terrain models

Terrain models are digital or physical representations of the Earth's surface, showing its features such as hills, valleys, and slopes. They are created using data from surveys, satellite images, or LiDAR scans. These models help us visualize, analyze, and plan for land use, construction, forestry, and environmental management. In digital form, they often appear as 3D maps or contours that accurately depict the elevation and shape of the terrain, providing valuable insights for engineering, urban planning, and geographic studies.