IJSRP, Volume 3, Issue 7, July 2013 Edition [ISSN 2250-3153]
Kenny M. Graham, Kwasi Preko, Bannor K. Antwi-Boasiako
Monitoring of soil water content (volumetric water content, VWC) is an important process in agricultural and ecological programs, and a vital process in flood and water resource management. There are several methods in estimating VWC but often these are time consuming, invasive and expensive. This paper investigates the applicability of a surface based geophysical technique, Ground-Penetrating Radar (GPR), for estimating the VWC in shallow soil (top 0.30 m of soil subsurface). The guided wave sounding, GWS, technique (an invasive application of the GPR technique) was used on a vegetable garden located at latitude 6.67 and longitude -1.56, south of the College of Engineering, KNUST, Kumasi, Ghana. The MALÅ ProEx GPR equipment using shielded antennae with a central frequency of 800 MHz was used for the measurements.