NDLI: An application of three-dimensional electrical resistivity imaging for the detection of an underground waste-water system

Content Provider	Springer Nature Link
Author	Neyamadpour, Ahmad Taib, Samsudin Abdullah, W. A. T. Wan
Copyright Year	2009
Abstract	A 3D electrical resistivity imaging survey is presented in this paper. The objective was to investigate an underground wastewater system at the University of Malaya, Malaysia. Apparent resistivity data were collected along ten parallel lines using a Wenner-Schlumberger configuration; electrode cables were oriented in the x-direction with 3 m spacing. Roll-along measurements using a line spacing of 3 m were carried out covering a grid of 20 × 10 electrodes. All data sets were merged into a single data file in order to perform a 3D inversion. Two different 3D least squares algorithms, based on the robust inversion method and the smoothness-constrained technique, were used for the inversion of the apparent resistivity data. Both the horizontal and vertical extents of the anomalous zones found by inversion are displayed. The results indicate the superiority of the robust inversion method over the smoothness-constrained technique at this site. The results are in sufficient accordance with previously known information about the investigation area. The results show that 3D electrical resistivity imaging surveys, in combination with an appropriate 3D inversion method, can be highly useful for engineering and archaeological investigations as well as for environmental applications.
Starting Page	389
Ending Page	402
Page Count	14
File Format	PDF
ISSN	00393169
Journal	Studia Geophysica et Geodaetica
Volume Number	53
Issue Number	3
e-ISSN	15731626
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-08-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	electrical resistivity imaging environmental application robust method three-dimensional inversion Meteorology/Climatology Structural Geology Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology Geophysics

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