| 2000国家重力基本网部分站的最新绝对重力测量 |
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| 引用本文： | 张宏伟,董朝阳,赵东明,肖凡,李建国,纪立东.2000国家重力基本网部分站的最新绝对重力测量[J].大地测量与地球动力学,2011,31(4):52-55. |
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| 作者姓名： | 张宏伟 董朝阳 赵东明 肖凡 李建国 纪立东 |
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| 作者单位： | 1)61365部队，天津 300140;2)解放军信息工程大学测绘学院，郑州 450052 |
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| 基金项目： | 教育部中国大陆构造环境监测网络绝对重力测量专项 |
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| 摘 要： | 为分析部分2000国家重力基本网点的长期稳定性，应用FG5/240绝对重力仪在该网的永兴岛和郑州站进行了绝对测量。对观测结果的处理表明，观测精度优于5×10 -8 ms -2 ；同时对观测值及其对应的2000国家重力基本网点的重力值进行了比较，得出两者之间重力值差异变化。
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| 关 键 词： | FG5/240绝对重力仪 2000国家重力基本网 绝对重力测量 垂直梯度 重力年变化量 |
LATEST ABSOLUTE GRAVITY MEASUREMENT AT SOME POINTS OF 2000 NATIONAL BASIC GRAVITY NETWORK |
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| Zhang Hongwei,Dong Chaoyang,Zhao Dongming,Xiao Fan,Li Jianguo,Ji Lidong.LATEST ABSOLUTE GRAVITY MEASUREMENT AT SOME POINTS OF 2000 NATIONAL BASIC GRAVITY NETWORK[J].Journal of Geodesy and Geodynamics,2011,31(4):52-55. |
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| Authors: | Zhang Hongwei Dong Chaoyang Zhao Dongming Xiao Fan Li Jianguo Ji Lidong |
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| Institution: | 1)61365 Troops，Tianjin 300140;2.Surveying and Mapping Institute of Information Engineering University, Zhengzhou 450052 |
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| Abstract: | To analyze the long-term stability of some points of 2000 National Basic Gravity Network, the absolute gravimeter, FG5/240, was applied to the absolute gravity measurement for two benchmark points of 2000 National Basic Gravity Network, which are located in the Yongxing island and at Zhengzhou station, and the observation accuracy was proved to be better than 5×10 -8 ms -2. As a result, the differences between the observation values and the reference values at the two points of 2000 National Basic Gravity Network are obtained. |
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| Keywords: | FG5/240 absolute gravimeter 2000 National Basic Gravity Network absolute gravity measurement vertical gradient annual variation of gravity |
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