supported by the National Natural Science Foundation of China(40874038,41074053 and 41021003)
Tidal gravity changes arise from the response of the solid Earth to the tidal forces of the Sun,Moon and planets close to the Earth,and are a comprehensive reflection of the structure and distribution of physical prop...
supported by the Key Project of the Knowledge Innovation of Chinese Academy of Sciences (Grant No. KZCX2-YW-133, KZCX2-YW-Q08-2);National Natural Science Foun-dation of China (Grant No. 40874038 and 40730316)
Based on the nearly diurnal resonance in the tidal gravity observations, the temporal variations in period of the Earth's free core nutation (FCN) are investigated by using the tidal gravity observations of 18-year...