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《ADVANCE IN EARTH SCIENCES》 2000-01
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SOME CONSIDERATIONS OF THE INVESTIGATION IN GLOBAL VERTICAL SYSTEM

ZHANG Chijun (Institute of Geodesy and Geophysics, CAS, Wuhan 430077,China)  
It is important to investigate global vertical datum (G.V.D) for humanity and nature.In this paper, the meaning, efficiency and method for establishing G.V.D were introduced, the problems in this field were pointed out, and the primary suggestions to resolve these problems were presented.
【Fund】: 国家自然科学基金!“精确测定山区正高的研究”(编号:49674208);;中国科学院“九五”重点项目!(编号:KZ952-JI-41
【CateGory Index】: P22
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