Open AccessElectrical Resistivity Tomography for Mapping Groundwater Resources in Different Environ
Author(s) -
S.N. Rai
Publication year - 2020
Publication title -
journal of water engineering and management
Language(s) - English
Resource type - Journals
ISSN - 2582-6298
DOI - 10.47884/jweam.v1i2pp01-15
Subject(s) - electrical resistivity tomography , groundwater , geothermal gradient , resource (disambiguation) , geology , natural (archaeology) , groundwater resources , water resources , landslide , natural resource , electrical resistivity and conductivity , mining engineering , water resource management , environmental science , hydrology (agriculture) , aquifer , geophysics , geotechnical engineering , engineering , computer science , computer network , paleontology , ecology , electrical engineering , biology
A major share of water supply to meet the ever increasing demands for domestic, industrial and irrigation usages is derived from groundwater resources which are distributed over the entire globe. These resources are invisible from ground surface. The need for their delineation with high precision has led to the continuous advancement in the geophysical survey techniques and interpretation theory. Electrical resistivity tomography (ERT) is an outcome of such advancement in the conventional electrical resistivity methods used for exploration of this sub-surface natural resourceon the basis of distinctive reduction in the electrical resistivity value of groundwater bearing geological formations/structure in comparison to their host environs devoid of water. Objective of this paper is to present an overview of the application of ERTin delineation of groundwater resources in complex geological setup of problematicareas, sources of geothermal water, and delineation of groundwater pockets in mining areas in order to prevent natural disasters such as landslide in open cast mines with the help of related case studies. This kind of knowledge about the occurrence of groundwater/geothermal resources is essential to achieve the preset objectives of their management.