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《Journal of Geodesy and Geodynamics》 2013-05
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Xu Xinqiang;Zhao Dejun;Lou Nan;Xi'an Division of Surveying and Mapping;  
The separation between geoid and quasigeoid by using observed gravity data and SRTM3 terrain data in some areas of Qinghai-Tibet plateau was determined. Theory analyses and numerical tests showed that there existed a high correlation between the separation and elevation,and the average correction about first order height terms could be up to 1. 76 m,and the maximum correction about second order height terms could be up to 0. 03 m.
【Fund】: 国家自然科学基金(41104047);; 大地测量与地球动力学重点实验室开放基金(SKLGED2013-4-5-E)
【CateGory Index】: P223
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