naa a22 4500 510732518 CHVBK 20180411082958.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1134/S106377291304001X doi (NATIONALLICENCE)springer-10.1134/S106377291304001X Rotational-oscillatory variations in the Earth rotation parameters within short time intervals [Elektronische Daten] [L. Akulenko, Yu. Markov, V. Perepelkin, L. Rykhlova, A. Filippova] A mathematical model for rotational-oscillatory motions of the Earth is constructed by applying celestial mechanics to the spatial problem of the Earth-Moon system subject to the Sun's gravitation. Some basic phenomena associated with tidal irregularity in the Earth's axial rotation and the polar oscillations are studied. It is shown that the perturbing component of the gravitational-tidal forces orthogonal to the plane of the lunar orbit is responsible for some short-term perturbations in the Moon's motion. The constructed model for the rotational-oscillatory motions of the deformable Earth includes both the main high-amplitude perturbations and more complex small-scale motions attributed to short-term lunar perturbations with combinational frequencies. Numerical modeling (interpolation and forecasting) of the Earth rotation parameters within various time intervals based on astrometric data obtained by the International Earth Rotation Service is presented. Pleiades Publishing, Ltd., 2013 Akulenko L. Institute for Problems of Mechanics, Russian Academy of Sciences, pr. Vernadskogo 101, 117526, Moscow, Russia aut Markov Yu Moscow Institute of Aviation, Volokolamskoe sh. 4, 125080, Moscow, Russia aut Perepelkin V. Moscow Institute of Aviation, Volokolamskoe sh. 4, 125080, Moscow, Russia aut Rykhlova L. Institute of Astronomy, Russian Academy of Sciences, ul. Pyatnitskaya 48, 109017, Moscow, Russia aut Filippova A. Moscow Institute of Aviation, Volokolamskoe sh. 4, 125080, Moscow, Russia aut Astronomy Reports SP MAIK Nauka/Interperiodica 57/5(2013-05-01), 391-399 1063-7729 57:5<391 2013 57 11444 https://doi.org/10.1134/S106377291304001X text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S106377291304001X text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Akulenko L. Institute for Problems of Mechanics, Russian Academy of Sciences, pr. Vernadskogo 101, 117526, Moscow, Russia aut NATIONALLICENCE 700 1- Markov Yu Moscow Institute of Aviation, Volokolamskoe sh. 4, 125080, Moscow, Russia aut NATIONALLICENCE 700 1- Perepelkin V. Moscow Institute of Aviation, Volokolamskoe sh. 4, 125080, Moscow, Russia aut NATIONALLICENCE 700 1- Rykhlova L. Institute of Astronomy, Russian Academy of Sciences, ul. Pyatnitskaya 48, 109017, Moscow, Russia aut NATIONALLICENCE 700 1- Filippova A. Moscow Institute of Aviation, Volokolamskoe sh. 4, 125080, Moscow, Russia aut NATIONALLICENCE 773 0- Astronomy Reports SP MAIK Nauka/Interperiodica 57/5(2013-05-01), 391-399 1063-7729 57:5<391 2013 57 11444 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer