Journal ArticleDOI
Recent developments in the direct-current geoelectrical imaging method
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TLDR
There have been major improvements in instrumentation, field survey design and data inversion techniques for the geoelectrical method over the past 25 years as mentioned in this paper, which has made it possible to conduct large 2D, 3D and even 4D surveys efficiently to resolve complex geological structures that were not possible with traditional 1-D surveys.About:
This article is published in Journal of Applied Geophysics.The article was published on 2013-08-01. It has received 702 citations till now. The article focuses on the topics: Computer technology.read more
Citations
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Journal ArticleDOI
Bulk density and water content-dependent electrical resistivity analyses of different soil classes on a laboratory scale
David Bertermann,Hans Schwarz +1 more
TL;DR: In this paper, electrical conductivity was measured in dependency of bulk density and water content by applying a laboratory setup which enables a comparison to natural in-situ conditions, and a correlation coefficient of r2 ǫ = 0.95 has been developed.
Dissertation
Electrical Resistivity Method for Water Content Characterisation of Unsaturated Clay Soil
TL;DR: In this paper, an automated multi-electrode resistivity system was developed for the water content characterisation of unsaturated clay soil, which was tested using a wide range of high precision reference resistors and different soils, and validated using commercial standard instruments.
Journal ArticleDOI
The forensic geophysical controlled research site of the University of Brasilia, Brazil: Results from methods GPR and electrical resistivity tomography
Márcio Maciel Cavalcanti,Marcelo Peres Rocha,Marcelo de Lawrence Bassay Blum,Welitom Rodrigues Borges +3 more
TL;DR: Electrical resistivity results showed that the Wenner-Schlumberger array presents a better resolution of the lateral boundaries of the burials, and the dipole-dipole array present a better sensitivity to heterogeneity of the buried materials.
Journal ArticleDOI
3D electrical resistivity tomography technique for the investigation of a construction and demolition waste landfill site
TL;DR: In this paper, a 3D electrical resistivity tomography (ERT) geophysical survey conducted in order to calculate the geometrical features and general structure of a construction and demolition waste layer in an old unregulated landfill prior to redevelopment is presented.
Journal ArticleDOI
3-D cross-gradient joint inversion of seismic refraction and DC resistivity data
TL;DR: Wang et al. as mentioned in this paper proposed a 3D cross-gradient joint inversion algorithm for seismic refraction and DC resistivity data, where a limited memory quasi-Newton approach was used to perform the optimization of the objective function.
References
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Journal ArticleDOI
The electrical resistivity log as an aid in determining some reservoir characteristics
TL;DR: The usefulness of the electrical resistivity log in determining reservoir characteristics is governed largely by: (1) the accuracy with which the true resistivity of the formation can be determined; (2) the scope of detailed data concerning the relation of resistivity measurements to formation characteristics; (3) the available information concerning the conductivity of connate or formation waters; and (4) the extent of geologic knowledge regarding probable changes in facies within given horizons, both vertically and laterally, particularly in relation to the resultant effect on the electrical properties of the reservoir as mentioned in this paper.
Book
An Introduction to Applied and Environmental Geophysics
TL;DR: The first edition of the book as mentioned in this paper contains case histories, and descriptions of geophysical techniques not previously included in such textbooks, but the level of mathematics and physics is deliberately kept to a minimum but is described qualitatively within the text.
Journal ArticleDOI
Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-Newton method1
M.H. Loke,R. D. Barker +1 more
TL;DR: In this paper, a smoothness-constrained least-squares method was used for the interpretation of data from resistivity tomography surveys on an 80486DX microcomputer.
Rapid least-squared inversion of apparent resisitivity pseudosections by a quasi-Newton method
M. H. Loke,R. D. Barker +1 more
TL;DR: In this article, a smoothness-constrained least-squares method was used for the interpretation of data from resistivity tomography surveys on an 80486DX microcomputer.
Journal ArticleDOI
Occam's inversion to generate smooth, two-dimensional models from magnetotelluric data
TL;DR: In this paper, the authors propose an extension of the existing 1-D algorithm, Occam's inversion, to smooth 2-D models using an extension to the existing Occam inversion.
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