Digital Elevation Models (DEMs)

Providing geospatial professionals worldwide with uniformly accurate, wide-area 3D digital elevation data

Collected using our proprietary airborne interferometric synthetic aperture radar (IFSAR), Intermap Technologies^®' DEMs feature high-resolution 3D images and corresponding data.  Accurate to 1 vertical meter RMSE (collected at 5-meter post spacings), the DEMS provide accurate and affordable models for a variety of geospatial applications.

Digital terrain model (DTM) - a bare-earth model in which cultural features such as buildings, roads, and vegetation canopy are digitally removed. Intermap has two versions of DTMs available — to learn more, see "DTM v1.0 & DTM v1.5" information. 


Digital surface model (DSM) - a first-reflective-surface model that contains cultural features such as buildings, roads, vegetation, and natural terrain features. The key benefit of the DSM is that it provides a geometrically correct base map.

Intermap's^® DEMs are included in our NEXTMap^® countrywide mapping program that includes all of Western Europe, the contiguous United States and Hawaii, and much of Southeast Asia. 

Learn More

Read about our digital elevation models (PDF)

Listen to a free recording from our Introduction to Digital Elevation Models Webinar.