| EIGEN-6c2????????????й???½???????? |
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| 引用本文： | ????,??????,???,?????.EIGEN-6c2????????????й????????????[J].大地测量与地球动力学,2014,34(5):21-24. |
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| 作者姓名： | ??¾? ?????? ??? ????? |
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| 摘 要： | ????????λ???????????????????????й???????????GPS/??????????EIGEN-6c2??EGM08?????????????????EIGEN-6c2?????????????EGM08????????2~3 cm??????????????????????????18 cm?????????1985?????????????????(W 0???????26 cm??
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| 关 键 词： | ????????? GPS/?? EIGEN-6c2 EGM08 1985???????? |
ACCURACY ANALYSES OF EIGEN-6C2 GEOPOTENTIAL ??
MODEL IN CHINA MAINLAND |
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| Zhao Dejun,Zhang Minli,Wang Qiang,Chen Yongxiang.ACCURACY ANALYSES OF EIGEN-6C2 GEOPOTENTIAL ??
MODEL IN CHINA MAINLAND[J].Journal of Geodesy and Geodynamics,2014,34(5):21-24. |
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| Authors: | Zhao Dejun Zhang Minli Wang Qiang Chen Yongxiang |
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| Abstract: | A rigorous formula for computing altitude anomaly with global geopotential model was proposed??and accuracy of two geopotential models??EIGEN??6c2 and EGM08 were checked using GPS/leveling data in different areas.Results show that the accuracy of altitude anomaly of EIGEN??6c2 model is 2~3 cm higher than that of EGM08 model??especially??it is up to 18 cm in Tibetan plateau.Morerover??the system difference between 1985 national height datum and global height datum????W????0??is 26 cm determined by the formula. |
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| Keywords: | geopotential model GPS/leveling EIGEN-6c2 EGM08 1985 national height datum |
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