Since 2020, aggregated from related topics
A digital terrain model (DTM) is a representation of the surface of the Earth that is created using digital elevation data. This data is typically collected using remote sensing technologies such as LiDAR or satellite imagery. DTMs are used in various applications such as land planning, geographic information systems (GIS), and environmental modeling. They provide valuable information about the topography, elevation, and slope of the terrain, allowing for accurate spatial analysis and visualization. DTMs are often used in conjunction with other spatial data to support decision-making processes in fields such as urban planning, natural resource management, and infrastructure development.