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《Science of Surveying and Mapping》 2006-06
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Various gravity reduction methods and their influences on the geoid and the Earth's external gravity field

SHEN Wen-bin~(①②)(① School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China;② Key Laboratory of Geospace Environment and Geodesy,Ministry of Education China,Wuhan University,Wuhan 430079,China)  
Various gravity reduction methods and their influences on the geoid and the Earth's external gravity field are investigated.The problem about the determination of the geoid with the accuracy of centimeter-level is discussed,especially,the influences on the geoid determination due to the errors of the orthometric height are investigated.
【Fund】: 国家自然科学基金(40174004 40574004)
【CateGory Index】: P223
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