Geodesy or geodetics is the science of measuring and representing the
geometry, gravity, and spatial orientation of the Earth in temporally varying
3D. It is called planetary geodesy when studying other astronomical bodies,
such as planets or circumplanetary systems.
Geodynamical phenomena, including crustal motion, tides, and polar motion, can
be studied by designing global and national control networks, applying space
geodesy and terrestrial geodetic techniques, and relying on datums and
coordinate systems.
Geodetic job titles include geodesist and geodetic surveyor.
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