Single Beam Sonar Bathymetry

Single beam surveys use survey grade echo sounders that digitally log both a detected bottom depth and the full water column acoustic signal. Data are precisely positioned by GNSS with Real Time Kinematic (RTK) or Post-Processed Kinematic (PPK) techniques. This methodology improves overall survey vertical accuracy by capturing water level changes at the survey vessel, deviations in vessel height in the water due to squat and settlement from vessel speed fluctuations, and wave induced motion.

DEA owns several purpose built vessels to maximize productivity. In addition to vessels between 19’ to 33’, we have customized personal watercraft, jet powered whitewater rescue craft, catarafts, kayaks and remote operated platforms. Click on the image to the right for YouTube video demonstration.