What is height data?
Height data is a digital file that depicts the height of the terrain and/or features on the terrain (DTM and DSM). It is in it simplest form a grid of points at a set spacing (5m for example), each with the height of the terrain or feature attached. This type of data allows the user to get a feel for the ‘lie of the land’. Only Professional users should use height data, as it is information rather than an image or a picture.
