geospatial data
LiDAR (Light Detection And Ranging), also referred to as laser-radar, is a rapidly maturing remote-sensing and survey technology that has spaceborne, airborne, and ground-based sensor platforms, each chosen depending on the resolution and application of data required. LiDAR differs from many passive remotesensing technologies, such as aerial photography, because it “actively” illuminates the earth's surface (or ocean floor) by emission and reception of laser light pulses. [Source: Encyclopedia of Geographic Information Science; LiDAR]
LiDAR
methods