Can P3-DM be used for reproducing large areas (e.g. >100,000 km2)?
Key-informants’ knowledge can be successfully collated on relief models made at 1:20,000 or better at larger scales. It follows that the geographical coverage of a model is influenced by its final size. Reducing the scale, to, say 1:50,000, in order to cover larger areas limits accuracy and the ability of informants to internalize the model and to transpose their knowledge. A solution is to produce a series of models – to be made and displayed at different locations – each one covering a portion of the desired area. Obviously this process would require more time and added financial and human resources.
