AQUIFER CHARACTERISTICS STUDIES USING GEOPHYSICAL TECHNIQUES INAYACUT AREA OF BAKKIKAYAM REGULATOR, MALAPPURAM, KERALA

N.C. SMEGHA¹, S. SAJEENA²*
¹Department of Irrigation and Drainage Engineering, Kelappaji College of Agricultural Engineering & Technology, Tavanur, 679573, Kerala Agricultural University, Thrissur, 680656, Kerala, India
²Department of Irrigation and Drainage Engineering, Kelappaji College of Agricultural Engineering & Technology, Tavanur, 679573, Kerala Agricultural University, Thrissur, 680656, Kerala, India
* Corresponding Author : sajeenahakkim@gmail.com

Received : 20-01-2022     Accepted : 27-02-2022     Published : 28-02-2022
Volume : 14     Issue : 2       Pages : 11126 - 11130
Int J Agr Sci 14.2 (2022):11126-11130

Keywords : Vertical Electrical Sounding, Sounding curve, Wenner Electrode Configuration, IPI2WIN software
Academic Editor : Dr Veena Sharma, B T Dangat
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Soil and Water Conservation Engineering, Kelappaji College of Agricultural Engineering & Technology, Tavanur, 679573, Kerala Agricultural University, Thrissur, 680656, Kerala, India for sanctioning the research project and providing all financial assistance. Authors are also thankful to Groundwater Department, Malappuram, Govt. of Kerala and CWRDM, Kozhikode for their assistance in field investigations, providing information, field data and helpful discussions
Author Contribution : All authors equally contributed

Aquifer characteristics studies was conducted at the ayacut areas of Bakkikayam regulaor situated across the Kadalundi River Pandikasala, Vengara, Malappuram district using earth resistivity techniques. In order to analyze the aquifer characteristics of the study area, Vertical Electrical Sounding (VES) surveys was carried out using Signal Stacking Resistivity Meter (MODEL-SSR-MP-ATS) at 18 locations and were interpreted using IPI2WIN software. From sounding curve interpretation, 2 to 4 subsurface layers were identified within the study area and resulting sounding curves were H, K, A, HK, QH, KH and AK. The presence of three layers substrata was represented by H, K, A and Q sounding curves, while the combination curves such as HK, QH, KH and AK curves represents four layers sub strata. From the VES studies, it could be concluded that, top soil of the study area is either laterite soil or hydromorphic soil of thickness 0.75 to 4 m, followed by laterites with varying hardness to a depth of 4 m to 17 m. Lithomargic clay of thickness less than 2 m is seen below the laterites in some places. These layers are overlying weathered rock of 2 to 14 m thickness followed by hard rock with or without fractures

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