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...

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 material describes the heat loss from the roofs of Helsinki. Thermal radiation detected on the roofs of buildings is presented in 30 cm pixels. The roofs of Helsinki were photographed using a thermographic camera...

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,...