone, Will; Hu, G.; Johnston, G. (2011)
      In an absolute sense, AUSGeoid09 is an order of magnitude more accurate than AUSGeoid98 at converting ellipsoidal heights to Australian Height Datum (AHD) heights and vice versa. Results of this study show AUSGeoid09 can ...
    • The AUSGeoid09 model of the Australian Height Datum
      Featherstone, Will; Kirby, Jonathan; Hirt, Christian; Filmer, Michael; Claessens, Sten; Brown, N.; Hu, Guorong; Johnston, G. (2011)
      AUSGeoid09 is the new Australia-wide gravimetric quasigeoid model that has been a posteriori fitted to the Australian Height Datum (AHD) so as to provide a product that is practically useful for the more direct determination ...
    • Is Australian data really validating EGM2008, or is EGM2008 just in/validating Australia data?
      Claessens, Sten; Featherstone, Will; Anjasmara, Ira; Filmer, Michael (2009)
      The tide-free release of the EGM2008 combined global geopotential model and its tide-free pre-release PGM2007A are compared with Australian land, marine and airborne gravity observations, co-located GPS-levelling on the ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.