NDLI: Multilayer resistivity interpretation and error estimation using electrostatic images

Content Provider	IEEE Xplore Digital Library
Author	Lagace, P.J. Mai Hoa Vuong Lefebvre, M. Fortin, J.
Copyright Year	1986
Abstract	This paper presents a method for generating groups of electrostatic images for the estimation of soil parameters in the case of multilayered horizontal soil. The method can be utilized for the interpretation of resistivity sounding measurements of stratified soil. The maximum errors of the calculated resistivity values can also be estimated and are used to validate the soil model. Errors and variations in apparent resistivity values used in the interpretation process can originate from slow convergence in calculations or variations during field measurements, such as local fluctuations in soil resistivity at points of measurements and instruments precision. An estimation of the effect of these variations on the calculated soil model parameters can be used to provide a confidence level in the results. This paper demonstrates the necessity of evaluating the sensitivity of the soil parameters and proposes methods of estimating a confidence level in the soil model. Confidence levels are also used to delimit boundaries during geophysical inversion with respect to the information available in the field measurements. Simulation results are presented for three-layer soil
Sponsorship	IEEE Power Engineering Society
Starting Page	1954
Ending Page	1960
Page Count	7
File Size	633599
File Format	PDF
ISSN	08858977
Volume Number	21
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Nonhomogeneous media Conductivity Error analysis Geophysical measurements Soil measurements Parameter estimation Electrostatic measurements Convergence Fluctuations Instruments Wenner method Electrostatic images geophysical inversion grounding Marquardt method resistivity measurements resistivity sounding soil resistivity
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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