Functionality: Shallow-water surveys, providing a single-dimensional profile of the water depth below the instrument.
Data Output: Depth profiles, showing the water depth at each measurement point.
Coverage: Narrow and restricted to the path traveled by the survey vessel.
Functionality: Shallow-water surveys, navigation, and charting, providing precise depth measurements along the vessel’s track.
Data Output: Depth profile or a series of depth measurements recorded at regular intervals along the survey track.
Coverage: Limited to a single point directly beneath the transducer, so mapping large areas requires moving the device around extensively.
Functionality: Deep-water surveys and mapping large areas of the seafloor with high resolution and efficiency, providing detailed three-dimensional images of underwater features.
Data Output: Consists of a dense grid of depth measurements, typically organized into a three-dimensional point cloud or a gridded bathymetric model.
Coverage: Capable of covering larger areas in a shorter amount of time compared to SBEs, as they capture multiple points simultaneously