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Study on Saline Water intrusion into the Shallow Coastal Aquifers of Periyar River Basin, Kerala using Hydrochemical and Electrical Resistivity Methods
Seawater intrusion generally occurs when withdrawal of fresh groundwater from coastal aquifers results in declining groundwater levels, facilitating lateral and/or vertical migration of saline water causing deterioration of groundwater quality. Electrical resistivity sounding techniques and hydrochemical studies are widely used to determine the interaction between groundwater and saline water/seawater in coastal aquifers. Vertical electrical soundings were carried out at 15 locations in the midland and coastal plain reaches of Periyar River basin in central Kerala, India (9
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