Zeock
TS Member
- Favourite Ride
- Journey to the Center of the Earth
Copied from my search engine as I also didn't know:Out of interest, what does AOD mean on that image?
Above Ordnance Datum
Definition – Absolute level. Absolute levels have been given by reference to a national datum and are quoted as a level Above Ordnance Datum (AOD). The use of a common national datum means that the local ground level (the relative level) does not affect the AOD level that a constraint may be set at.