The Digital Elevation Model (DEM) is primarily focused on representing terrain surfaces by measuring elevation. DEMs are raster-based representations that provide a grid of elevation values, allowing users to visualize, analyze, and manipulate the topography of the earth’s surface. This kind of model is crucial in various fields, including environmental studies, urban planning, and natural resource management, as it allows for the examination of elevation changes and landscape features.
While both Digital Terrain Models (DTMs) and Triangulated Irregular Networks (TINs) also deal with representing terrain, they do so in different ways. DTMs include more sophisticated representations that might integrate surface features and elevation, while TINs create surfaces based on triangulating irregularly spaced data points, which can be more complex compared to the straightforward elevation values that a DEM provides. The 2.5D model also conveys height information, but it does not represent volumetric data or true 3D objects; rather, it combines 2D and elevation data in a way that is often less focused than DEMs on depicting the terrain surface itself.
In essence, the Digital Elevation Model is recognized for its efficiency and effectiveness in showing elevation details specifically, which makes it the primary model for measuring and