OSNI creates orthophotographs of Northern Ireland from high quality aerial images with distortions removed. Orthophotographs give a scale-accurate bird's eye view of the landscape from which accurate measurements can be taken.
Orthophotography is supplied either as pre-determined tiles or as a bespoke clip out centred on a site-specific area.
How orthophotography is obtained
Orthophotograph tile layout follows OSNI 1:10,000 scale mapping layout. Complete coverage of Northern Ireland orthophotography is flown in three year cycles.