Digital Height Models

  • DHMs include impressions of buildings, elevated highways and bridges
  • Derived from WorldView-1, WorldView-2, and GeoEye-1 stereo imagery
  • Created from photogrammetrically captured breaklines, mass points, building and transportation feature geometry
  • Web-based delivery

Technical Specifications: DHM

Vertical Accuracy

25-30cm observed relative accuracy depending on ground control. 1m absolute accuracy LE90

Post-Spacing

1 meter

Horizontal Accuracy

4.1 meters CE90

File Type

GeoTIFF format

Projection

Customer defined

Applications

Asset placement and design
  • RF Planning
  • Distribution lines
  • Transportation planning
Land management
  • Urban planning
Visualization and simulation
  • Aerospace
  • Defense
  • Line of sight analysis