1887

Abstract

Features of a modification of the controlled source audio-frequency magnetotellurics (CSAMT) sounding method with a powerful source and the long-range action of thousands kilometres are considered. Characteristics of electromagnetic field of a cable as a source in this CSAMT modification are analyzed and a waveguide zone at great distance from the source is allocated. Differences of the electromagnetic field structure in the waveguide zone are analyzed in comparison with the usually allocated near-field, intermediate and far-field zones. Technique of CSAMT data correction in the intermediate zone and an experimental example of its using are described.

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/content/papers/10.3997/2214-4609.20148616
2012-06-04
2021-12-09
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20148616
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