DEMTools from TerraSim^® is a digital elevation model (DEM) management tool enabling rapid and accurate fusion of multiple DEMs from a variety of sources that cover an area of interest, producing a single composite DEM. DEMTools gives you complete control over DEM extent, post spacing, and the coordinate system of the composite DEM. This product is available as an extension to all versions of the ESRI ArcGIS Desktop (ArcView^®, ArcEditor^®, ArcInfo^® ) family.

Building upon the import and export capabilities found in ESRI's ArcGIS Desktop suite, DEMTools greatly simplifies the process of producing a single DEM for your project area. For example, DEMTools can be used to embed high-resolution LIDAR or photogrammetric collections into a single composite DEM file, which includes all available DEM sources, regardless of the original collection of data, map projections, or post spacings.

Together, these capabilities can cover a wide range of DEM construction problem situations, and allow users to rapidly correct, edit, and refine multiple source DEMs into an improved single DEM to more accurately support further analysis.