The metropolitan multi-beam bathymetry is a representation of the submerged part of the surface of the coastal strip. The seabed is represented with a very dense 3D point cloud with X, Y and Z coordinates. It is measured with a multi-beam echosounder, and provides very detailed data that can represent submerged elements of relatively small dimensions (even less than a meter).

Cloud of lidar points (3D) with a minimum density of 8 points/m2, and 15 cm color and infrared orthophotos derived from the same collection.

Cloud of lidar points (3D) with a minimum density of 8 points/m2, and 15 cm color and infrared orthophotos derived from the same collection.