One of the most common applications of near-surface seismic testing is to identify the depth of the top of a bedrock unit in the subsurface. The two most effective seismic methods associated with this application are: 1) Seismic refraction, and 2) Multi-Channel Analysis of Surface Waves (MASW). Most people who are … [Read more...]
Geophysical Ground Conductivity Mapping
The use of electromagnetic (EM) geophysical methods to evaluate ground conductivity variations is an effective tool to resolve environmental issues. However, the EM profiling instruments commonly used (such as the Geonics EM31 ground conductivity meter) for such applications provide depth-averaged conductivity values … [Read more...]
Underground Storage Tanks
Geophysical tools have been used for years to locate unknown buried tanks, drums, and other objects, or properly delineate the depth and size of objects at known locations. A combination of at least two geophysical methods typically provides the most accurate interpretation of the location of such materials. … [Read more...]
Water Resources
Geophysical assessments of groundwater quality/behavior and water resources Geophysical methods such as electrical resistivity measure conductivity changes that are directly linked to groundwater characteristics. These methods can be used to examine the depth of the water table, identify the fresh/salt water … [Read more...]
