Digital terrain model – overview and draw up

Since a long time ago peoplestudiedthe Earth's terrain: geologists study itsstructure, geomorphologists study its forming process, civil engineers construct on it, architects design on it and geodetic engineers, measure and present its surface in different ways such as maps, orthoimages, perspective views, etc. The common interest of all these specialists is that the terrain surface to be represented in an accurate form. This representation can be made through the digital terrain model which offers quickness and high productivity both how the data is collected (technologies such as Laser Scanning and Stereophotogrammetry) and as well as the existing software solutions. This paper presents the digital terrain model of a stone quarry, from Arad County, regardinginformation aboutsurface texture and elevation