Assessment Of The Performance Of Common 2-D Resistivity Arrays
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Date
2018-05
Authors
., Amsir
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
The assessment of the performance for electrical resistivity arrays were
carried out by comparing the penetration depth, horizontal / vertical coverage and
sensitivity index of each array. The research objective is to identify the performance
of common arrays; Wenner (WNR), Wenner-Schlumberger (WSCH), Dipole-dipole
(DPD), and Pole-dipole (PDP) relative to each other (PDP:WNR, PDP:WSCH,
PDP:DPD, DPD:WNR, DPD:WSCH and WNR:WSCH) and presented in numerical
form. Five synthetic models and one field study were created for assessment of the
performance using the four different arrays. Based on the assessment, the comparison
of PDP:WNR array shows highest percentage difference in penetration depth for
both synthetic model and field study with value of 54.60 % and 55.03 %
respectively while the highest percentage difference in horizontal / vertical coverage
is 66.67 % for synthetic model and 79.88 % for field study. The WSCH:WNR array
shows lowest percentage difference for penetration depth with value of 10.12 % for
synthetic model and 10.36 % for field study. On the other hand, the PDP:DPD array
shows lowest percentage difference of assessment for horizontal / vertical coverage
with value of 5 % for synthetic model and 19.04 % for field study. The last
assessment was sensitivity index which was only applied to the synthetic model. The
comparison of PDP:DPD array shows the highest percentage difference of sensitivity
index of 98.20 % at level 1 while at level 2 to 7, PDP:WSCH array showed highest
percentage difference of 91.15 %, 86.45 %, 82.86 %, 80.92 %, 79.04 %, and 77.62
% respectively.
Description
Keywords
The assessment of the performance , for electrical resistivity arrays