REFLECTIVITY OF ELECTROMAGNETIC (EM) WAVE IN SHALLOW GROUND PENETRATING RADAR (GPR) SURVEY

Authors

  • Nur Azwin Ismail Geophysics Section, School of Physics, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
  • Nordiana Mohd Muztaza Geophysics Section, School of Physics, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
  • Rosli Saad Geophysics Section, School of Physics, Universiti Sains Malaysia, 11800 USM Penang, Malaysia

DOI:

https://doi.org/10.11113/jt.v78.9500

Keywords:

Dielectric properties, reflection

Abstract

Ground Penetrating Radar (GPR) is a geophysical method that is widely used in geophysical surveys, civil engineering applications, archaeological studies and locating underground utilities or hidden objects. It works by sending electromagnetic (EM) wave into the ground by transmitter and recording the returning signals by receiver. The returning signals bring information about the materials and changes in material parameters at different depths. The changes in dielectric properties (ï¥) of two adjacent media result in EM wave reflections. In this study, several types of materials with different dielectric properties (ï¥) are used in order to identify the reflectivity of the EM wave. Results prove that the larger the dielectric contrast, the higher the reflection coefficient thus the stronger the reflection.

References

Martinez, A., and Byrnes, A. P. 2001. Modelling Dielectric-Constant Values of Geologic Materials: An Aid to Ground Penetrating Radar Data Collection and Interpretation. Kansas Geological Survey, University of Kansas.

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Gehgig, M. D., Morris, D. V. and Byrant, J. T. 2004. Ground Penetrating Radar for Concrete Evaluation Studies.

Technical Presentation Paper for Performance Foundation Association: 197-200.

Reynolds, J. M. 2011. An Introduction to Applied and Environmental Geophysics. Second Edition. John Wiley & Sons.

Cardimona, S. 2002. Subsurface Investigation Using Ground Penetrating Radar. 2nd International Conference on the Application of Geophysical and NDT Methodologies to Transportation Facilities and Infrastructure. Los Angeles, California.

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Published

2016-07-27

Issue

Vol. 78 No. 7-3: Highway and Material

Section

Science and Engineering

License

Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.

How to Cite

REFLECTIVITY OF ELECTROMAGNETIC (EM) WAVE IN SHALLOW GROUND PENETRATING RADAR (GPR) SURVEY. (2016). Jurnal Teknologi (Sciences & Engineering), 78(7-3). https://doi.org/10.11113/jt.v78.9500