Single Beam Echo Sounder

Sub Bottom Profiler

Sustainable Energy Authority of Ireland

A cartographic technique that provides an apparent 3D configuration of the terrain on maps and charts by the use of graded shadows that would be cast by high ground if light was shining from a chosen direction

a device that transmits short high-pitched low frequency acoustic waves at brief intervals for purposes of detection, measurement, or identification of sub-seabed sediment structures

hidden obstacle

Side Scan Sonar

Sound Velocity Profiles

broad strip of an area

a device that converts variations in a physical quantity, such as pressure or brightness, into an electrical signal, or vice versa