Abstract
The Alberta Photogrammetric Control System (APCS) offers a wide range of applications including map compilation, quantity determination, map revision, land surveying and land information services. Accuracies of derived coordinates using an analytical stereoplotter are in the order of 0.11 to 0.21 m for horizontal and 0.10 to 0.17 m for vertical in urban areas. In rural areas, accuracies are 2.05 m for horizontal and 1.05 m for vertical. These accuracies are well within the standard accuracies of map products compiled using APCS data. The status of the system is presented.
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