Multibeam Sonar uses differential Global Positioning Systems and ship's altitude for spatial accuracy from five to one square meters. Depth readings are possible up to 6000 meters. It also sends multiple signals downward and to the side to create a swath. This data generates a great deal of three dimensional data. Therefore, imaging of complicated structures such as rock formations and shipwrecks is possible. This data can be combined with digital elevation data to create surface topography.
Multibeam Map of the West Florida Shelf