Digital Terrain Models (DTM) is a topographic model of the Earth that can be manipulated by computer programs. DTMs are used especially in civil engineering, hydrology, hydraulics, surveying, geography, and remote sensing. Terrain analysis employs elevation data, usually in conjunction with other geospatial information, to describe the landscape, for basic visualization, modeling, or to support decision making. While terrain analysis can create tables, scatterplots, or histograms, the primary product will almost always be a map that is prepared in the format of DEM or TIN.

I am an experienced civil engineer with a master's degree in water engineering. And also, I'm good at professional software, including AutoCAD, Civil 3D, ArcGIS, etc. I can prepare the DTM of your land site in the format of DEM(Digital Elevation Model) or TIN(Triangulated Irregular Network) using GIS or Civil 3D with the best quality and in the fastest time.