The University of Calgary has been conducting geophysical research at the Maya site of Maax Na in Belize, Central America for several years. The 2002-2004 field seasons have resulted in the acquisition of a number of 2-D and 3-D ground-penetrating radar (GPR) surveys using the 250 MHz Noggin Smart-Cart. Results employing an improved processing flow and new ways of approaching and presenting the GPR data will be discussed.
The ground-penetrating radar (GPR) processing was accomplished using the Reflexw software package and involved several steps including the application of gain, filtering, and a Q-filter deconvolution algorithm. The correct application of gain is critical in presenting a real geologic representation of the near-surface. Interpolation issues relating to a lack of regularly sampled data have been addressed. An initial attempt at interpolation of the coarsely gridded GPR data using 3-D Kirchoff time migration techniques has produced some promising results.
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