Efficacy of electrical resistivity tomography technique in mapping shallow subsurface anomaly |
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Authors: | Dewashish Kumar |
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Institution: | (1) Civil and Environmental Engineering Dept., College of Engineering, UAE University, Al Ain, UAE;(2) Geology Department, College of Science, UAE University, Al Ain, UAE;(3) Department of Soil and Water Sciences, College of Agriculture, SQU, Muscat, Sultanate Oman;(4) Department of Soil and Water, Ministry of Agriculture and Fisheries, Dubai, UAE |
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Abstract: | Electrical Resistivity Tomography is a versatile, fast and cost effective technique for mapping the shallow subsurface anomaly. It covers a wide spectrum of resistivity ranging from <1 Ohm.m to several thousands of Ohm.m. In this paper applications and utility of two-dimensional Electrical Resistivity Tomography (ERT) technique are discussed to look into huge data density coverage, different signal strengths of data from subsurface and their implications in resolving the aquifer zones, related geological structures etc. of the substratum ranging from alluvium to tectonically disturbed hard rock ridge region of the country. The major advantages and flexibility of ERT over conventional resistivity methods are also discussed. |
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