Alongside laser measurements, satellites and GPS, Sub Bottom Profilers are one of the core technologies used in Geological surveying. 

​

They can provide dependable data on the composition of materials below the seafloor as well as insight into the position and make-up of any buried obstructions that may be a hazard to subsequent engineering works.

A geological survey may also include aspects of bathymetry as a lot of insight can be gained from understanding changes in the landscape and environment.