GEOGRAPHIC IDENTIFIERS AS A BASIS FOR INTEGRATION OF GEOSPATIAL DATA

The article examines the subject, idea, role and meaning of geographic identifiers to ensure the integration of geospatial data in seamless topographic databases and national spatial data infrastructure in accordance with the national standard DSTU ISO 19112: 2017 (ISO 19112: 2003, IDT) Geographic information. Spatial referencing by geographic identifiers. The main direction of development of topographic and geodetic activity in Ukraine is the development of the national spatial data infrastructure based on the principles of geoinformation approach. The national spatial data infrastructure is seen as a system of integration of geospatial data of different origins from different sources, and most importantly from different areas of activity. The system of integration of heterogeneous data acquires special value at connection of a set of basic data with the thematic data which provide an array of attributive information from various kinds of activity. It is through geographic identifiers that geospatial coordinate descriptions of features are linked to an array of attribute data that does not have a direct positioning. Geographic identifiers can be the following: codifier of administrative-territorial units and territories of territorial communities, cadastral number of the land plot, address, geographic name, etc. Therefore, the aim of the article is to study the requirements for the use of geographic identifiers for the integration of sets of basic and thematic geospatial data of the national geospatial data infrastructure in accordance with DSTU ISO 19112:2017 (ISO 19112:2003, IDT).