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Four raster layers document forest disturbances from 1950 to 1984 across Canada at 30-meter resolution. The dataset, updated by Natural Resources Canada in 2026, identifies disturbance types (fire, harvest, insect) and years using a dual detection approach combining automated classification and manual photo-interpretation. It integrates sources like the National Burn Area Composite to improve fire year attribution.
License is OGL-CA-2.0. The 'unknown' year value (999) in the disturbance year raster should be converted to 1955 by the user. Data is in GeoTIFF format.