bathymetricLiDARjärjestelmät
Bathymetric LiDAR is an airborne remote sensing technique that uses green laser light to map submerged surfaces, including coastlines, shallow seas, rivers, and lakes. It records returns from the water surface and the seabed, enabling depth measurements and the production of bathymetric digital elevation models for shallow coastal zones.
The system emits short laser pulses toward the water and records the time of flight for surface
Outputs include 3D point clouds, bathymetric DEMs, and orthophotos. Processing may involve water-column correction, bottom detection,
Applications include coastal mapping, harbor surveys, flood risk assessment, habitat mapping, and infrastructure planning. Bathymetric LiDAR
Compared with active sonar, bathymetric LiDAR provides high-resolution surface data over wide areas but typically yields