Description
The digital terrain model (DTM) contains high-precision elevation data for the earth's surface (dot grid with resolution 0.5m) without vegetation and buildings. The data was collected using the Airborne Laser Scanning (LiDAR) method. The LiDAR aerial flight of 25.07.2014 took place during the leafy growing season (which favoured a very strong reflection of the laser beams in the wooded areas), while the LiDAR aerial flight of 05.04.2014 took place during the unleavened growing season. For this reason, the derived DTM from April 5, 2014 depicts the terrain (earth surface without vegetation and buildings) better than the DTM of the LiDAR flight from July 25, 2014.
Resources
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https://www.ag.ch/de/verwaltung/dfr/geoportal/geodaten/geodatenliste?rewriteRemoteUrl=/details/AGIS.KAI_LIDARDTM |