Simulation of subdiurnal variation in the earth's rotation

被引：3
|
作者：
Akulenko, L. D. [1 ]
Markov, Yu. G. [2 ]
Perepelkin, V. V. [2 ]
机构：
[1] Russian Acad Sci, Inst Problems Mech, Moscow 117526, Russia
[2] State Tech Univ, Moscow Inst Aviat, Moscow 125080, Russia
来源：
DOKLADY PHYSICS | 2010年 / 55卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
DOKLADY Physic; International Earth Rotation Service; Precision Forecast; Tidal Factor; Gravitational Moment;
D O I：
10.1134/S1028335810020126
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The mathematical model of subdiurnal tidal variation in the rotation of the deformable Earth was developed on the basis of the celestial-mechanical approach, considering the gravity-tidal lunar and solar disturbances. The subdiurnal and nearly diurnal variations of the Earth's axial rotation were investigated using the third Euler-Liouville equation and the results of these measurements within a day (IGS). The model parameters were identified by the least squares method and the features of the Earth's axial rotation within a day were revealed. The combinational frequencies confirmed by the International Earth Rotation Service (IERS) observations were also found. Investigations revealed that the diurnal variations in the axialrotation velocity of the deformable Earth were caused by lunar-solar disturbances in the form of the zonal terrestrial tides.
引用
收藏
页码：93 / 98
页数：6
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