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A comparison of time and frequency domain geomagnetic sounding

Beamish, David. 1983 A comparison of time and frequency domain geomagnetic sounding. Geophysical Journal of the Royal Astronomical Society, 73 (3). 689-704. https://doi.org/10.1111/j.1365-246X.1983.tb03340.x

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Abstract/Summary

A three-site geomagnetic data set from the Borders region of southern Scotland is used to examine the empirical relationships established by differential geomagnetic sounding experiments. A time domain analysis of such relationships reveals time domain transfer functions which appear to be almost independent of time. A frequency domain analysis is then used to illustrate both a significant phase rotation and a significant dependence on period of the equivalent frequency domain response functions. The formalism of conventional geomagnetic sounding is re-examined. It is found that difference fields are not required to establish the appropriate horizontal field relationships.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1111/j.1365-246X.1983.tb03340.x
Programmes: BGS Programmes > Other
NORA Subject Terms: Earth Sciences
Date made live: 07 Jun 2018 08:41 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/520206

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