Lidar 2019 — Digital Field Model (NTM)

**Technical details:** — Raster resolution: 50 cm. — Format: GeoTIF (Georeferenced Raster) — Coordinate system and projection: LUREF (EPSG 2169) ** Additional explanations:** The digital field model is derived from the data from the 2019 LiDAR flight. For the calculation of the NTM, only the cloud points classified as “ground” were used. With a density of 15 points per m², several points may be located in a pixel. The pixel value (50x50 cm) represents the mean of the altimeter values within the pixel surface. The MNT contains for each pixel the value of the absolute height. The visualisation of the model is done in “hillshade” mode, which is based on a simulation of a sunshine, allowing a more intuitive interpretation. For reasons of protection of certain sensitive sites and national archaeological heritage, only a desensitised and reduced resolution version for wooded areas is made available to the general public. **Viewing:** https://map.geoportail.lu/theme/main?version=3&zoom=8&X=667917&Y=6394482&lang=fr&layers=1795&opacities=1&bgLayer=basemap_2015_global