The technical base map
The technical base map is a technical-topographic 3D map with high resolution and accuracy.
The base map covers all the Greenlandic towns and settlements, and includes roads, paths, buildings, technical installations, city inventories, streams, lakes, land use, building use, ports, airports, place names, building numbers and house numbers. The base map also contains height data, such as digital terrain model and contour lines.
The base map is established on the basis of aerial photography recorded vertically over the terrain from either aircraft or drone. The base map is updated by RTK_GNNS (GPS) on the terrain or by measurement in aerial images (photogrammetry).
The many different aerial photos are put together into a geometrically composed photo mosaic called an orthophoto. The orthophoto is absolute measurable and can be combined with the base maps or other geo rectified maps.
The base map can be used, e.g. for land-use planning, land administration, mineral exploration, nature protection and conservation, design and construction of plants and infrastructure, transport and logistics, emergency services as well as outdoor life and tourism. Data are also used for research regarding e.g. nature, environment, climate, culture and history.
The base map consists of:
- Technical topographic vector map including place names, building numbers and utilities.
- Terrain model and contour lines.
- Cartographic raster map in two derived versions in the scale 1: 2,750 and 1: 5,000.
You can download the base map on Asiaq’s FTP server on this link: Asiaqs FTP server
You can also use the free Filezilla program and use the following access information:
- Address / host: ftp.asiaq.gl
- Username: Asiaqs_grundkort
- Password: * no password * (do not enter anything in the field)
If you just want to see the base map and orthophoto in your browser, use this link: Map service
If you find defects in our products, please let us know so that we can correct it. You can contact us at the contact details below at the bottom of this page.