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地震 ›› 1998, Vol. 18 ›› Issue (3): 281-285.

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大气潮对重力固体潮影响的研究

杨又陵, 蔚晓利, 苏乃秦, 王云山   

  1. 中国乌鲁木齐 830011 新疆维吾尔自治区地震局
  • 收稿日期:1997-08-01 修回日期:1997-12-17 出版日期:1998-07-31 发布日期:2022-09-08
  • 作者简介:杨又陵,女, 1951年1月出生,高级工程师,主要从事地震前兆及地震预报研究工作。

STUDY OF THE INFLUENCE OF ATMOSPHERIC TIDE ON EARTH TIDE

Yang Youling, Yu Xiaoli, Su Naiqin, Wang Yunshan   

  1. Seismological Bureau of Xinjiang Uygur Autonomous Region, Urumqi 830011, China
  • Received:1997-08-01 Revised:1997-12-17 Online:1998-07-31 Published:2022-09-08

摘要: 通过气压变化对重力观测的影响和大气潮对重力固体潮的负荷效应二方面的研究,得出将GS型重力仪置于密封装置,能使气压的影响量降低1个数量级。谱分析结果表明,大气潮使S1波的振幅增大10% ,引起相位偏差约10°,使K1波和S2波的振幅分别增大0.2%和0.37% ,而对其他主波的影响不大,使用中可忽略。

关键词: 大气潮, 重力固体潮, 干扰, 负荷效应

Abstract: By means of studying the influence of atmospheric pressure variation on gravity measurement and the loading effect of earth tide, it is inferred that the influence of atmospheric pressure may decrease by one order of magnitude, if GS gravimeter is placed in the confined container. Spectral analysis shows that atmospheric tide may increase the amplitude 10% for wave S1, and increase 0.2% and 0.37% for waves K1 and S2. The few influences on other main waves may be neglect in use.

Key words: Atmospheric tide, Earth tide, Disturbance, Loading effect