![]() The digital terrain model itself consists of a matrix of numbers, but DEM data can be presented in visual form and used on topographic maps as horizontals, or displayed as colors (for example, using green for the lowest altitudes, shading to red, for the highest altitudes). Three main types of elevation models are used for various purposes:ĭigital Elevation Models (DEM) – this is a three-dimensional representation of the terrain, represented as an array of points with a certain absolute height, linked to a common vertical datum, which filters out and excludes all ground objects, both built (power lines, buildings, and towers) and natural (trees and other types of vegetation).įirst of all, Digital Elevation Models are used in digital cartography and geographic information systems and are the most common basis for representing terrain. ![]() GEO Innoter offers a wide range of digital terrain data and cooperates with many suppliers of Remote Sensing materials to provide consumers with digital terrain models of various types with the required accuracy for any territory of the Earth.
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