| CQG2000似大地水准面模型 在青藏高原地区区域重力调查中的应用 |
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| 引用本文： | 邸志众,周纪平.CQG2000似大地水准面模型 在青藏高原地区区域重力调查中的应用[J].物探与化探,2007,31(5):451-454. |
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| 作者姓名： | 邸志众 周纪平 |
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| 作者单位： | 中国地质调查局,发展研究中心,北京,100080 |
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| 摘 要： | 区域重力调查中,GPS高程测量的精度直接影响重力测量成果的精度.用国内最新研制的测绘科技成果--CQG2000似大地水准面模型,对GPS测得的大地高程进行改算,可得到较高精度的正常高成果.方法应用于青海三江流域1:20万区域重力调查工作中,取得了较好的效果.
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| 关 键 词： | 青藏高原 区域重力调查 似大地水准面模型 GPS高程测量 |
| 文章编号： | 1000-8918（2007）05-0451-04 |
| 收稿时间： | 2007-04-27 |
| 修稿时间： | 2007-04-27 |
THE APPLICATION OF CQG2000 QUASI GEOID MODEL TO REGIONAL GRAVITY SURVEY OF QINGHAI-TIBET PLATEAU |
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| DI Zhi-zhong,ZHOU Ji-ping.THE APPLICATION OF CQG2000 QUASI GEOID MODEL TO REGIONAL GRAVITY SURVEY OF QINGHAI-TIBET PLATEAU[J].Geophysical and Geochemical Exploration,2007,31(5):451-454. |
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| Authors: | DI Zhi-zhong ZHOU Ji-ping |
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| Institution: | Development and Research Center ,China Geological Survey, Beijing 100037 ,China |
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| Abstract: | The accuracy of regional gravity survey is directly affected by the precision of GPS altimetric survey. Using the CQG2000 quasi geoid model developed recently in China, the authors corrected the ellipsoidal height of GPS survey and, as a result, attained a higher accuracy of orthometric altimetric survey. With the method presented in this paper, a better result in 1:200000 regional gravity survey was achieved in the Three-River Drainage Area of Qinghai Province. |
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| Keywords: | Qinghai-Tibet plateau regional gravity surveyquasi geoid model GPS altimetric survey |
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