Topographic humidity index from LiDAR
The link: * Access the data directory* is available in the sectionDataset description sheets; Additional information. As part of the provincial LiDAR sensor data acquisition project, a topographic humidity index or Topographic Wetness Index (TWI) was produced from the digital terrain model derived from aerial LiDAR (Light Detection and Ranging). The matrix layers thus produced provide information on the potential for water accumulation on the territory as a function of the slope and accumulation at a given pixel.This third party metadata element was translated using an automated translation tool (Amazon Translate).
- Publisher
- Government and Municipalities of Québec
- Resources
- 13
- Catalogue metadata updated
- 2026-09-09
Data overview
- Formats
- CSV, HTML, LYR, OTHER, PDF, SHP
- File languages
- French
- Available actions
- 1 loadable resources
Official sources and licences
Resources
- Download links (French, CSV) CSV
- Availability of potential flow bed products and topographic humidity index from LiDAR (French, PDF) PDF
- Download links (French, SHP) SHP
- LiDAR Derivative Products User Guide (French, PDF) PDF
- 🌲 Open forest (French, HTML) HTML
- Original metadata (https://www.donneesquebec.ca) (French, HTML) HTML
- Procedures for using a web service (French, PDF) PDF
- READ ME (French, PDF) PDF
- Symbology (French, OTHER) OTHER
- Symbology (French, LYR) LYR
- User's Guide: Products derived from LiDAR Data (French, PDF) PDF
- Video clip on the topographic humidity index from LiDAR (French, HTML) HTML
- Web mapping service (French, HTML) HTML