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Geodesy or geodetics [1] 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. [2]
Satellite geodetic data and methods can be applied to diverse fields such as navigation, hydrography, oceanography and geophysics. Satellite geodesy relies heavily on orbital mechanics . History
The World Geodetic System (WGS) is a standard used in cartography, geodesy, and satellite navigation including GPS. The current version, WGS 84 , defines an Earth-centered, Earth-fixed coordinate system and a geodetic datum , and also describes the associated Earth Gravitational Model (EGM) and World Magnetic Model (WMM).
Struve Geodetic Arc. The Scandinavian-Russian meridian arc or Struve Geodetic Arc, named after the German astronomer Friedrich Georg Wilhelm von Struve, was a degree measurement that consisted of a nearly 3000 km long network of geodetic survey points. The Struve Geodetic Arc was one of the most precise and largest projects of earth measurement ...
EEGECS, or European Education in Geodetic Engineering, Cartography and Surveying, is a European, European Union-funded consortium, or network, of institutes of higher learning aimed at enhancing dialogue and exchange of information, and to move towards the creation of a "European Area of Geodetic Engineering, Cartography and Surveying".
The Global Geodetic Observing System (GGOS) is the observing arm of the IAG that focuses on proving the geodetic infrastructure to measure changes in the earth's shape, rotation and mass distribution. [3] [4] The International GNSS Service (IGS), part of GGOS, archives and processes GNSS data from around the world. [5]
Geomatics engineering is a rapidly developing engineering discipline which focuses on spatial information (i.e. information that has a location). [17] The location is the primary factor used to integrate a very wide range of data for spatial analysis and visualization.
The Public Land Survey System was mainly involved in overseeing the surveying of these vast new swaths of private lands along the ever-shifting frontier, while Federal Organizations such as the United States Coast and Geodetic Survey and the United States General Land Office, among several others, dealt with surveying all the lands deemed ...