MNT LiDAR HD

Description

The MNT LiDAR HD product is the digital terrain model derived from the LiDAR HD point cloud acquired under the national LiDAR HD programme with a density of at least 10 pulses per m2 and 5 pulses per m2 above 3200 m altitude. It is derived from the "ground", "water" and "virtual" points contained in the classified HD LiDAR point cloud. This product must cover all of metropolitan France and the DROMs (Departments and Overseas Regions except French Guiana) by 2026. You can follow the progress of the programme on the following link: acquisitionslidarhd - My IGN map and the progress of the availability of the digital terrain model data here: treatmentslidarhd - My IGN card The content of these different classes is detailed in the product content description: LiDAR HD Version 1.0 - Content Description It is broadcast in the form of 1kmx1km slabs and is available in steps of 50 centimeters. A 5m step version will also be available soon. The digital models are composed of a rectangular grid, each node of which has an altitude. At a node of the grid corresponds a column number and a line number (c,l), two-dimensional coordinates (X,Y) and an altitude Z expressed in meters. The X and Y coordinates associated with the nodes of the numerical models are integer metric values in projection. These grids are written and provided in image format (.tif) Digital models from LiDAR HD are subject to restrictions on ZICADs (No Aerial Data Capture Zones) for which the information is confidential. Data is not provided on these areas in accordance with current regulations (in this case, a nodata value is used). The IGN disseminates another digital field model data entitled RGE ALTI®: the MNT LiDAR HD foreshadows the new generation of soil repository proposed by the Institute... Join the community of users of LiDAR HD products! Fill in the contact form available in the links below to integrate it.

Resources

Name Format Description Link
0 https://www.data.gouv.fr/fr/datasets/r/b5d9f7b1-06d0-419d-a2f3-88437e536e04
0 https://www.data.gouv.fr/fr/datasets/r/c56049f9-a729-4c32-9cda-2fef4b88d31c
0 https://www.data.gouv.fr/fr/datasets/r/38f7fb43-11b2-407b-b076-be262d9cede0
0 https://www.data.gouv.fr/fr/datasets/r/376ae5dd-2db8-4035-8990-2fb01ed5ad1e

Tags

  • altitude
  • nuages-de-points
  • precision-altimetrique
  • donnees-ouvertes
  • produits-derives

Topics

Categories