Geostatistical analysis of a ground penetrating radar reflection image
can be used to quantify the maximum correlation direction and the
range of horizontal and sub-horizontal radar reflections. A review
of previous work, and an analysis of a photograph of layered sediments,
suggest that the vertical resolution of a radar image strongly affects
its lateral correlation structure. Numerical modeling was used to
generate synthetic radar sections and investigate the effect of the
vertical resolution of the radar measurement on the link between
the correlation structure of the radar reflections and the true correlation
structure of subsurface water content. The horizontal range of the
radar reflections decreased as the vertical resolution improved,
closely matching that of the water content when the vertical resolution
was approximately equal to the vertical range of the water content.