bathymetric LiDAR
AAM's LiDAR experience and expertise includes Bathymetric LiDAR to measure the surface below the waterline.
Using different wavelength lasers from standard topographic LiDAR systems, bathymetric lasers will penetrate from between 0 to 50m deep, depending upon the clarity of the water. Penetration depths are measured in “secchi depth”, i.e. lower a circular disk into the water and the depth where the disk disappears from sight is equivalent to one secchi depth. Bathymetric LiDAR will generally penetrate up to 2 times the secchi depth.
Seabeds from AAM's recent bathymetric survey
While Bathymetric LiDAR is useful, it is still a "line of sight" survey method ... if you can t see it then the laser will not measure it. This makes bathymetric LiDAR suitable for areas such as Queensland's Gold Coast or East Malaysia's east coast, but unsuitable for sedimentary rivers or coastlines affected by turbidity or low visibility.
Seabeds from AAM's recent bathymetric survey
