Fast Fourier-based error propagation for the gravimetric terrain correction

J. McCubbine, W. Featherstone, Keith J. Kirby

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3 Citations (Scopus)

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. © 2017 Society of Exploration Geophysicists.
Original languageEnglish
Pages (from-to)G71-G76
JournalGeophysics
Volume82
Issue number4
DOIs
Publication statusPublished - 2017
Externally publishedYes

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