Seawater intrusion mapping using electrical resistivity imaging (ERI) at Malaysian coastal area

Hazreek, Z. A. M. and Hashim, M. M. M. and Asmawisham, A. M. N. and Hafiz, Z. M. and Fairus, Y. M. and Fahmy, K. A. and Ashraf, M. I. M. and Rosli, S. and Nordiana, M. M. (2018) Seawater intrusion mapping using electrical resistivity imaging (ERI) at Malaysian coastal area. International Journal of Civil Engineering and Technology (IJCIET), 9 (9). pp. 1185-1193. ISSN 0976-6308

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Abstract

Natural process of seawater intrusion occurs in many coastal areas all around the world. Previous experiences have recorded that the phenomena will cause a problem to the freshwater aquifer due to its salinity contamination. Conventional approach on saltwater detection also suffers from efficiency in term of cost, time and data coverage. Hence, this study has introduced an electrical resistivity imaging (ERI) for saltwater intrusion mapping based on time lapse condition. Data acquisition and processing of ERI was performed using ABEM SAS 4000 and RES2DINV software. It was found that resistivity value was varied during different water tide due to migration of saltwater and freshwater within the aquifer. Saltwater, brackish water and freshwater was detected based on resistivity values of 0.1 – 5 Ωm, 5 – 15 Ωm and 50 – 100 Ωm respectively. This study was successfully demonstrated the applicable of ERI in saltwater intrusion mapping thus able to contribute to the sustainable future decision planning and development at the study area.

Item Type:	Article
Uncontrolled Keywords:	Saltwater Intrusion; Contamination; Electrical Resistivity Imaging.
Subjects:	T Technology > T Technology (General) T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes T Technology > TD Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes > TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion
Divisions:	Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Infrastructure and Geomatic Engineering
Depositing User:	UiTM Student Praktikal
Date Deposited:	22 Nov 2021 04:16
Last Modified:	22 Nov 2021 04:16
URI:	http://eprints.uthm.edu.my/id/eprint/3848

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