Encyclopedia of Solid Earth Geophysics

Living Edition
| Editors: Harsh K. Gupta

Gravity Data, Advanced Processing

  • Christopher J. SwainEmail author
  • Jonathan F. Kirby
Living reference work entry
DOI: https://doi.org/10.1007/978-3-030-10475-7_89-1
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Synonyms

Definition

Spectral analysis

Estimation and analysis of global frequency content of a signal, assumed stationary, most often using the Fast Fourier Transform (FFT).

Potential field transformations

Process of converting gravity (or magnetic) survey data into a new and physically meaningful form to facilitate its geological interpretation.

Euler and Werner deconvolution

Methods for automatically estimating depths to sources from gravity (or magnetic) survey data.

Wavelet analysis

Estimation and analysis of local frequency content of a non-stationary signal, using a wavelet transform (WT).

Introduction

The use of spectral analysis to interpret gravity anomalies goes back to the 1930s, but the modern approach in terms of the Fourier transform (FT) was developed in the 1960s and 1970s. Most of the methods are equally applicable to magnetic data, which is their more common area of use because of the huge volume of aeromagnetic...

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Authors and Affiliations

  1. 1.School of Earth and Planetary SciencesCurtin UniversityPerthAustralia