Information about how the landscape looked historically is an important source of knowledge for, among other things, nature and cultural environment conservation, community planning and for the agriculture and forestry industry. Metria is now releasing map services with nationwide raster mosaics of historical orthophotos and economic maps.
Economic map - information from 1935-1978
In the 1930s, new aerial photography technology made it possible to map large areas at low cost. For the first time, it was possible to produce a single document containing both real estate and geographic information with a high degree of positional accuracy and detail. Produced between 1935 and 1978, the economic map is a unique contemporary document
The economic map contains properties, residential buildings, plots and gardens, arable land, drainage, farm roads, ancient monuments and place names. Today, the map, with all the collected information from this era, is an important source of knowledge for a variety of uses such as community planning, agriculture and forestry, and for nature and cultural heritage conservation.
Historical orthophotos - information from 1950-1970
Orthophotos are geometrically corrected aerial photographs that have been stitched together to create a true-to-scale representation of the land. Historical orthophotos are produced from older scanned aerial images from 1950-1970 and have a resolution of 0.5 m and a positional accuracy of about 2 meters.
Historical orthophotos can be used to monitor changes in vegetation and buildings, for example for the restoration of wetlands, the location of old landfills of hazardous materials and other potential and now invisible environmental problems.
Map services with nationwide mosaics
Metria has compiled nationwide raster mosaics of both historical orthophotos and economic maps. The raster mosaics are available as map services that are easily integrated into your systems. This means that you can easily access the information and visualize it together with your business data.
Historical data is available to our users in the products: Metria Maps, Forest Analysis and GeoVis.
Based on open data
The map services are based on open data. They provide a number of map products and other geographical information as open geodata. Find out more here.