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    Fast-Fourier-based error propagation for the gravimetric terrain correction

    255227.pdf (2.472Mb)
    Access Status
    Open access
    Authors
    McCubbine, Jack
    Featherstone, Will
    Kirby, Jon
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    McCubbine, J. and Featherstone, W. and Kirby, J. 2017. Fast-Fourier-based error propagation for the gravimetric terrain correction. Geophysics. 82 (4): pp. G71-G76.
    Source Title
    Geophysics
    DOI
    10.1190/GEO2016-0627.1
    ISSN
    0016-8033
    School
    Department of Spatial Sciences
    Remarks

    Copyright © 2017 Society of Exploration Geophysicists. Use of this publication is subject to SEG terms of use and conditions at https://seg.org/Terms-of-Use

    URI
    http://hdl.handle.net/20.500.11937/55940
    Collection
    • Curtin Research Publications
    Abstract

    We have identified a gap in the literature on error propagation in the gravimetric terrain correction. Therefore, we have derived a mathematical framework to model the propagation of spatially correlated digital elevation model errors into gravimetric terrain corrections. As an example, we have determined how such an error model can be formulated for the planar terrain correction and then be evaluated efficiently using the 2D Fourier transform. We have computed 18.3 billion linear terrain corrections and corresponding error estimates for a 1 arc-second (~30 m) digital elevation model covering the whole of the Australian continent.

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