Research Journal of Applied Sciences

Year: 2018
Volume: 13
Issue: 11
Page No. 636 - 652

Geophysical Mapping and Characterization of Aquifer Zones of the Flooded East Coast Areas of Peninsula Malaysia

Authors : Kayode John Stephen, Mohd Hariri Arifin, Azimah Hussin, Nawawi Mohd Nordin Mohmd and Norsyafina Roslan

Abstract: During the periods from 15 December 2014-3 January 2015, East coast Peninsula Malaysia was characterized by heavy monsoon rains that left many places with devastating effects ranged from a loss of lives and properties, economic, social, health and educational sectors were not spared by the ugly incidence. The level of loss and destructions led to this study of the primary objectives of bringing together the skills of geoscientists to investigate the nature of the subsurface in the affected areas that are prone to flooding through the application of active methods of geophysical prospecting that employed the electrical resistivity and also that of induced polarization methods of geophysical survey with a view to determining the lithological units and their corresponding depths that are water bearing for groundwater exploitation. Current monitoring programs for surface and ground water though have a very high resolution meteorological, chemical and hydrological observation data sets but the emphasis on the subsurface environment which controls the flow pathways for this surface water lacks in the previous studies in this area. This could be unconnected to the complexity of the subsurface geology and the difficulty often experienced in accurately characterizing the subsurface structures. This study aimed at proposing suitable sites for remediation boreholes sitting that will serve to dampen future occurrences of this catastrophic event that led to the untimely deaths of many and displacement of over 60,000 people that were forced to flee their homes in the worst affected states of Kelantan, Pahang, Perak and Terengganu. Several geophysical field survey were conducted in the selected areas due to the high degree of spatial heterogeneity nature of the subsurface structures underlay the area. We applied a field scale surface active geophysical methods which include direct current electrical resistivity and induced polarization surveys to map the severe floods prone zones. In this study, we can locate nine promising lines where the underlain rocks were deeply weathered and fractured. The minimum depth of >5 m was delineated at Menak Urai Lama, longitude 102°14’9.8” and latitude 5°23’30.1”. Whereas the study delineates maximum depth of more than 40 m at Pemberian, longitude 102°14’49.7” and latitude 5°20’06” along the school football field. The study traced the growing affinity for surface and subsurface waters by prospecting for interventions and therefore, suggests guidelines for the borehole sitting.

How to cite this article:

Kayode John Stephen, Mohd Hariri Arifin, Azimah Hussin, Nawawi Mohd Nordin Mohmd and Norsyafina Roslan, 2018. Geophysical Mapping and Characterization of Aquifer Zones of the Flooded East Coast Areas of Peninsula Malaysia. Research Journal of Applied Sciences, 13: 636-652.

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