1.1 This guide covers the selection of surface geophysical methods, as commonly applied to geologic, geotechnical ,hydrologic, and environmental investigations (hereafter re-ferred to as site characterization), as well as forensic and archaeological applications. This guide does not describe the specific procedures for conducting geophysical surveys. Indi-vidual guides are being developed for each surface geophysical method.
1.2 Surface geophysical methods yield direct and indirect measurements of the physical properties of soil and rock and pore fluids, as well as buried objects.
