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    New views of the spherical Bouguer gravity anomaly

    20269_134997.pdf (344.3Kb)
    Access Status
    Open access
    Authors
    Vanicek, P.
    Tenzer, R.
    Sjoberg, L.
    Martinec, Z.
    Featherstone, Will
    Date
    2004
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Vanicek, P. and Tenzer, R. and Sjoberg, L.E. and Martinec, Z. and Featherstone, W.E. 2004. New views of the spherical Bouguer gravity anomaly. Geophysical Journal International. 159 (2): 460-472.
    Source Title
    Geophysical Journal International
    DOI
    10.1111/j.1365-246X.2004.02435.x
    Faculty
    Division of Resources and Environment
    Department of Spatial Sciences
    School
    Western Australian Centre for Geodesy
    Remarks

    This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Geophysical Journal International following peer review. The definitive publisher-authenticated version, Vanicek, P. and Tenzer, R. and Sjoberg, L.E. and Martinec, Z. and Featherstone, W.E. 2004. New views of the spherical Bouguer gravity anomaly. Geophysical Journal International. 159 (2): 460-472. is available online at: http://gji.oxfordjournals.org/content/159/2/460

    URI
    http://hdl.handle.net/20.500.11937/21625
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents a number of new concepts concerning the gravity anomaly. First, it identifies a distinct difference between a surface (2-D) gravity anomaly (the difference between actual gravity on one surface and normal gravity on another surface) and a solid (3-D) gravity anomaly defined in the fundamental gravimetric equation. Second, it introduces the 'no topography' gravity anomaly (which turns out to be the complete spherical Bouguer anomaly) as a means to generate a quantity that is smooth, thus suitable for gridding, and harmonic, thus suitable for downward continuation. It is understood that the possibility of downward continuing a smooth gravity anomaly would simplify the task of computing an accurate geoid. It is also shown that the planar Bouguer anomaly is not harmonic, and thus cannot be downward continued.

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