The Topographic database in vector format can be used as source data for various map products. The Topographic database is suitable for use as a base map for planning land use and for performing various optimisation tasks and analyses. The Topographic database is also suitable for use for instance in various applications for positioning, route search, maintenance and data collection that utilise GPS positioning.

The road network and geographic names are updated continuously, the administrative borders and the buildings yearly. The yearly updating data for the administrative borders are obtained from the dataset Municipal Division.

Other features are updated according to aerial photos one map sheet at a time in connection with a fixed-term updating process every 5–10 years. The updating status can be seen on the map: https://tilannekartta.maanmittauslaitos.fi/ipa

The updating plan according to aerial photos can be seen on https://hkp.maanmittauslaitos.fi/hkp/published/fi/de4d45c1-1ec0-427d-b9dc-11365562d962

In the Topographic database search service (OGC API Features), features are updated every day according to the above-mentioned updating rhythms. The updated features are shown in the service with a delay of two days.

In the NLS MapSite Download geospatial data -section, new files (shape, mif and MTK-GML) are created of the changed map sheets daily. The GeoPackage file covering the entire country is updated monthly. The free search area and selection of municipality come via the Topographic database search service. Features that come via these area selections are updated as above.

The copyright and the other immaterial rights on the Topographic Database are owned by the National Land Survey of Finland. The product is maintained by using data from the municipalities. The Finnish Environment Institute and the Finnish Transport Infrastructure Agency have the copyright on the route information used in creating the Topographic Database. In addition, the Finnish Environment Institute has the copyright on the depth contour data used in Topographic Database. The data material is not confidential. Public access to the material is not restricted by the INSPIRE Directive. Mention the name of the Licensor (the National Land Survey of Finland), the name of the dataset(s) and the time when the National Land Survey has delivered the dataset(s) (e.g.: contains data from the National Land Survey of Finland Topographic Database 06/2014).

The Topographic database is the National Land Survey's most accurate nationwide dataset depicting the terrain of all of Finland. Its positional accuracy corresponds to that of scales 1:5,000–1:10,000.

The Topographic Data Quality Model contains information about which factors form the quality of numeric topographic data and how various quality factors are measured. Moreover, the quality model gives the quality requirements for instance for the positional accuracy, updating frequency, descriptive attribute data and coverage of topographic data. No quality requirements are set for geometric and topological data.

Different features in the Topographic database have different requirements for positional accuracy, for most man-made constructions the requirement is 3 metres. The positional accuracy of the features in the Topographic database is with a 95 percent probability in accordance with the minimum requirements stated in the quality model.

The up-to-date accuracy of the Topographic databases varies depending on the feature (see Maintenance).

The accuracy of descriptive data (attribute data) varies depending on the feature. For more accurate information, see descriptions of the different themes.

The size of coverage means the share of such features that are missing from the database or that can be found in the database but not in the terrain. Different features have different requirements for coverage.

The quality model (in Finnish):

http://www.maanmittauslaitos.fi/sites/default/files/Maastotietojen_laatumalli.pdf.

All features of the Topographic database are available in GML and shp format and the Road network with addresses is available as a separate sub-element.

The entire Topographic database is provided as two GeoPackage files: 1) feature classes that describe elevation and 2) all other feature classes of the Topographic database.

The Download geospatial data section of the MapSite also includes the possibility to download GeoPackage files by municipality or based on a delimitation of your choice: https://asiointi.maanmittauslaitos.fi/karttapaikka/tiedostopalvelu/maastotietokanta

GeoPackage files have built-in example styles that work with QGIS: https://www.maanmittauslaitos.fi/geopackage/maastotietokannan-tyylitiedostojen-hyodyntaminen

A more precise description of the topographic data features (in Finnish)

https://www.maanmittauslaitos.fi/sites/maanmittauslaitos.fi/files/attachments/2023/06/Maastotietokohteet_2023_05.pdf

Topographic database object model:

https://www.maanmittauslaitos.fi/sites/maanmittauslaitos.fi/files/attachments/2019/12/maastotietokanta_kohdemalli_eng.xlsx

Theme division used in The Download geospatial data section of the MapSite: https://www.maanmittauslaitos.fi/geopackage/maastotietokannan-teemoittainen-lataaminen

GML-schema of the Topographic database (in Finnish)

http://xml.nls.fi/XML/Schema/Maastotietojarjestelma/MTK/202203/Maastotiedot.xsd

Code lists (in Finnish):

http://xml.nls.fi/XML/Schema/Maastotietojarjestelma/MTK/202203/Koodistot/

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