Section 7 National Countryside Monitoring Scheme
This project (Mackey, Shewry et al. 1998) assessed land cover change in Scotland between 1947, 1973 and 1988 using aerial photography. A stratified random sample of 467 sample squares (7.5% of Scotland’s land area) was used, the size of which was determined by the need to detect national changes of 10% or more in major features of interest, with 95% confidence. Stratification was done by the regional classification of Landsat multi-spectral scanner images. Again, because the data pre-date the 1990s, they were not used in the current project, but they are available to be used in future work.