Condition reporting and monitoring of archaeological sites: The use of large-scale vertical aerial photographs in New Zealand

Abstract

Large-scale aerial photographs (approximately 1:2000 to 1:10000 scale on the negative) have a number of virtues for condition reporting. The same site can be photographed at intervals so that rate of change can be measured. The record is objective and it gives sufficient detail to observe not only patterns but also the details of condition in such matters as past repairs, sheep tracking or the existence and state of repair of fences. In addition, photographic prints provide a ready basis for annotation. They are the primary record of condition and may highlight and focus the needs for conservation intervention. Archiving of photographs makes possible future study in the light of new research interests. Monitoring using photographs taken at regular intervals is also recommended.