Here are a few links to external sites in which you can find more information about geophysical methods and applications.
Manufacturer of ground resistivity instruments.
Provides leadership, advocacy, and applied research in environmental and engineering geology.
The purpose of this website is to provide highway engineers with a basic knowledge of geophysics and
nondestructive test (NDT) methods for solving specific engineering problems during geotechnical site
investigation, construction, and maintenance of highways.
The website provides scientific interests, and promotes fellowhip of persons who enjoy engineering and geology.
Software for Electromagnetic Instruments and GPS Positioning.
Manufacturer of magnetometers and seismographs.
Manufacturer of Electromagnetic Instruments.
Manufacturers of borehole geophones, seismic roll box, and land streamers.
Specialist in PC based geophysical software.
Manufacturer of field computers for geophysical data acquisition.
Manufacturer of ground penetrating radar systems.
Manufacturer of borehole magnetometers, pipe and cable location equipment, and magnetic field measuring equipment.