Datasets

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...

You can use the feedback API to retrieve feedback data of the City of Espoo in a uniform format. You can search the API based on, for example, the date, location and keywords. The API data is updated once a day. The...

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...
  Municipalities

  WFS

  WMS

The data includes current built green roofs, spontaneously created green roofs, and potential green roofs in the Helsinki metropolitan area. The material was produced by first identifying the buildings with more than...

The points where flying squirrels could fly over the main roads of Espoo have been investigated with the help of a point cloud. The end result is a set of lines in raster format (TIF, bitmap). The plane coordinate...

Suitable areas for solar panels in the Helsinki metropolitan area. The data indicates potential locations for solar panels. The data presents suitable areas for solar panels. A roof section is suitable for solar...

In the dataset, the land area is classified into impermeable surfaces such as streets and buildings, vegetation of different heights, open rock, and bare ground. It is used for example in stormwater management,...

Upward direct or reflected lighting (nW/cm2/sr) at night in the Helsinki metropolitan area. The images were taken in May 2014. The data was completed in the Decumanus project and it was produced by Eurosense, a...

The data contains the photovoltaic production potential calculated per building, provided that the entire area suitable for solar panels is covered with solar panels. When calculating the annual electricity production...

Monthly and annual averages of air pollutants in the Helsinki metropolitan area, concentrations comparable to standards, maximum hourly values and data on the temporal representativeness of monitoring.

The material contains the air quality indices of HSY’s air quality monitoring sites on an hourly basis. The air quality index divides air quality into five different classes, from good to very poor. The index classes...

A household mixed waste composition study in the Helsinki metropolitan area is carried out every three years. The results are presented in averages and by property group as well %-share and kg/property/resident. The...

This dataset contains emissions data of the Helsinki metropolitan area's district heating by production method (by power plant and heating plant) and by sector (households, services and public sector, industry) in...

The material contains information on greenhouse gas emissions from traffic in the Helsinki metropolitan area by mode of transport (passenger cars, vans, buses, trucks, motorcycles, ships and boats, and rail transport)...

The dataset contains information on energy consumption in the Helsinki metropolitan area and separately in the cities of the Helsinki metropolitan area by sector (district heating, oil heating, electric heating,...

The data contains information on usage-based greenhouse gas emissions in the Helsinki metropolitan area and separately in the cities of the Helsinki metropolitan area by sector (district heating, oil heating, electric...

Responses to the customer survey conducted annually by HSY, question 11: "Which of the following types of waste do you sort yourself and how regularly?", years 2007-2017. The survey examines the behaviour of the...