Geophysical Methods - Overview

Technos has pioneered the use of geophysical methods to environmental, geotechnical, and groundwater applications.  Geophysical methods provide measurements of physical, chemical, or electrical properties associated with subsurface features.  They are used to non-invasively sample large areas and provide more complete coverage than borings alone.  Geophysical methods can be applied on scales ranging from regional to site-specific; on land or under water.  Each method has its advantages and limitations, and we invite you to browse a summary of each of the methods on this website.   A summary of many of the most common surface geophysical methods is available from our Surface Geophysics TechNotes