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《Chinese Journal of Geophysics》 1994-02
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GRAVITY FIELD VARIATION AND EARTH CRUSTAL DEFORMATION IN THE THREE GORGES AREA DUE TO THE WATER LOADING OF THE YANGTZE RIVER

ZHANG KE-FEI; BIAN SHAO-FENG; TAO BEN-ZAO (Wuhan Technical University of Surueying and Mapping, Wuhan, 430070)  
As one of the world biggest reservoirs, the Yangtze River reservoir, will be established in China in the near future. The accumulation of the water body mass will cause the redistribution of the earth mass. The local geophysical structure of the earth will be changed. Thus, the local gravity field and the levelling datum variations, as well as the earth crustal deformation, will occur in the Three Gorges area.In this paper, all of the above problems are discussed theoretically and evaluated numerically. The study results show that the equipotential surface (and geoid), gravity vector (value and direction), spirit levelling result and the earth crustal deformation will be changed significantly. So it is very important for geodesists and geophysicists to establish some monitoring networks and to study the problems such as earthquake, slip-off slope, deformation of the big dam and the geophysical structure of the earth crust. The influences on the original geodetic observations such as gravity observations, spirit levelling data, astrogeodetic observations and GPS satellite observations, should be reconsidered carefully and corrected.
【CateGory Index】: TV697.2
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【Co-citations】
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1 YIN Wen-sun;ZHANG Jian-zhong;College of Marine Geosciences,Ocean University of China;;The effect of Terrestrial and submarine topography on the marine gravity anomalies[J];地球物理学进展;2014-05
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5 Zhang Kefei (Wuhan Technical University of Surveying and Mapping) Bian Shaofeng (Institute of Surveying and Mapping of PLA);The Determination of the Regulated Geiod Undulations[J];解放军测绘学院学报;1993-03
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1 SUN He-Ping~1,HSU Houtse~1,CHEN Wu~2,CHEN Xiao-Dong~1,ZHOU Jiang-Cun~1,LIU Ming~1,GAO Shan~21 Key Laboratory of Dynamical Geodesy,Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China2 Department of Land Surveying and Geoinformatics,Hong-Kong Polytechnic University,Hung Hom,Knowloon,Hong Kong;Study of Earth's gravity tide and oceanic loading characteristics in Hong Kong area[J];地球物理学报;2006-03
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