DEMs & DTMs

A digital elevation model (DEM) represents the elevation of the Earth’s surface, including features such as vegetation, buildings, bridges, etc. A digital terrain model (DTM)n Acquired from airborne laser scanning (ALS), provides a bare earth representation of terrain or surface topography. Both data sets can be highly useful for visualizing our planet for scientific and commercial landscape study.

ASI provides high quality DEMs to support applications such as:

  • 3D Modeling
  • volumes
  • corridor mapping
  • powerline as-built surveys

ASI also creates highly detailed DTMs for:

  • Orthorectification
  • Flood plain mapping
  • Contour generation

For more information on ASIs’ DEM or DTM products give us a call at 1(319)277-0436 or email us

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