High-accuracy forecasting of the Earth’s polar motion

• Published in: Astronomy reports Vol. 50; no. 4; pp. 333 - 340
• Main Authors: Akulenko, L D, Kumakshev, S A, Markov, Yu G, Rykhlova, L V
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer Nature B.V 01-04-2006
• Subjects: Accuracy; Earth; Studies
• ISSN: 1063-7729; 1562-6881
• DOI: 10.1134/S106377290604007X

The fundamental astrometrical problem of high-accuracy interpolation of the trajectory of the Earth's pole and construction of an adequate theoretical model for associated complex multifrequency oscillations are considered. Measurements of the Earth-rotation parameters demonstrate the possibility of adjusting the filtering algorithm to make it suitable for practical navigational applications associated with a need for reliable high-accuracy predictions over the required time scales (short-and medium-terms). Numerical simulations and tests of the procedure used to optimize the adjustment parameters are presented.