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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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 collected i.a. for updating elevation models, creating 3D geometries of buildings, mapping flood risks, and collecting information about forest resources. The terms of use must be approved to use laser scanning data.
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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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Palvelu tarjoaa tietoja muun muassa liikenneverkoista, rakennuksista ja rakenteista, hallintorajoista, nimistöstä, maankäytöstä, vesistöistä ja korkeussuhteista. Aineistolähteenä on Maanmittauslaitoksen Maastotietokanta, jonka kohteita pidetään jatkuvasti ajan tasalla. 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
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The Topographic database is a dataset depicting the terrain of all of Finland. The key objects in the Topographic database are the road network, buildings and constructions, administrative borders, geographic names, land use, waterways and elevation. Aerial photographs, scanning data and data provided by other data providers are utilised in updating the Topographic database. The updating is done in close cooperation with the municipalities. Field checks in the terrain are also needed to some extent, mostly as regards the classification of features. The topographic database is used in the production of other map products and in various optimisation tasks. The product belongs to the open data of the National Land Survey of Finland.
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Hillshade (elevation model) is a raster dataset visualising the elevation of the terrain. There are five product versions available in which the pixel sizes are 2, 8, 32, 64, 128 and 512 metres. Pixel size 2 m has been produced of the dataset Elevation model 2 m. The other sizes have been produced of the dataset Elevation model 10 m. The material does not contain elevation values; it is a greyscale image that visualises the direction and steepness of hills. 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.
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The Background map is a dataset product series in raster format that depicts the whole of Finland and that is meant for web use as a background material for thematic data. Its key objects are road names, roads and railways, buildings and constructions, administrative borders, geographical names, waterways, land use and addresses of buildings (from Ryhti/Finnish Environment Institute). The product belongs to the open data of the National Land Survey of Finland.
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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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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.