Digital Elevation Models

Digital Elevation Models (DEMs) are computer-generated representations of the Earth's surface topography. They show the elevation or height data of land features, allowing us to visualize terrain in 3D. DEMs are created using satellite or aerial data, which are processed to generate a detailed grid or map of elevations. They are used in various fields such as geography, urban planning, environmental management, and engineering to analyze slopes, watersheds, and landscape features. Essentially, DEMs help us understand the shape of the land in a precise, digital format for analysis and decision-making.