Forest vegetation vigor index based on satellite images

Update: The data released by the Directorate of Forest Inventories from 2021 to 2024 (DIF) has been replaced by data produced by the Directorate of Forest Protection from 2025. The link: Access the data directory is available in the sectionDataset Description Sheets; Additional Information. In 2025, the Forest Protection Directorate of the Ministry of Natural Resources and Forests (MRNF) began producing data that indicate the strength of forest vegetation. To produce the NBR index, the SGRF uses data provided by the Landsat (NASA) and Sentinel-2 (European Space Agency) satellites combined in the integrated satellite product “Harmonized Landsat and Sentinel-2 surface reflectance data set” designed by NASA. These satellite sensors measure light at specific frequencies called spectral bands. The light visible to human eyes corresponds to the red, blue, and green spectral bands as captured by a standard camera or camera. In addition, these satellite sensors offer the advantage of measuring infrared frequencies that are invisible to the human eye, which broadens the possibilities of observing natural phenomena under different characteristics. During the passage of a satellite over…

Publisher

Government and Municipalities of Québec

Resources

6

Catalogue metadata updated

2026-09-09