Aerial LiDAR Surveys

Aerial laser surveying also referred to as LiDAR (Light Detection And Ranging) is a technology aimed at the acquisition of 3D point group data (X, Y, and Z). Its main purpose is  the creation of Digital Surface Models (DSM). By measuring the time delay between the outgoing and incoming pulse it measures the distance to the ground. Using GPS/INS at the same time determines the position and altitude of the aircraft. Flying height and LiDAR instrument determine the point density of all measurements. This can go up to multiple points per square meter.

This data is applied to a wide range of fields, including disaster prevention, roads, erosion control, forests, agriculture, urban planning, 3D city models and rivers. On the basis of 3D data city planners can establish noise control cadastre, and develop more efficient means of urban land utilisation.

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