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Authors: De Santis, A.*
Barraclough, R.*
Title: A Fractal Interpretation of the Topography of the Geomagnetic Scalar Potential at the Core-mantle Boundary
Title of journal: Pure and Applied Geophysics
Series/Report no.: 4 / 149 (1997)
Publisher: Birkhäueser Verlag
Issue Date: Aug-1997
Keywords: Geomagnetism
spatial power spectra
Abstract: The spatial power spectrum of the scalar potential (V) of the main geomagnetic field shows a power-law behaviour at the core-mantle boundary (CMB) and an almost uniform distribution of the corresponding phases. This is strong evidence for a fractal topography of V having a non-integer dimension of 2.2 (with an uncertainty of ±0.1) which is, indeed, found from an analysis of the power spectra of 32 spherical harmonic models of V spanning the interval 1647 to 1990.
Appears in Collections:04.01.03. Mantle and Core dynamics
04.05.02. Geomagnetic field variations and reversals
04.05.05. Main geomagnetic field
Papers Published / Papers in press

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