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| 现代大地测量学中的垂线偏差 | |
| 引用本文： | 丁一帆,李月锋,丁行斌.现代大地测量学中的垂线偏差[J].大地测量与地球动力学,2006,26(2):115-119. |
| 作者姓名： | 丁一帆 李月锋 丁行斌 |
| 作者单位： | 1. 北京市遥感信息研究所,北京,100085 2. 上海应用技术学院数理部,上海,200235 3. 信息工程大学测绘学院,郑州,450053 |
| 基金项目： | 上海市高校选拔培养优秀青年教师科研项目 |
| 摘 要： | 从大地测量学的角度论述了垂线偏差概念从传统到现代的发展和演变,比较全面地探讨了现代垂线偏差的含义和测定方法。通过对垂线偏差量级和误差大小的具体分析,得出结论一般长周期的、幅度较小的非潮汐变化要小于潮汐变化,但短周期的、幅度较大的非潮汐变化则可能与潮汐变化相当,个别地区甚至还会超过潮汐变化,这种情况完全可以用重复重力测量的方法检测到,这也说明重复测量的方法是可行的。 |
| 关 键 词： | 现代大地测量 垂线偏差 测定精度 重复重力测量 重力场的时空变化 |
| 文章编号： | 1671-5942(2006)02-0115-05 |
| 修稿时间： | 2005年9月26日 |
DEFLECTION OF VERTICAL IN MODERN GEODESY |
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| Ding Yifan,Li Yuefeng,Ding Xingbin.DEFLECTION OF VERTICAL IN MODERN GEODESY[J].Journal of Geodesy and Geodynamics,2006,26(2):115-119. | |
| Authors: | Ding Yifan Li Yuefeng Ding Xingbin |
| Abstract: | The development and evolution from traditional conception to modern conception of deflection of the vertical are discussed in term of geodesy. The conception and method for determining of modern deflection of the vertical are explored in an all-round way.Through concretely analyzing the magnitude and error of deflection of the vertical, we can get the results that the long-period, smaller-range non-tidal variations are commonly less than the tidal ones, but the short-period, larger-range non-tidal variations are comparable to the tidal ones, especially in some areas they are even bigger than the tidal ones, this state can be measured by repeated gravimetry completely. |
| Keywords: | modern geodetics plumb line deflection measuring precision repeated gravimetry variation of gravity field in time and spatial domain |
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