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EXTRACTING A RADAR REFLECTION FROM A CLUTTERED ENVIRONMENT USING 3-D INTERPRETATION
Citation:
Young, R. A. AND J. Sun. EXTRACTING A RADAR REFLECTION FROM A CLUTTERED ENVIRONMENT USING 3-D INTERPRETATION. JOURNAL OF ENVIRONMENTAL AND ENGINEERING GEOPHYSICS. Environmental and Engineering Geophysical Society, Denver, CO, 3(3):121-131, (1998).
Impact/Purpose:
information
Description:
A 3-D Ground Penetrating Radar (GPR) survey at 50 MHz center frequency was conducted at Hill Air Force Base, Utah, to define the topography of the base of a shallow aquifer. The site for the survey was Chemical Disposal Pit #2 where there are many man-made features that generate radar echos interfering with the reflection from the base of the aquifer. The present paper shows how processing and interpretation of the 3-D volume using lines gathered in two perpendicular directions makes possible the extraction of a relatively weak target reflection from much stronger noise trains. The identification of the reflection from the base of the aquifer is established by correlation with soil boring lithology logs. This depth, approximately 7.0 to 8.5 m beneath the 60.9 x 30.4 m survey area, has been confirmed by cone penetrometer measurements of resistivity and tip stress.
