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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: Tippers at island geomagnetic observatories constrain electrical conductivity of oceanic lithosphere and upper mantle

Fig. 1

Short title: Model parameterization Detailed legend: a Sketch of the adopted model parameterization. The \(\sigma _1,\ldots ,\sigma _M\) conductivity values denote the unknowns, which are estimated using data from the observatory. Note that the bottom layer extends to infinity. b Example of a locally refined mesh for the Tristan da Cunha island with topography-conforming mesh

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