In the soil map, the soil is mapped to a depth of about one metre. The soil map does not provide information on soil layers deeper than this. The soil mapping was carried out at a scale of 1:2 000 or 1:10 000, so the...

Various historical maps of Vantaa. For more information on the different maps, see the Descriptions of layers list. The material can be viewed on the city of Vantaa map service: You can find the levels in the map...

The dataset includes the water channels of Helsinki, i.e. rivers, streams, ditches, riverbeds and the pipelined sections of the biggest channels. The structure of the data follows the data model of the HSY...

Land cover mapping of impervious surfaces in Helsinki Metropolitan Area using AI. The pixel values represent the probability that the pixel is impervious, and they range between 0 and 254. Pixel values above 127 can...

Land cover mapping of bare land in Helsinki Metropolitan Area using AI. The pixel values represent the probability that the pixel is bare land, and they range between 0 and 254. Pixel values above 127 can be...

The prospective green and recreational network VISTRA includes the constituent parts of the Helsinki green and recreational network. These include the green fingers, the maritime blue palm, the green lines, the...

Carbon Sink Mapping of Helsinki Metropolitan Area. The data contains a report (in Finnish) and a GIS dataset. The GIS dataset shows the carbon storage in both soil and vegetation for each vegetated area.

Map level shows real-time air quality as an index of air quality in the permanent and mobile measurement stations of the Helsinki Region Environmental Services (HSY). The measurement result is updated hourly. HSY...

The Helsinki hillshading image, or shaded relief image, is a raster data that visualises elevation variations in the terrain. The dataset was produced from the 2017 “ground point” laser scanning data. The data...

The landscape culture map shows the most important cultural sites, parks, gardens and landscapes in Helsinki. The starting point was the cultural environment studies carried out in connection with the 2002 Master...

The Espoo base map, which is the same data that is also used in the up-to-date 3D city model, shows all the important elements of design and construction, such as buildings, transport routes, terrain patterns,...

FCG:n tekemän HULEVESITULVARISKIEN ALUSTAVA ARVOINTI HELSINGIN KAUPUNGISSA -raportissa (2011, päivitetty 2018) olleet geometriat purkupisteistä ja osavaluma-alueista. Läpäisemättömien pintojen pinta-ala sekä osuus...

Aerial orthoimages of the Helsinki metropolitan area from 2015 to 2023. The latest orthoimages of the Helsinki metropolitan area were acquired in June 2023. The ground sampling distance (GSD) is 5 cm/pixel. The...

Map data that shows the amount of solar radiant energy calculated on the roofs of buildings in the Helsinki metropolitan area. The solar radiant energy has been modelled on roofs in pixels of 50 cm (kWh/m2/year) with...

The dataset shows the areas where the annual limit value for nitrogen dioxide (40 µg/m3) has exceeded or has been in danger of exceeding. In 2022 it was estimated that the annual limit value of nitrogen dioxide will...

The City of Helsinki's noise report, which complies with the EU's Environmental Noise Directive (END), examines the environmental noise caused by road and rail traffic in the Helsinki area. The noise report has been...

The base map of Helsinki is a large-scale (1:500) map maintained by the Urban Environment Division’s City Survey Services and used as a basis for city planning and civil engineering. The base map serves as a map...

With the Nature Information System, you can get to know the diverse nature of Helsinki. The most important natural resources of the system are nature conservation sites, valuable flora and fauna sites, important bird...

Monitoring site data includes permanent monitoring sites, mobile monitoring sites and passive samplers, as well as the annual average concentrations (μg/m3) of nitrogen dioxide (NO2) measured at these sites in...

The weekly updated accurate water areas in color. Together with wide streams and ditches. Pier structures are visible. The recommended scale is 1:1000-1:10000. Coordinate systems: Maintained in ETRS-GK25 (EPSG:3879)...