An aircraft with a lidar sensor mounted below it, flies back and forth across the area of interest. The sensor constantly emits laser pulses and collects the reflections, combining this with location data from the aircraft’s GPS.
The laser reflections collected by the lidar sensor are processed into a huge cloud of points. These points have an x y and z value representing the 3D location of that spot height in the real world.
Watch the video below to explore a point cloud.
Four flights were conducted between the 23rd and 25th April 2020 to complete the lidar data collection for Cranborne Chase.