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Simple Interpretation of VLF Data  

Kim Hee Joon (Department of Environmental Exploration Engineering, Pukyong National University)
Nam Myung Jin (School of Civil, Urban & Geosystem Engineering Seoul National University)
Song Yoonho (Ground Water and Geothermal Resources Division, Korea Institute of Geoscience and Mineral Resources)
Suh Jung Hee (School of Civil, Urban & Geosystem Engineering Seoul National University)
Publication Information
Geophysics and Geophysical Exploration / v.8, no.2, 2005 , pp. 184-190 More about this Journal
Abstract
We have attempted to give some physical into the factors that control the response of subsurface target to plane wave excitation at VLF (very low frequency) frequencies. Although the VLF technique has some serious disadvantages, such as a lack of penetration depth and limited frequencies, its advantages are also extremely important to have made it by far the most popular electromagnetic technique in current use. In the magnetic-field measurement mode these lightweight, relatively low-priced tools allow us to survey large areas rapidly and inexpensively, to locate and roughly define subsurface electrical conductors. When used in the electric-field mode the technique is, in simple environments, capable of quantitative interpretation and once again the speed and relative cheapness of these devices makes them a natural 'first electromagnetic tool ' to use in reconnaissance mapping.
Keywords
VLF; electromagnetic technique; reconnaissance mapping;
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