Ground control is used when required to provide the highest accuracy levels.
This is a high resolution, metrically accurate product suitable for GIS use as a map base or as source material for feature extraction. Wherever available, archive imagery is recommended for faster delivery. Processing Orthorectified with DEM and GCP as required to achieve stated accuracy. 3.2 to 3.6 m Ground Sample Distance resampled by cubic convolution to 4.0 m map increment. Projection Choice of UTM, State Plane, Albers Conic Equal Area, Lambert Conformal Conic.