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    Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids

    Access Status
    Fulltext not available
    Authors
    Flury, J.
    Gerlach, C.
    Hirt, Christian
    Schirmer, U.
    Date
    2009
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Flury, Jakob and Gerlach, Christian and Hirt, Christian and Schirmer, Uwe. 2009. Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids, in H. Drewes (ed), Geodetic Reference Frames, Aug 1 2006, pp. 303-308. Munich: Springer.
    Source Title
    Proceed. Geodetic Reference Frames, Munich
    Source Conference
    Geodetic Reference Frames
    DOI
    10.1007/978-3-642-00860-3_47
    School
    Department of Spatial Sciences
    Remarks

    The original publication is available at : http://www.springerlink.com

    URI
    http://hdl.handle.net/20.500.11937/24970
    Collection
    • Curtin Research Publications
    Abstract

    For many modern regional geoid and quasigeoid models accuracies of one or a few centimeters are given. Validation of these models, however, is often difficult due to the lack of independent data. In a test area of the Bavarian Alps, Germany, with dense data coverage, we carry out validation experiments using GPS, levelling and astrogeodetic observations as well as state-of-the-art regional quasigeoid models. The data cover very rough terrain and mountain peaks. We find a good mutual agreement with a typical scatter of height residuals of 1 ? 2 cm. In some areas, however, systematic residual mean values of several centimeters are obtained which are possibly due to residual quasigeoid errors or due to a weak tie to the GPS reference frame.

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