1.0m grid

GeoEye-1 1m Resolution Shaded DSM - ChileGeoEye-1 imagery and 1m DSM visualisation over Chile with 25m contoursPleiades 1m shaded DSM over IranPleiades 1m elevation visualisation

Most Very High Resolution satellites provide satellite stereo imagery that enables the generation of 1m DEM products. These datasets improve the accuracy of processes like image orthorectification. They can also be used within Project Planning/Concept applications, Hydrological Modelling studies and 3D visualisation.

Stereo Imagery is available from the following VHR Satellites:

  • WorldView-1 (panchromatic only) & WorldView-2 and 3,
  • GeoEye-1, and
  • Pléiades
 DEM Grid Resolution 1m
 Territory Global 
 DSM/DTM
DSM or DTM 
 Suitable Area Size <2,500 sq kms 
 Ground Control Required No* 
 Imagery Supplied Yes 
 Relative Vertical Accuracy Range Up to 4m** 
 Horizontal Accuracy Range (CE90) 0.5m-5m 
 Availability Typically new capture required, but some archive may exist
 Typical Applications
  • Project planning and concept studies
  • Hydrological modeling
* Client supplied ground control will improve vertical & horizontal accuracy.
**Geoimage regularly find relative vertical accuracies significantly better than those listed.

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