The City of Lahti’s orthopaedic image data from 2011.
Ortho aerial image is an aerial image taken perpendicularly from an aircraft, from which any distortions caused by the camera’s image projection and terrain variations have been removed.
The resolution of the material is 15 cm.
The coordinate system of the data is the ETRS-GK26 coordinate system. The new ortho-air image material is ordered every 2-3 years.
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