Digital Surface Models (DSMs)

Digital surface models (DSMs) are topographic maps of the earth's surface that provide you with a geometrically correct reference frame over which other data layers can be draped. In addition to natural terrain features, the DSM data includes buildings, vegetation, and roads.

DSMs are currently used by existing customers to create 3D fly-throughs, support location-based systems, augment simulated environments, and conduct viewshed and line-of-site analyses. They can also be used as a comparatively inexpensive means to ensure that cartographic products such as topographic line maps, or even road maps, have a much higher degree of accuracy than would otherwise be possible.

Using IFSAR technology, DSM data is created by radar signals bouncing off the first surface they strike. The data is collected and processed for wide-area geographies and made available for immediate purchase through the NEXTMap TerrainOnDemand data store, directly through our sales team, or through partners around the globe.