The African Geodetic Reference Frame (AFREF) is a project designed to unify the many
geodetic reference frames of
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
using data from a network of permanent Global Navigation Satellite Systems (
GNSS
A satellite navigation or satnav system is a system that uses satellites to provide autonomous geo-spatial positioning. It allows satellite navigation devices to determine their location (longitude, latitude, and altitude/elevation) to high p ...
) stations as the primary data source for the implementation of a uniform reference frame.
See also
*
European Terrestrial Reference System 1989
The European Terrestrial Reference System 1989 (ETRS89) is an ECEF (Earth-Centered, Earth-Fixed) geodetic Cartesian reference frame, in which the Eurasian Plate as a whole is static. The coordinates and maps in Europe based on ETRS89 are not ...
References
Geodetic datums
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