Interpretation of the magnetic field from a sphere in the wavenumber domain |
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| Authors: | B Holm Jacobsen L Børsting Pedersen |
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| Institution: | (1) Laboratoriet for Geofysik, Geologisk Institut, Aarhus Universitet, Finlandsgade 6, 8200 Aarhus N, Denmark |
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| Abstract: | A Fourier transformation of the magnetic field from a magnetized sphere allows a particularly simple interpretation of the parameters of the sphere. The depth to the centre and total magnetic moments of the sphere are related to the intercept and slope of the power spectrum. The horizontal centre and direction of magnetization are related to slope and intercept of the phase spectra in two perpendicular, horizontal directions. Examples with artificial data contaminated by various noise components are presented. |
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| Keywords: | Magnetic anomalies Spheres Wavenumber domain Noise |
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