LIDAR is a relatively new technological tool (of optical teledetection) that can be used to accurately georeference terrain features; in some literature LIDAR (LIght Detecting And Ranging) is referred to as laser altimetry. A LIDAR system is composed of a laser scanning system, global positioning system (GPS), and an inertial measuring unit (IMU). We have aerial and terrestrial LIDAR.

Digital Elevation Model; laser altimetry; Digital Terrain Model

Presentation: oral