Datasets
In order to identify the individual tree trunks, we have first produced a canopy covering material. It was obtained using the NDVI raster (from regional false color orthophoto 2013) and building polygons. Objects with...
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...
Helsinki Region Environmental Services (HSY) collects hazardous waste in Espoo, Helsinki, Kirkkonummi and Vantaa. The material includes hazardous waste collection points. Hazardous waste from households is accepted at...
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...
Urban weather model results of the URCLIM project. Data includes temperature at 2m high, moderate and strong heat stress during summer months and road weather for traffic and pedestrians during winter. Average daily...
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 Sortti collection vehicles (earlier: touring collection vehicles) of the Helsinki Region Environmental Services Authority (HSY) tour every year in Espoo, Kauniainen, Helsinki, Vantaa and Kirkkonummi. The data...
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 data contains information on the extent of HSY’s stormwater sewerage area at property level. The stormwater sewerage area is based on Section 17 a of the Water Services Act. A property located in the stormwater...
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 Urban tree database of Helsinki (Puuatlas) is a system of the City of Helsinki’s Urban Environment Division that contains information about the street and park tree assets in public areas (streets, squares,...
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 data includes the results of the noise survey (in Finnish) completed in Helsinki in the summer of 2017 and in 2022 (in Finnish). The noise mapping in accordance with the EU Environmental Noise Directive was...
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...