Our
NEXTMap digital surface model (DSM) is a first-reflective-surface model that contains elevations of natural terrain features in addition to vegetation and cultural features such as buildings. It provides seamless, wide-area, and current terrain data so you can perform more accurate cross-border geospatial analyses in applications that require above-ground features, such as:
- Line-of-sight
- Viewshed
- Telecommunications and forestry
Our
NEXTMap surface model is available in two versions:
- Hydro-enforced digital surface model – structures over water bodies (such as bridges and culverts) are removed, water surfaces are flat, and watercourses flow downstream – making them ideal for water resource and floodplain management applications.
- Ortho-ready digital surface model – bridge decks and culverts are maintained in the elevation models, and major roads are smooth to accommodate the use of the surface models in orthorectification of optical images.
Our world-class enterprise workflow allows us to integrate elevation datasets from around the world to provide the best-of-breed digital surface models with a range of accuracies starting at 1 vertical meter LE90% in unobstructed terrain of low slopes.