Applications: Aerial

When planning an aerial data collection effort, a review of the available CompassData control points in the archive may allow for the use of existing control data, eliminating or reducing the need to send a survey crew into the field to target and collect control to support subsequent mapping operations.

The control points residing in the archive have readily viewable metadata indicating the date of collection, the positional quality, and additional supporting data including a control point sketch and photographs of the point taken during collection.

Not all points in the archive will be usable in any given photogrammetric project, but they do provide an independent check against existing data, and can provide an excellent starting point for troubleshooting any aerial project control issues, or to provide an initial starting point for image positioning or project layout.