LiDAR is shorthand for ‘Light Detection and Ranging.’ LiDAR is an active remote sensing technology that converts pulses of laser light into measurements of landscape elevation (Shuckman & Renslow, 2014). It can be used to measure the elevation of bare earth (i.e., the terrain) or the elevation of objects on the terrain (e.g., vegetation or buildings). The product of a LiDAR scan is a 3D point cloud.

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Schuckman & Renslow (2014). Topographic Mapping with Lidar. The Pennsylvania State University. Retrieved from https://ww.e-education.psu.edu/geog481/

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