A simple function for mapping induced currents

Beamish, David. 1987 A simple function for mapping induced currents. Geophysical Journal of the Royal Astronomical Society, 90 (2). 485-494.

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A linear inverse method that can be applied to the spatial structure of vertical fields has recently been presented. The application of the method to a regional geomagnetic dataset provided bounds on the lateral and vertical distribution of current concentrations, over a known anomaly. The results obtained by this rigorous analysis are compared with the results that can be obtained using a simple mapping function. The function is the anomalous vertical to anomalous horizontal field-ratio. The high degree of correspondence between the two sets of results confirms that the ratio is a useful, quantitative function for mapping geoelectric boundaries.

Item Type: Publication - Article
Digital Object Identifier (DOI):
Programmes: BGS Programmes > Other
Additional Keywords: electromagnetic induction, currents, mapping
NORA Subject Terms: Earth Sciences
Date made live: 16 Nov 2015 12:29 +0 (UTC)

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