地球科学进展 ›› 1998, Vol. 13 ›› Issue (5): 415 -422. doi: 10.11867/j.issn.1001-8166.1998.05.0415

干旱气候变化与可持续发展    下一篇

我国重力固体潮实验研究进展
许厚泽,孙和平   
  1. 中国科学院测量与地球物理研究所动力大地测量开放室 武汉 430077
  • 收稿日期:1998-05-04 修回日期:1998-06-20 出版日期:1998-10-01
  • 通讯作者: 许厚泽
  • 基金资助:

    中国科学院项目"国际地球动力学合作观测与研究"(KZ952-J1-411)和国家自然科学基金项目"地球近周日自由摆动的研究与检测"(项目编号:49574218)和"国际超导重力仪器观测资料综合分析"(编号: 49774223) 联合资助。

PROGRESS STATUS OF THE EXPERIMENTAL STUDY ON TIDAL GRAVITY IN CHINA

Hsu Houtze,Sun Heping   

  1. Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077
  • Received:1998-05-04 Revised:1998-06-20 Online:1998-10-01 Published:1998-10-01

综述了我国重力固体潮研究领域的相关成果,包括积累大量观测数据,建立国际潮汐基准和独立的国际标定系统,利用小参数扰动法发展了地球潮汐理论模型,用计算机演绎法实施潮汐位展开,用残差信号对数据作预处理,用小波分析方法设计滤波器,用远近区结合法解算海潮负荷,用大气重力格林函数法解算气压对重力场观测的影响,测定了地球的近周日自由摆动参数,将固体潮汐研究成果应用于地震和重力测量,对重力仪进行静电反馈改造,精密测定了仪器相位滞后和对超导重力仪进行了标定等内容,讨论了今后研究展望。

The corresponding research successes in the field of the tidal gravity obtained in China are summarized, they include: ①large amount of observations are accumulated from the international cooperative measurements and from the first hand station observations; ②the Wuhan international tidal fundamental station and independent calibration system are established; ③the theoretical tidal models are developed using a special small parameters perturbation method; ④the tidal potential development is carried out using computer algorithm; ⑤the new preprocessing method to study the variable characteristics of the tidal gravity are developed and the new filters are established using wavelet analysis method; ⑥the far-near region combination method and the atmospheric gravity Greens function are proposed to calculate the oceanic loading effect and the effect of the pressure on gravity;⑦ the parameters of the nearly diurnal free wobble of the Earth are determined;⑧ the application of the tidal gravity on the study of the earthquakes, gravity and space geodetics; ⑨the feedback system is installed on the gravimeters; ⑩the phase delay of the LCR instruments and the calibration factor of the superconducting gravimeter are determined accurately. The research prospects of the tidal gravity in the new future in China are also discussed in the paper.

中图分类号: 

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