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
Using advanced NDT for historic buildings: Towards an integrated multidisciplinary health assessment strategy
TL;DR: In this article, the reliability of non-destructive techniques (NDT) is examined in connection with the technique's application to a historic Ottoman building located in Urla, Izmir, Turkey NDT techniques are effective in the identification of such defects as cavities and water ingress hidden within a structure, in addition providing information on material properties.
Journal ArticleDOI
Multi-frequency electrical impedance tomography as a non-invasive tool to characterize and monitor crop root systems
Maximilian Weigand,Andreas Kemna +1 more
TL;DR: A promising technique in this respect is electrical impedance tomography (EIT), which utilizes low-frequency technology for the charactization and monitoring of root growth and function in the field.
Journal ArticleDOI
Sinkhole investigation in an urban area by trenching in combination with GPR, ERT and high-precision leveling. Mantled evaporite karst of Zaragoza city, NE Spain
Jorge Sevil,Francisco Gutiérrez,Mario Zarroca,G. Desir,Domingo Carbonel,Jesús Guerrero,Rogelio Linares,Carles Roqué,Ivan Fabregat +8 more
TL;DR: In this paper, a sinkhole is located beneath a street and has led to the demolition of buildings, creating a risk situation that requires careful assessment and management, using a relatively inexpensive and highly objective trenching technique in sinkhole investigations.
Book ChapterDOI
Review of soil salinity assessment for agriculture across multiple scales using proximal and/or remote sensors
TL;DR: A review of the geophysical and remote imagery techniques used to assess soil salinity variability within the root zone from field to regional scales is presented in this article, where the authors synthesize existing knowledge to give new insight into the direction of field-to-regional-scale salinity mapping.
Journal ArticleDOI
Stochastic inversion of magnetotelluric data using a sharp boundary parameterization and application to a geothermal site
TL;DR: In this paper, a Bayesian model was developed to invert magnetotelluric (MT) data using a 2D sharp boundary parameterization, where the locations of interfaces and resistivity of the regions formed by the interfaces were assumed to be independent in the vertical direction and dependent along the lateral direction.
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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