
Sub-bottom profiler
A sub-bottom profiler is a specialized sonar device used to examine the layers of sediment beneath the ocean or lake floor. It sends sound waves downward, which reflect off different underground layers based on their density and composition. By analyzing these echoes, scientists can create detailed images of what lies beneath the seabed, such as sediment buildup, underwater structures, or buried objects. This technology is valuable for geological studies, underwater archaeology, and laying submarine cables or pipelines. It provides a non-invasive way to "see" beneath the surface without physically drilling or excavating.