Are derived data layers needed?
When choosing a contractor, it is important to examine their overall experience and reputation. The contractor should have experience in producing the type of data required for a particular project. In addition, a vendor familiar with the terrain is more likely to be able to handle issues specific to local conditions when processing the data. Another point to consider is the physical location of the vendor. The distance from the project area to the vendor’s base will impact the mobilization and demobilization costs. Some of the points to consider include determining the appropriate point density, generating additional information layers, choosing apppropriate accuracy-assessment methods, and defining the deliverable medium.Several important considerations for data acquisition and requirements are listed in atable. Point density. For forest stand-level data, one point per square meter will suffice, but when information about individual trees is required, four to five data points per squ
