Paikkatietohakemisto
Maanmittauslaitos
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Laser scanning data refers to three-dimensional point-like data depicting the ground and objects on the ground. Each point is provided with x, y and z coordinate information. Laser scanning data 0.5 p has been spaced out from Laser scanning data 5 p's density of 5 p/m² to a density of 0.5 p/m². Laser scanning data 0.5 p is open data, and from 2020 onwards, it will be collected according to the national laser scanning programme (in Finnish): https://www.maanmittauslaitos.fi/laserkeilaus-ja-ilmakuvaus. For the time being, it is available only from certain parts of Finland. The product belongs to the open data of the National Land Survey of Finland. More information (in Finnish): https://www.maanmittauslaitos.fi/laserkeilausaineistot.
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Ortokuvien ja korkeusmallien kyselypalvelun (WCS) kautta voit hakea rasterimuotoisia ortokuvia ja korkeusmalleja. Palvelussa voit poimia haluttuja paloja aineistoista omalla aluerajauksellasi. Ortokuvien osalta palvelu sisältää Maanmittauslaitoksen väri-, vääräväri- ja mustavalkoisia ortokuvia eri vuosilta. Korkeusmalli on 2 m korkeusmallia, joka on tuotettu laserkeilausaineiston pohjalta. Korkeusmallia pystyy hakemaan palvelusta myös karkeammilla kuin 2m resoluutioilla. Tarjolla ovat seuraavat resoluutiot: 2 m, 4 m, 8 m, 16 m, 32 m, 64 m, 128 m, 256 m ja 512 m. Ortokuvat ovat saatavilla palvelusta GeoTIFF-formaatissa ja korkeusmalli GeoTIFF- tai ASCII Grid -formaatissa. Palvelun käyttäminen edellyttää perehtyneisyyttä paikkatietorajapintojen ohjelmalliseen hyödyntämiseen. Yksittäisten latausten tekeminen onnistuu myös selaimella. Ladatut tiedostot saat auki ja voit jatkokäsitellä paikkatieto-ohjelmalla. Toistaiseksi palvelua ei pysty käyttämään esimerkiksi QGIS -ohjelmalla. Aineistot ovat Maanmittauslaitoksen avoimen tietoaineiston Nimeä CC 4.0 -lisenssin alaisia. Palvelu tarjotaan avoimena rajapintana, jonka käyttö on maksutonta. Käyttäjä tunnistetaan API-avaimella. Lue lisää Maanmittauslaitoksen avoimen rajapinnan käyttöehdoista ja API-avaimen luomisesta ja käyttämisestä. https://www.maanmittauslaitos.fi/rajapinnat/api-avaimen-ohje https://www.maanmittauslaitos.fi/ortokuvien-ja-korkeusmallien-kyselypalvelu
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Elevation model 2 m is a model depicting the elevation of the ground surface in relation to sea level. Its grid size is 2 m x 2 m. The dataset is based on laser scanning data, the point density of which is at least 0.5 points per square metre. The product's coverage is based on nationwide laser scanning. In some parts of the outer archipelago or the eastern border, the elevation model is not available. Elevation model 2 m is produced in two quality classes: the elevation accuracy in class I is on average 0.3 metres and the elevation accuracy in class II varies between 0.3 metres and one metre. The product belongs to the open data of the National Land Survey of Finland.
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The 3D vectors for buildings are three-dimensional instances of the Building target category in the National Topographic Database (KMTK). The 3D vectors are produced with a high degree of automation from laser scanning data 5 p based on 2D vectors for buildings in KMTK. For the time being, data is available only from a few example areas, but the coverage will be extended to the whole of Finland as the laser scanning programme proceeds. The product belongs to the open data of the National Land Survey of Finland.
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Division into administrative areas (raster) is a dataset depicting the municipal Division of Finland. The dataset Municipal Division is produced in scales 1:10,000, 1:100,000, 1:250,000, 1:1,000,000 and 1:4,500,000. The data included in the dataset in scale 1:10,000 are taken from the Cadastre. Regarding other scales, municipal boundaries have been generalised to suit the scale in question. Division into administrative areas products in raster format include municipal boundaries only. The product is a part of the open data of the National Land Survey.
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Laser scanning data refers to three-dimensional point-like data depicting the ground and objects on the ground. Each point is provided with x, y and z coordinate information. Laser scanning data is available from all of Finland. The product belongs to the open data of the National Land Survey of Finland. From 2020 onwards, laser scanning data according to the laser scanning programme will be produced. The product description of the 'Laser scanning data 5 p' according to the scanning programme is available: https://www.maanmittauslaitos.fi/en/maps-and-spatial-data/expert-users/product-descriptions/laser-scanning-data-5-p. A spaced-out open dataset will be created from the new Laser scanning data 5 p: https://www.maanmittauslaitos.fi/en/maps-and-spatial-data/expert-users/product-descriptions/laser-scanning-data-05-p. The characteristics of this dataset correspond to the Laser scanning data 2008–2019 dataset.
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Paikkatietohakemisto is a national metadata discovery service.
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Elevation model 10 m depicts the elevation of the ground surface of the whole of Finland in relation to sea level. Its grid size is 10 m x 10 m and the accuracy of elevation data 1.4 metres. The product belongs to the open data of the National Land Survey of Finland.
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Control points and their coordinates and elevations define in practice the reference system for coordinates and elevations used in Finland. The NLS benchmark register contains information about nationwide control points and benchmarks. The marks are mainly horizontal and elevation control points in classes 1–3 measured by the National Land Survey of Finland. The product belongs to the open data of the National Land Survey of Finland.
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An aerial photograph is a photograph of the terrain taken from an aeroplane. The images are vertical photographs applicable to be used in mapping. The aerial photographs are reprocessed into dimensionally accurate images called orthophotos. Aerial photographs are available since the 1930s, depending on the area. Aerial photographs are available in black and white, colour and false colour. The size and accuracy of aerial photos depend on the camera, photography scale and altitude or ground sample distance (GSD). The product belongs to the open data of the National Land Survey of Finland. Aerial photographs can be ordered by pieces that cover a certain area. The latest orthophotos based on the aerial photographs can be downloaded free of charge from the File service of open data.