Geoelectrical investigation to delineate the groundwater potential aquifers in Chittar river basin, Southern India

Study on electrical resistivity of the subsurface helps to evaluate the geoelectrical parameters and groundwater potential of river basin. Chittar river basin falls under the hard rock terrains of Tamil Nadu, so, weathered and fractured horizons may be the target of groundwater. Sixty vertical elect...

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Bibliographic Details
Published in:International journal of river basin management 2021-10, Vol.19 (4), p.493-508
Main Authors: Nair, Nithya C., Srinivas, Y., Rajkumar, S., Arun Bose, S.
Format: Article
Language:English
Subjects:
Anisotropy
Aquifers
Chittar river basin
D-Z parameters
Electrical resistivity
Geoelectricity
Groundwater
Groundwater basins
Groundwater potential
groundwater potential aquifer
Parameters
River basins
Rivers
Rocks
Soil layers
Soundings
vertical electrical sounding
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Summary:Study on electrical resistivity of the subsurface helps to evaluate the geoelectrical parameters and groundwater potential of river basin. Chittar river basin falls under the hard rock terrains of Tamil Nadu, so, weathered and fractured horizons may be the target of groundwater. Sixty vertical electrical soundings were conducted to understand the groundwater potentiality in Chittar basin. The inverted results of the sounding data reveal that the study area is characterized by four to five geoelectric layers. From the interpreted results, it was observed that aquifers in 32 VES locations are found to have moderate to good productivity. This study reveals that top layer is mostly thin soil cover followed by weathered or semi-weathered rock. The aquifer in most of the study area is found in the second layer and majority of these VES stations are located along the river course, so the aquifer is shallow in nature. D-Z parameters like longitudinal conductance and coefficient of anisotropy also support the interpretation.
ISSN:1571-5124
1814-2060
DOI:10.1080/15715124.2019.1700514