Crustal susceptibility maps of the Earth lithosphere

Lesur, Vincent. 2002 Crustal susceptibility maps of the Earth lithosphere. [Poster] In: OIST-4, Copenhagen, Denmark, 23-27 September 2002. (Unpublished)

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We derive models of susceptibility of the crust. The crustal magnetization is modelled as a series of magnetic dipoles at the centres of triangles forming an almost regular tessellation of the Earth’s surface. The orientation of the dipoles is defined using a model of the core field calculated from satellite data. The susceptibility model is obtained by fitting the satellite data set with a main field subtracted. A regularization is introduced by minimizing a measure of the roughness in space of the susceptibility.

Item Type: Publication - Conference Item (Poster)
Programmes: BGS Programmes > Seismology and Geomagnetism
NORA Subject Terms: Earth Sciences
Date made live: 23 Nov 2012 17:54

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