Lidar Ocean Floor

Lidar which stands for light detection and ranging is a remote sensing method that uses light in the form of a pulsed laser to measure ranges variable distances to the earth.

Lidar ocean floor.

Subsea lidar to map ocean floor with centimeter resolution. Light detection and ranging lidar lidar is a method that uses both green and red light to survey a coastal region above and below sea level. Seafloor mapping also called seabed imaging is the measurement of water depth of a given body of water bathymetric measurements are conducted with various methods from sonar and lidar techniques to buoys and satellite altimetry various methods have advantages and disadvantages and the specific method used depends upon the scale of the area under study financial means desired measurement. These light pulses combined with other data recorded by the airborne system generate precise three dimensional information about the shape of the earth and its surface characteristics.

The range measurements are combined with position and orientation data to obtain accurate 3d spatial coordinates e g. Bathymetric lidar which uses blue green rather than the more traditional infrared lidar wavelengths to penetrate through water much more effectively is a relatively old idea but has tended to rely on bulky lasers that have meant systems weighed up to 300 kilos.