supported by Knowledge Innovation Program of the Chinese Academy of Sciences (Grant Nos. KZCX2-YW-133 and KZCX2-YW-Q08-2);National Natural Science Foundation of China (Grant Nos. 41021003, 41074053 and 40730316)
The parameters, i.e. the Period and the Quality factor, of the Earth's free core nutation (FCN) are closely related to the dissipative coupling between the core and the mantle. Based on the FCN parameters obtained fro...
supported jointly by the National Natural Science Foundation of China (Nos. 40974046,90814009 and 40730316);the Natural Science Foundation of Hubei Province (No. 2008CDB389);the Knowledge Innovation Project of Chinese Academy of Sciences (No. KZCX2-YW-133)
The mode serials of the Earth’s free oscillation provide some important information on the Earth’s deep structure and superconducting gravimeters (SG) can investigate the phenomena of the Earth’s free oscillation...
Supported by the Chang Jiang Scholar Awards Program of China;the National Science Foundation of China (No. 40874035);the Special Earthquake Research Project from China Earthquake Administration (No. 200908029);the Knowledge Innovation Initiative of the Chinese Academy of Sciences (No. KZCX2-YW-133);the National Natural Science Foundation of China (No. 40730316)
Although it is well known that coseismic gravity changes take place during an earthquake, previous research has not yielded convincing evidence demonstrating that significant gravity changes occur before large earthqu...
supported by the National Natural Science Founda-tion of China (Grant Nos. 40574034 and 40730316);Key Project of the Knowledge Innovation of Chinese Academy of Sciences (Grant No. KZCX2 -YW-133)
The translational oscillation of the solid inner core is one of the Earth’s fundamental normal modes, which is also called Slichter mode. The normal mode should be split to form a triplet due to the Earth’s rotation...
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...