All our AUVs are equipped with DVLs with ADCP. They gather data about how fast the water is moving bellow the AUV as a succession of cells on a profile. By surveying on adjacent profile lines, a good 3D image of the current distribution can be obtained.
Current profiling is necessary for water discharge computation in rivers and canals and for current distribution mapping in open sea. Current data is an important input for the hydrodynamical modeling of the water flow and of sediment transport and deposition.