LIDAR (Light Detection and Ranging) is a remote sensing technology used to create three-dimensional mapping of the Earth’s surface. LIDAR emits high-frequency light most commonly from an overhead laser on an aircraft or helicopter and measures its reflectance with a scanner to produce an accurate, geo-referenced location of each point or object on the earth’s surface as well as its height. The result is a dense, three-dimensional point cloud of an area that can be used with photogrammetry to produce highly accurate three-dimensional digital elevation and digital terrain models (DEM and DTM).
AJD Geospatial Concepts has experience in using LiDAR point cloud data to prepare 3D DEMs and DTMs and manipulating them to analyze flood inundation, building heights and line of sight, parkland topography and trail location as well as in corridor mapping, building and feature extrusion. We are also skilled in using LiDAR for vegetation analysis and changes in forestation and site selection.
I have used LIDAR to: