Advanced Geosciences, Inc.

Amistad Dam site


At the Amistad Dam site an investigation was made with a 56 electrode STING/Swift system to determine the location of leaks which have effectively drained the giant dam of water. As it was not immediately obvious which array type would return the best data three different arrays were recorded on the same electrode layout. The resulting three 2D profiles show both similarities and differences. The conclusion is that dipole-dipole and Schlumberger are good choices for lateral structures whereas Wenner gives high resolution near the surface but also 'noisy' data towards increasing depths. Wenner seems to have a strong signal/noise ratio but averages fine information and thus smooths the picture. Schlumberger seems to be a good compromise, good detail with lateral resolution and good signal/noise ratio resulting in good depth penetration.


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