Bulletin géodésique

, Volume 65, Issue 1, pp 18–21 | Cite as

Prediction of Earth orientation

  • Dennis D. McCarthy
  • Brian J. Luzum


The method for predicting x, y, and UT1-UTC as conceived and implemented by the Subbureau for Rapid Service and Prediction of the International Earth Rotation Service (IERS) is shown. For polar motion, the method is an extrapolation of an annual ellipse and Chandler circle. The method for UT1-UTC involves a simple differencing technique.


Polar Motion Flicker Noise Annual Ellipse Earth Orientation Parameter Earth Orientation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Dickey JO, Freedman AP, Deutsch K, Steppe JA, Eubanks TM (1988) Short-term prediction of length of day using atmospheric angular monentum data and the JPL Kalman Filter, (Abstract). InEOS Trans. Am. Geophys. Un. 69: 1153.Google Scholar
  2. IERS Annual Report for 1989 (1990) Paris Observatory.Google Scholar
  3. McCarthy DD, Luzum BJ, (1991) Combination of Precise Observations of the Orientation of the Earth. Accepted byBulletin Geodesique.Google Scholar
  4. McCarthy DD, (1988) Predicting Earth Orientation. InThe Earth's Rotation and Reference Frames for Geodesy and Geodynamics, pp. 275–280, A. K. Babcock and G. A. Wilkins, eds., Kluwer Academic Publishers, Dordrecht.Google Scholar

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • Dennis D. McCarthy
    • 1
  • Brian J. Luzum
    • 1
  1. 1.U.S. Naval ObservatoryWashington DCUSA

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