GeoTerraImage provides total data solutions to the telecommunication market.  This includes vector, height (DEM’s) and clutter data from 5m to 40m data sets.  A large and growing archive of off-the-shelf digital data exists for many of the major African cities, as well as 40m country coverage for all African countries. Our telecommunication clients include some of the world’s major telecommunication role players.

Vector data
The vector data layers consist of transportation networks (which include streets, secondary roads, main roads, highways and railways), rivers, water features (dams, lakes, etc) and coastlines. All vector data is captured from digital topographical maps, aerial photography and satellite images.

Height data
Height data, or digital elevation models (DEM’s) are created from either the extraction of contours from scanned topographical maps, or from stereo pair satellite images. Whichever method is used rigorous quality assurance steps ensure that the resulting DEM is of the highest possible quality.

Clutter data
Clutter data, or the mapping of features (natural or man-made) that have an impact on radio wave propagation, is generated from a variety of image sources, including Landsat, SPOT, ASTER, digital aerial imagery and traditional aerial photography. The number of classes ranges from 6 for 100m data sets to 32 for 5m data sets.

Data formats
Data is provided in all of the standard telecommunication industry formats.