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《Journal of Geomatics Science and Technology》 2014-01
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Geoid and Quasigeoid Transformation in Qinghai-Tibet Plateau

SUN Wen;WU Xiaoping;WANG Qingbin;ZHOU Rui;LIU Xiaogang;Information Engineering University;Xi'an Research Institute of Surveying and Mapping;National Key Laboratory of Geo-Information Engineering;Key Laboratory of Geo-space Environment and Geodesy of Ministry of Education,Wuhan University;  
The method of combining EGM2008 gravity field model and topographic coefficients for geoid and quasigeoid transformation was studied,while the error was also analyzed. Compared with only topographic coefficients,it was suggested that SRTM3 and CRUST2.0 model could be used to make the result more precise. The result in Qinghai-Tibet Plateau showed that the average difference between geoid and quasigeoid of this area was about 0.8 m.
【Fund】: 国家高技术研究发展专项经费资助(2013AA122502);; 国家自然科学基金项目(41104047;41174026;41274029;41304022);; 地球空间环境和大地测量教育部重点实验室开放基金(11-01-03)
【CateGory Index】: P223
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