Height model for urban areas 

DDH®by is height models containing data for the urban areas of approximately 73 Danish municipalities and is produced on the basis of laser scanning from aircraft.
 
The scanning makes it possible to produce models with a high degree of accuracy and details: the mean error of the height is only 15 cm and the dense grid (1 or 2 m grid) provides a detailed description of the height conditions.

It is possible to generate contour maps on the basis of DDH®by with for instance a contour distance of 0.5 m.

DDH®by contains DSM (Digital Surface Model), DTM (Digital Terrain Model) and DEM (Digital Elevation Model).

DDH®by now comprises data for urban areas in approximately 73 municipalities.