| 固体潮对测站位移影响的理论研究 |
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| 引用本文： | 张捍卫,郑勇,赵方权.固体潮对测站位移影响的理论研究[J].大地测量与地球动力学,2003,23(3):98-103. |
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| 作者姓名： | 张捍卫 郑勇 赵方权 |
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| 作者单位： | 1. 中国科学院测量与地球物理研究所,武汉,430077
2. 郑州信息工程大学测绘学院大地系,郑州,450052 |
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| 基金项目： | 地球空间环境与大地测量教育部重点实验室资助项目 (0 2 -0 9-15 )，国家重大科学工程“中国地壳运动观测网络”项目 |
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| 摘 要： | 重新推导了IERS2 0 0 0中关于固体潮对测站位移影响的所有公式 ,指出 :在时间域内二阶和三阶引潮力位对测站位移影响的公式中 ,理论上应以测站地心距代替地球赤道半径。利用最新的精密引潮位展开代替IERS2 0 0 0采用的Cartwright&Tayler(1971)潮汐展开 ,重新计算了田谐潮波和带谐潮波的相对频率特性的改正。计算表明 ,以上两种修正在亚毫米量级上与IERS2 0 0 0存在差异 ,这在目前的空间大地测量技术中是必须考虑的。
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| 关 键 词： | 测站位移 固体潮 Love数 时间域 引潮力位 |
| 文章编号： | 1671-5942(2003)03-0098-06 |
THEORETICAL RESEARCH ON EFFECT OF EARTH TIDE ON STATION DISPLACEMENT |
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| Zhang Hanwei,Zheng Yong and Zhao Fangquan Institute of Geodesy and Geophysics,CAS,Wuhan\ Institute of Surveying and Mapping,Information Engineering University,Zhengzhou\.THEORETICAL RESEARCH ON EFFECT OF EARTH TIDE ON STATION DISPLACEMENT[J].Journal of Geodesy and Geodynamics,2003,23(3):98-103. |
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| Authors: | Zhang Hanwei Zheng Yong and Zhao Fangquan Institute of Geodesy and Geophysics CAS Wuhan\ Institute of Surveying and Mapping Information Engineering University Zhengzhou\ |
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| Institution: | Zhang Hanwei,Zheng Yong and Zhao Fangquan 1)Institute of Geodesy and Geophysics,CAS,Wuhan\ 430077 2)Institute of Surveying and Mapping,Information Engineering University,Zhengzhou\ 450052 |
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| Abstract: | The research on theoretical model of tidal effect on station displacement is an important part of data analysis in space geodesy.In this paper, a series of formulas of earth tidal effect on station displacement recommended in IERS2000 were re-deduced. It is pointed out that mean earth radius should be replaced by the station geocentric distance in the formulas of second- and third-order tide-generating potential(TGP) influence on station displacement in the time domain. Finally, the corrections of the relative frequency characteristic of tesseral and zonal harmonic waves are re-calculated by using the precise development of TGP presented lately to replace the TGP of Cartwright & Tayler(1971)development adopted in the IERS2000.The results indicates that there are the differences of both the corrections in the sub-millimeter level from that in IERS2000,it is necessary to account those differences in present space geodesy. |
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| Keywords: | station displacement earth tides Love number |
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