Lidar - Digital models (terrain, canopy, slope, level curve)

Description

__The link: *Access the data directory* is available in the section*Dataset Description Sheets; Additional Information*__. Products derived from lidar (Light Detection and Ranging) are generated as part of the provincial lidar sensor data acquisition project. It is therefore to facilitate the use of raw lidar data and optimize its benefits that the Ministry of Natural Resources and Forests (MRNF) generated and made available products derived from lidar in a user-friendly format. Lidar technology makes it possible to accurately provide information such as ground altitude, forest cover height (canopy), slopes, and contour lines. Here is the list of the five derivatives: + Digital terrain model (spatial resolution: 1 m) + Digital terrain model in shaded relief (spatial resolution: 2 m) + Canopy height model (spatial resolution: 1 m) + Slopes (spatial resolution: 2 m) + Level curve (range: 1 m) This data covers almost all of the southern part of the province. This map is distributed by map sheets at a scale of ** 1:20,000**. ⚡ If you want to download **lidar point clouds**, please consult the Quebec Lidar Data page. __ ⚠️ 1) Note that__ the resolution of the following products (digital terrain model, digital terrain model in shaded relief, canopy height model and slopes) **has been slightly degraded** when viewed in the interactive map to ensure efficient display. __ ⚠️ 2) Note that__ **the planimetric and altimeter accuracy of the curves is variable**, but inevitably lower than that of the lidar surveys used to generate them. Moreover, it is recommended to use these level curves only for visual representations, and not for quantitative analyses. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Resources

Name Format Description Link
Availability of lidar - Digital models (terrain, canopy, slope, level curve) PDF https://cdn-contenu.quebec.ca/cdn-contenu/forets/documents/recherche/Disponibilite_produits_derives_LiDAR.pdf
Products presenting the concept of slope PDF https://diffusion.mffp.gouv.qc.ca/Diffusion/DonneeGratuite/Foret/IMAGERIE/Produits_derives_LiDAR/LISEZ-MOI/Produits_presentant_la_notion_de_pente.pdf
📝 Metadata for lidar acquisitions ESRI Shape https://diffusion.mffp.gouv.qc.ca/Diffusion/DonneeGratuite/Foret/IMAGERIE/Produits_derives_LiDAR/Metadonnees.zip
READ ME PDF https://diffusion.mffp.gouv.qc.ca/Diffusion/DonneeGratuite/Foret/IMAGERIE/Produits_derives_LiDAR/Produit_derive_lidar/01-Documentation/LISEZ-MOI_Courbes_niveau_1m.pdf
🔗 Download links per sheet 1/20,000 CSV https://diffusion.mffp.gouv.qc.ca/Diffusion/DonneeGratuite/Foret/IMAGERIE/Produits_derives_LiDAR/Produit_derive_lidar/03-Telechargement/URL_Lidar.csv
🔗 Download links per sheet 1/20,000 (👁️ Overview of sheets) GeoJSON https://diffusion.mffp.gouv.qc.ca/Diffusion/DonneeGratuite/Foret/IMAGERIE/Produits_derives_LiDAR/Produit_derive_lidar/03-Telechargement/URL_Lidar.geojson
ArcGIS symbology LYR https://diffusion.mffp.gouv.qc.ca/Diffusion/DonneeGratuite/Foret/IMAGERIE/Produits_derives_LiDAR/Produit_derive_lidar/07-Symbologie/ArcGIS/ArcGIS.zip
Qgis symbology ZIP https://diffusion.mffp.gouv.qc.ca/Diffusion/DonneeGratuite/Foret/IMAGERIE/Produits_derives_LiDAR/Produit_derive_lidar/07-Symbologie/Qgis/Qgis.zip
📍 Web mapping service HTML https://geoegl.msp.gouv.qc.ca/ws/mffpecofor.fcgi?
A Guide to Surface Deposit and Borrow Pit Identification Using LiDAR PDF https://mrnf.gouv.qc.ca/documents/forest/Guide_utilisation_lidar_ang.pdf
Province-Wide LiDAR Data Acquisition PDF https://mrnf.gouv.qc.ca/documents/forest/lidar-data-acquisition.pdf
User's Guide: Products Derived from LiDAR Data - 2nd edition PDF https://mrnf.gouv.qc.ca/documents/forest/users-guide-lidar.pdf
Lidar data acquisition status PDF https://mrnf.gouv.qc.ca/documents/forets/inventaire/Acquisition_produits_derives_LiDAR.pdf
Provincial Lidar Sensor Data Acquisition Project PDF https://mrnf.gouv.qc.ca/documents/forets/inventaire/Analyse_retombees_LiDAR-Finale.pdf
Guide for using lidar-derived products PDF https://mrnf.gouv.qc.ca/documents/forets/inventaire/guide-interpretation-lidar.pdf
FugroViewer Software User Guide - LiDAR Point Cloud Visualization PDF https://mrnf.gouv.qc.ca/documents/forets/inventaire/Guide_utilisation_FugroViewer.pdf
Lidar user guide for identifying surface deposits and loan banks PDF https://mrnf.gouv.qc.ca/documents/forets/inventaire/Guide_utilisation_lidar_depots.pdf
How to use the web service PDF https://mrnf.gouv.qc.ca/documents/forets/inventaire/Procedure_service_Web.pdf
Data download guide PDF https://mrnf.gouv.qc.ca/documents/forets/inventaire/Telechargement_rapide.pdf
Original metadata (https://www.donneesquebec.ca) HTML https://www.donneesquebec.ca/recherche/fr/dataset/5e5d2750-d129-4952-b9fc-f824c5e480b4
🌲 Open forest HTML https://www.foretouverte.gouv.qc.ca/?pos=@-73.21247,47.4168,10z&ctx=_default&urls=https://geoegl.msp.gouv.qc.ca/apis/ws/mffpecofor.fcgi&layers=0,[lidar_mnt]n,0t,1v,6z;0,[courbes_niveau_10m]n,0t,1v,5z
Video capsule on the basic derivatives of lidar HTML https://youtu.be/M4Ho26PsVo8

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