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. 10.1111/j.1365-246X.1987.tb00737.x

Before downloading, please read NORA policies.

[thumbnail of NORA_Beamish_GJRAS_1987.pdf]

Preview

Text
NORA_Beamish_GJRAS_1987.pdf - Accepted Version
Download (640kB) | Preview

Official URL: http://gji.oxfordjournals.org/content/90/2/485

Abstract/Summary

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):	10.1111/j.1365-246X.1987.tb00737.x
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)
URI:	https://nora.nerc.ac.uk/id/eprint/512230

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1111/j.1365-246X.1987.tb00737.x

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)