Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999pabei..17..126g&link_type=abstract
Prog. Astron., Vol. 17, No. 2, p. 126 - 135
Astronomy and Astrophysics
Astronomy
Earth Rotation: Tidal Effects
Scientific paper
In recent years, the more precise and rich observational data have been contributed and a number of new ocean tide models have been produced with the development of the satellite altimetry technique. A remarkable progress of monitoring high-frequency variation in Earth rotation from both modern space techniques and new methods has been made. The daily and subdaily variations of Earth rotation are detected with these techniques. The dominant reason of high frequency variation in Earth rotation comes from the ocean tide, which produces the variation of both tidal height and velocity of tidal current generated by the tidal potential to excite changes in Earth rotation. It is shown that the high frequency variation of Earth rotation detected from space geodetic techniques agrees well with daily and subdaily variation predicted from the ocean tide model.
Gul Zhennian
Jin Wenjing
Wang Baowei
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