Open AccessInterpretation of One‐dimensional Magnetic Anomalies by Use of the Fourier‐transform
Author(s) -
Gudmundsson G.
Publication year - 1966
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1966.tb03104.x
Subject(s) - fourier transform , interpretation (philosophy) , magnetic anomaly , anomaly (physics) , noise (video) , fourier analysis , magnetic field , geophysics , geology , mathematics , mathematical analysis , physics , computer science , condensed matter physics , artificial intelligence , image (mathematics) , quantum mechanics , programming language
Summary It is proved that the modulus of the Fourier‐transform of the magnetic anomaly of a two‐dimensional magnetized body is determined by two parameters less than those determining the anomaly itself. This is true for any component of the field. A method is developed to calculate estimates of the Fourier‐transform from a limited amount of data and actual examples are given to demonstrate how this can be used in interpretation of magnetic anomalies. The method uses all the information there is in a record about the shape and depth of a magnetized body and concentrates it into a few values. It also provides a convenient way of investigating the amount and nature of the noise.