tukikartta
Tukikartta is a term used in Finnish cartography and GIS to describe a base map or reference map that provides geographic context for additional data layers. It serves as a stable foundation on which thematic information—such as land use, demographics, or infrastructure—can be overlaid and analyzed. The concept is closely related to, and in many contexts overlaps with, the base map (peruskartta) used in spatial planning.
A tukikartta typically includes general geographic features such as topography, administrative boundaries, transportation networks, hydrography, and
Production and custodianship of tukikartta are usually the responsibility of national, regional, or local mapping authorities,
See also: base map, peruskartta, geographic information system, GIS data standards, INSPIRE, Maanmittauslaitos.