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Time lapse resistivity investigations on salinity changes at ex-promontory land;Carey Island, Selangor

Tajul Baharuddin, Mohamad Faizal and Taib , Samsudin and Hashim , Roslan and Zainal Abidin, Mohd Hazreek (2010) Time lapse resistivity investigations on salinity changes at ex-promontory land;Carey Island, Selangor. In: Seminar Geofizik Kejuruteraan & Sekitaran 2010, 6 Januari 2010, Bangunan Geologi PPSSSA.

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Abstract

A time-lapse resistivity measurement was used to study the effect of salinity to groundwater aquifers at ex-promontory land of Carey Island in Malaysia. Resistivity was measured through an ABEM Terrameter SAS 4000, combined with ES 10-64 electrode selector. The highest percentage of resistivity changes at the unconftned aquifer occurred after 1 hour maximum of high tide with value ranges from -80 to 450%. In contrast, the first semi confined aquifers, located 1.5km of shoreline showed the highest percentage occurred after 6 hours maximum of high tide with value ranges from -45 to 65%. It is expected that the percentage of resistivity changes will reduce for both aquifers system during wet season which will occur in October until February. This study will assist the modelers in obtaining the preliminary information of hydrogeology condition by using time-lapse resistivity measurements on at ex-promontory land.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Divisions: Faculty of Civil and Environmental Engineering > Department of Infrastructure and Geomatic Engineering
Depositing User: Faizul Sahari
Date Deposited: 05 Oct 2011 03:49
Last Modified: 05 Oct 2011 03:49
URI: http://eprints.uthm.edu.my/id/eprint/1927
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