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Saudi Arabia National Spatial Reference System (SANSRS) is one of the programs within the National Geodetic Infrastructure at the General Authority for Survey and Geospatial Information. It is a fixed reference system that defines Cartesian coordinates, longitude, latitude, elevation, scale, gravity, and orientation throughout the Kingdom of Saudi Arabia. 1 2 The National Spatial Reference System consists of the following geodetic components: Geodetic Reference Frame (KSA-GRF), Vertical Referen...