The article proposes the research of some aspects of the edge matching method of digital topographic maps in the scale of 1:50 000 for creation single seamless Topographic Database of the Main State Topographic Map in Ukraine within the framework of the Ukrainian-Norwegian project. The single seamless Topographic Database of the Main State Topographic Map (hereinafter – Topographic Database) is being created for the first time in Ukraine for the creation and development of the National Spatial Data Infrastructure which requires relevant, reliable and high-quality Core Reference Datasets which based on digital topographic maps. This research considers the edge matching of the updated digital topographic maps before the uploading into Topographic Database. Compliance with the proposed requirements for the edge matching of the updated digital topographic maps will raise the quality of the edge matched updated digital topographic maps in the scale of 1:50 000 for creation the seamless Topographic Database of the Main State Topographic Map.
During researching of the edge matching method of the updated digital topographic maps in the scale 1:50 000 was defined that the transformation of coordinates from one zone of the Gauss-Krueger projection to another executes with insufficient accuracy for the usage of analytical methods in ArcGIS.
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