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《Crustal Deformation and Earthquake》 1993-03
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STUDY ON NON-TIDAL GRAVITY CHARGE NEAR ERHAI LAKE

Jian Daxi and Sun shao'an (Institute of Seismology, State Seismological Bureau) Liu Li (Postal and Telecommunications School, Hubei Province)  
In the paper,the analytic expression and the magnitude that the change of water level in Erhai lake has influence on local gravitational field are given, and the influence is compared with analytical results of hydrology, relative gravimetry and gravity tidal observation. The comparision shows that the influence varies as the inverse of distance from Erhai lake. In gravity tidal observation, the preturbation is not clear on main frequence band, and the influence is drowned in the drift and amounts to 2% of daily drift. In relative gravimetry, the magnitude of parturbation in some station can reach 10×10~(-8)m/s~2, when the change of water level is large.
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
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7 LUO Zhicai1,2 LI Jiancheng1,2 CAO Huasheng1, 2 WANG Zhengtao1,2(1 School of Geodesy and Geomatics;2 Key Laboratory of Geospace Environment and Geodesy, Ministry of Education,Wuhan University,129 Luoyu Road,Wuhan 430079,China);COURSE OFFERED AND PEDAGOGICAL STUDIES FOR PHYSICAL GEODESY[J];Journal of Geomatics;2008-03
8 Huang Liliang Institute of Crustal Dynamics, SSB;ON THE DYNAMIC SOURCE OF THE LATEST TECTONIC MOVEMENT IN CHINA MAINLAND[J];Seismological Research of Northeast China;1990-04
9 WANG Yu-ying~1,BAI Qi-guang~2,ZHANG Jian-yi~1 HOU Wan-kai~1,WANG Hai-yan~1,ZHAO Yong-zhi~2 (1. Earthquake Administrtion of liaoning Province,liaoning Shenyang 110031;2.Chaoyang seismic Station, Liaoning Chaoyang 122000);STUDY ON THE RELATION BETWEEN NEIMENG M_S 5.9 EATHQUAKE AND THE PRECURSORY ANOMALY CHARACTERISTICS[J];Seismological Research of Northeast China;2004-04
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