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Measuring Soil Water Content with the Ground Penetrating Radar Surface Reflectivity Method: Effects of Spatial Variability
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Paper number 032276, 2003 ASAE Annual Meeting . (doi: 10.13031/2013.13823) @2003
Authors: David Redman, Lakshman Galagedara, Gary Parkin
Keywords: GPR, ground penetrating radar, soil moisture, reflectivity, water content
A ground penetrating radar (GPR) system elevated ~1 m above the surface can be used
to determine the near surface (<0.5 m) water content by measuring the surface reflectivity at the
air/ground interface. A vehicle mounted GPR surface reflectivity system could efficiently map water
content over large areas compared to the limited coverage possible with time domain reflectometry
(TDR), currently the most widely used and accepted technique in agricultural and hydrological