Measurement of Water Table Fluctuations in a Sandy Soil Using Ground Penetrating Radar

Abstract

A study was conducted to assess the impacts of ground-penetrating radar (GPR) calibration techniques on the water table depths calculated from the GPR graphical output. A Geophysical Survey Systems, Inc., SIR-8 impulse radar with a 120 Mhz antenna operating at a scanning rate of 100 ns was used to produce GPR images along seven, 130 m transects of a field site. The study site is located near Tifton, Georgia, in the Coastal Plain physiographic region of southeastern U.S. The soil on the study site is classified as a Lakeland sand with profile depths from 1.9 to 4.4 m. Underlying the sand is a restricting layer consisting of tight clays.