Physics:Conventional International Origin
From HandWiki
Short description: Reference axis of the pole's average location on the Earth's surface over the year 1900
Conventional International Origin (CIO) is a conventionally defined reference axis of the pole's average location on the Earth's surface over the year 1900–1905.[1]
Polar motion is the movement of Earth's rotation axis across its surface. The axis of the Earth's rotation tends, as the axis of a gyroscope, to maintain its orientation to inertial space. The Conventional International Origin is used to measure this movement.
References
- ↑ Muneendra Kumar (2007). "Coordinates : A resource on positioning, navigation and beyond - Blog Archive - The Real Definition of ITRF". mycoordinates.org. http://mycoordinates.org/the-real-definition-of-itrf/. Retrieved 2014-05-22.
- General
- Bernard Guinot (2003). "Newsletter 2". "Nomenclature for Fundamental Astronomy" (NFA). IAU. http://syrte.obspm.fr/iau/iauWGnfaTemp/Newsletter2.html. Retrieved 2010-02-07.
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