General Authority for Survey and Geospatial Information

An interactive e-service provided by the General Authority for Survey that enables the beneficiary to view and download geospatial information and data from geodetic, topographic and marine data, and he can take advantage of the special tools available for analysis and measurement to deal with this data, and it can also be requested to benefit from it in the form of web maps (Web Services).

This service provides The Online GRF-TT tool, which is a Tool for transformation of geodetic coordinates between KSA GRFs (Geodetic Reference Frames). The coordinates could be either geographical or UTM projection coordinates. Standard Helmert parameters (translation, rotation and scale factor) ares used for coordinate transformation from geodetic reference frames ARAMCO-WGS84, GDMS and MTRF-2000 to KSA-GRF17 (solution of March 2019). A grid of 3D transformation parameters is used for transformation from ARAMCO Ain Al Abd reference frame to KSA-GRF17.

The service allows access to border lines that explain the international land borders of Saudi Arabia with its neighboring countries.

The service allows you to take advantage of the services of the KSA-CORS Continuous Monitoring Stations Network, which is a network of reference stations that operates continuously for positioning using GPS / GNSS satellite positioning techniques, and provides the information necessary for users to perform the office processing of their GPS / GNSS observations It also provides the necessary data for users to perform the office processing of their positioning observations, real-time positioning services (network, differential, and one-point) with national coverage and high accuracy for users, and services for processing positioning observations via the Internet for users.