National Aerial Photography and Imagery Programme
NGI has the largest and most extensive archive of aerial photography and imagery dating back to 1926 with numerous national coverages. The imagery has evolved significantly over time, and, since 2008, all imagery are acquired with high resolution digital sensors in both colour (RGB) and CIR (colour infra-red).
Geodesy and GPS
The Hartebeesthoek94 Datum is the official geodetic datum for South Africa. The datum was implemented in 1999 when it replaced the Cape Datum. Gauss Conform is the official Coordinate System used in South Africa.
Geodetic and Control Survey Services
This consists of thousands of highly visible trigonometrical beacons, easily accessible town survey marks and benchmarks. TrigNet, the world-class network of permanent continuously operating GNSS base stations distributed throughout South Africa was established in 1998.
Maps and Geo-spatial Information
This includes the popular 1:10 000 orthophoto and 1:50 000 topographic, numerous other smaller scale, provincial and national maps. Orthorectified imagery, elevation data (including DEMS), vector topographic data as well as raster maps are available digitally.
Professional and Advisory Services
NGI provides professional support to various land reform programs and land claims offices around the country viz: actual land survey; verifying boundaries and borders; investigating historical documents; aerial photo interpretation; land use and land cover; and resolving spatial queries.
NGI manages experiential training for Technical Surveyors and Cartography students within the...
South African Spatial Data Infrastructure
Click the image to search the NSIF website or click read more.
NGI, though the NSIF, is responsible for the implementation of South African Spatial Data Infrastructure (SASDI), supporting the Committee on Spatial Information, establishing an electronic metadata catalogue, determination of standards and prescriptions with regard to the facilitation and sharing of spatial information.
