Digital Terrain Model

A Digital Terrain Model (DTM) is a 3D representation of the Earth's surface, created using data collected from various sources like satellite imagery, aerial surveys, or ground measurements. It shows elevation changes across a landscape, allowing us to visualize hills, valleys, and flat areas. DTMs are used in fields like urban planning, environmental management, and agriculture, helping professionals analyze terrain for construction, assess flood risks, or manage natural resources. Essentially, a DTM provides a detailed map of the ground's shape, crucial for understanding and planning in any geographical project.