Orthophotograph Mosaics Of Estrie Region At 20cm Resolution

Orthophotograph mosaics assembled from spring 2023 imagery, corrected for terrain relief. The data covers all municipalities and regional county municipalities in Québec's Estrie administrative region. Images are provided as 5 km x 5 km GeoTIFF tiles in natural color.

Use Cases

• Generate land cover classification maps using the 20 cm resolution natural color imagery.
• Conduct change detection analysis by comparing these spring 2023 orthophotographs with imagery from other years.
• Extract geographic features for municipal planning across the Estrie region's territory.
• Use the 5 km x 5 km GeoTIFF tiles for large-area mosaic assembly and spatial analysis.

Strengths

• High spatial resolution of 20 centimeters per pixel.
• Geographic coverage includes all municipalities and regional county municipalities in the Estrie region.
• Imagery is geometrically corrected as orthophotographs, accounting for terrain relief.
• Data is provided under an open Creative Commons 4.0 license for free download.

Limitations

• Single temporal snapshot from spring 2023 limits longitudinal or seasonal analysis.
• Specific file sizes and total data volume are unknown, which may affect download and storage planning.

Provenance

Source

Government and Municipalities of Québec.

Collection Method

Assembly of orthophotographs produced through regional partnerships.

Time Range

Spring 2023.

Freshness

Data represents spring 2023 conditions; metadata was last updated in March 2026.

Geography

Estrie administrative region, Québec, Canada.