Specifitations, Regulatory Documents and Nomenclature
A digital terrain model is a collection of points where, in addition to the plane co-ordinates (X, Y), the elevation above sea level (Z) is also knownThe model is derived using specialised stereo tools, using aerial photographic images
A portion of the data is obtained through laser scanning. The points cover an area in the form of a regular or irregular network
LGIA 28th December, 2009, regulations No. 8 "Basic requirements for digital terrain model (DTM)" (only in Latvian):








Changed: 2015.03.30. 17:03