3D Modeling, DEM, DTM

Aloft Geographic’s LiDAR systems and experienced drone pilots generate highly accurate and dense LiDAR point cloud datasets for all your company’s needs. With data collection rate capabilities of up to 300k (points/second) per return, our lasers can penetrate through surface-terrain features, such as lush vegetation, to get a true bare-Earth reflection point. After data collection, or using your pre-existing archived data, the information can be processed into an array of services including 3D modeling and visualization, DEM (Digital Elevation Model), or DTM (Digital Terrain Model).

Using 3D representation of terrain elevations is critical in areas such as land-use planning, soil science, hydrology, infrastructure project management. DEMs are of particular importance, for contouring topographic/relief maps and creating raster grids, due to its use of variably spaced LiDAR ground points. DTMs are more complicated DEMs where break lines are added to the terrain data. Doing so improves accuracy by defining areas where the LiDAR data alone couldn’t effectively delineate the terrain and makes it more applicable to GIS software. Selecting which of these models is best suited for your company can be a daunting task, that’s why we are here to help. Working closely with you, Aloft will advise your company on a project-by-project basis to provide you with optimized 3D or elevation models and the most efficient modeling techniques.