What is it about?
Time-lapse electrical resistivity tomography (TLERT) was used to determine the freshwater-lens morphology in local scale at Carey Island, Selangor, Malaysia. TLERT images with geological background formation history, borehole and hydraulic conductivity data were used to interpret the changes of morphology. Subsurface resistivity changes were measured.
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Why is it important?
TLERT monitoring using resistivity images on tide increment shows the freshwater lens morphology exhibited a thin and thick layer side by side of 400 m length of resistivity survey line. The occurrences of heterogeneous alluvium sediments in local scale created the different variability of hydraulic conductivity.
Perspectives
The results can assist in planning a strategy for sustainable groundwater exploration of local scale at the limited recharge area
Professor Zubaidah Ismail
University of Malaya
Read the Original
This page is a summary of: Use of time-lapse resistivity tomography to determine freshwater lens morphology, Measurement, February 2013, Elsevier,
DOI: 10.1016/j.measurement.2012.10.030.
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