Historical Aerial Photography Flight Lines and Photo Centres

The dataset contains the position of historical aerial photography photo centres and flight lines. Positions may have been captured from flight line diagrams, individual georeferenced photo frames or estimated based on available information. Flight line diagrams depict the aircraft flight paths (also known as 'runs') and the position of the centre of the photograph ('centroid') in relation to ground features. Where flight line diagrams are not available, individual photo frames may have been georeferenced to determine position. Centroid positions may also be estimated where sufficient information is available.Each photo centre and flight line may include attributes containing additional information related to the feature including capture date, camera and film specifications and scanning status.<br>