Digital terrain elevation model – elevation grid

The digital terrain elevation model (DGM) describes the earth’s surface (natural soil, without vegetation) in the form of dots arranged in a regular grid and georeferenced in position and height. Additional terrain structures such as fracture lines, shape lines and distinctive individual points complement the regular elevation grid and provide detailed information on Austria’s topography.
From the digital terrain height model, a grid with a selectable grid width is interpolated. This elevation grid is used to calculate orthophotos and for various forms of terrain representation.