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综合分析处理了包括武汉台在内的全球地球动力学(GGP)台站超导重力仪长期、连续重力观测资料,研究和检测了地球液核的动力学效应。系统讨论了在日月引潮力、表面负荷和液核动力学行为引起的核幔边界及内核边界上,压力和重力扰动等不同驱动力作用下,地球的弹性引力形变响应.基于周日重力潮汐观测中的共振放大特征,通过国际超导重力仪观测资料的迭积,研究了地球的自由和章动(FCN),精密确定了FCN参数.采用位移场的变分方法研究了液核的自由振荡,严密推导获得了用于有限元数值计算的本征值 本征向量问题.同时采用GGP台站超导重力仪长期、连续、高质量重力观测数据,研究了固体内核的平动振荡
The long-term and continuous gravimetric observations of GGP superconducting gravimeter, including Wuhan station, were comprehensively analyzed and processed to study and test the dynamical effects of the Earth's liquid core. The Earth's elastic gravitational deformation response is systematically discussed under different driving forces such as the tidal force, surface loading and the nuclear dynamic behavior caused by the different driving forces on the core-mantle boundary and the core boundary, and on the basis of the gravity tide The characteristics of resonance amplification in observation are studied, and the free and nutation (FCN) of the earth is studied through the superposition of observational data of the international superconducting gravimeter. The FCN parameters are precisely determined. The variability of the liquid nuclei Oscillation and rigorously derive the eigenvalue problem of the eigenvalue used in the numerical calculation of the finite element.Meanwhile, by using the long-term, continuous and high-quality gravimetric observation data of the GGP station superconducting gravimeter, the translational oscillations of the solid core