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Researches in China on the Effects of Tides on the Earth Rotation
Authors:Naiyuan Xiao  Yifei Xia
Affiliation:(1) Department of Astronomy, Nanjing University, 210093 Nanjing, PR China, e-mail
Abstract:In this paper the tidal phenomena on the Earth are concisely specified, including solid tides, ocean tides and atmospheric tides due to the luni-solar tide-generating force, and the Earth pole tide due to the motion of the Earth's rotation axis (polar motion); as well as their effects on the Earth rotation. The outcomes of scientific researches of Chinese astronomers on these topics are described in some detail. These researches deal with the mechanisms responsible for tidal effects on the earth rotation, and on the measurements of the Earth rotation parameters. Finally, the effects discovered by Chinese researchers on the measurements of the period and change in period of pulsars are discussed. These effects are very small in magnitude but not negligible.
Keywords:luni-solar tides  measurement of the Earth rotation  pole tides  variation of the Earth rotation
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