Open Access Digital Repository of Ministry of Earth Sciences, Government of India

One-dimensional inversion of geo-electrical resistivity sounding data using artificial neural networks - A case study

Singh, UK and Tiwari, RK and Singh, SB (2005) One-dimensional inversion of geo-electrical resistivity sounding data using artificial neural networks - A case study. Computers and Geosciences, 31 (1). pp. 99-108.

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Abstract

This paper deals with the application of artificial neural networks (ANN) technique for the study of a case history using 1-D inversion of vertical electrical resistivity sounding (VES) data from the Puga valley, Kashmir, India. The study area is important for its rich geothermal resources as well as from the tectonic point of view as it is located near the collision boundary of the Indo-Asian crustal plates. In order to understand the resistivity structure and layer thicknesses, we used here three-layer feedforward neural networks to model and predict measured VES data. Three algorithms, e.g. back-propagation (BP), adaptive back-propagation (ABP) and Levenberg–Marquardt algorithm (LMA) were applied to the synthetic as well as real VES field data and efficiency of supervised training network are compared. Analyses suggest that LMA is computationally faster and give results, which are comparatively more accurate and consistent than BP and ABP. The results obtained using the ANN inversions are remarkably correlated with the available borehole litho-logs. The feasibility study suggests that ANN methods offer an excellent complementary tool for the direct detection of layered resistivity structure.

Item Type: Article
Additional Information: Copyrights of this article belongs to Elsevier.
Uncontrolled Keywords: VES data; Ground water; Back-propagation; Adaptive back-propagation; Levenberg–Marquardt algorithm; ANN
Subjects: Geosciences (General)
Oceanography > temperature variations (oceanography)
Depositing User: NCAOR Library
Date Deposited: 13 Jun 2014 09:53
Last Modified: 13 Jun 2014 09:53
URI: http://moeseprints.incois.gov.in/id/eprint/553

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