Significance of using electromagnetic (EM) method for groundwater investigation in Sedimentary and Basement terrains: a review
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This review article briefly explores the significance of electromagnetic
method among other methods used in groundwater investigation. Groundwater
investigation can be carried out using various methods such as seismic, magnetic,
electromagnetic (EM), electrical resistivity, gravity, remote sensing. Each with its
peculiar implication. This paper discusses the effectiveness of EM in detail
subsurface investigation for groundwater exploration through an extensive review
of the literature. Relevant literatures within the last three years were considered to
understand the groundwater features using the EM method over other techniques.
Studies using other methods were also examined to compare their reliability in
groundwater studies to EM method. This study discovered that the EM method is
cheaper, faster and of higher precision in identifying groundwater bearing
formation and possible structural control of which the rest technique do not posess
such attribute. On this note, there should be a growing interest in the use of EM
techniques for groundwater mapping, which gives credible and classification of
structural features of both basement and sedimentary terrain groundwater
characteristics.
Keywords
QC Physics, RA0421 Public health. Hygiene. Preventive Medicine