In particular, it is a cost effective way to collect high-resolution information about the earth’s surface over large geographic areas.īefore collecting airborne lidar data, an organization will determine which data specifications they require such as the non-vegetated vertical accuracy (NVA) or the laser pulse density. This mode of elevation data collection is becoming increasingly popular among government agencies for a variety of reasons. Specifically, point cloud data collected in-flight using lidar scanners mounted on aircraft. In this article, we will be discussing one source of elevation data: airborne lidar. Elevation data can be created in a variety of ways from ground based land survey to remote sensing systems, with each source of data having their own unique opportunities and limitations. It is important to understand the source of any elevation data you decide to use.
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