| 海洋负荷潮汐对测站位移影响的理论研究 |
| |
| 引用本文： | 张捍卫,郑勇,赵方泉.海洋负荷潮汐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(1):69-73. |
| |
| 作者姓名： | 张捍卫 郑勇 赵方泉 |
| |
| 作者单位： | 1. 中国科学院测量与地球物理研究所,武汉,430077
2. 郑州解放军信息工程大学测绘学院,郑州,450052 |
| |
| 基金项目： | 中国科学院知识创新工程重要方向项目 (KZCX3-SW -B2 )资助 |
| |
| 摘 要： | 测站位移的海潮效应可以看作是一种负荷影响。海潮负荷对测站位移的影响在某些台站（例如大洋中的岛屿以及沿海岩地区）可达几厘米，因此空间大地测量技术中必须以改正。研究了海洋负荷潮汐对测站位移影响的理论和方法，在推导过程中回避了将点负荷密度展开为球谐函数，而是直接以负荷引力位为基础，并将海潮潮高引入表达式中，推导出了海潮对测站位移影响的有关公式，同时探讨了在毫米级精度时需要注意的一些问题，为空间大地测量学的理论研究提供参考和依据。
|
| 关 键 词： | 海洋负荷潮汐 测站位移 负荷Love数 空间大地测量技术 负荷引力位 |
| 文章编号： | 1671-5942(2003)01-0069-05 |
| 修稿时间： | 2002年10月10 |
THEORETICAL RESEARCH OF OCEAN LOADING TIDE INFLUENCE ON STATION DISPLACEMENTS |
| |
| Zhang Hanwei{},Zheng Yong{} and Zhao Fangquan{}Institute of Geodesy and Geophysics,CAS,WuhanInstitute of Surveying and Mapping,Information Engineering University,Zhengzhou.THEORETICAL RESEARCH OF OCEAN LOADING TIDE INFLUENCE ON STATION DISPLACEMENTS[J].Journal of Geodesy and Geodynamics,2003,23(1):69-73. |
| |
| Authors: | Zhang Hanwei{} Zheng Yong{} and Zhao Fangquan{}Institute of Geodesy and Geophysics CAS WuhanInstitute of Surveying and Mapping Information Engineering University Zhengzhou |
| |
| Institution: | Zhang Hanwei{1)},Zheng Yong{2)} and Zhao Fangquan{2)}1)Institute of Geodesy and Geophysics,CAS,Wuhan4300772)Institute of Surveying and Mapping,Information Engineering University,Zhengzhou450052 |
| |
| Abstract: | Ocean tide influence on station displacement can be regarded as a loading influence. In some sits, for example, group of islands in the ocean and coastland ocean tides loading influence on station displacements can reach centimeters. Therefore, it must be taken into account in space geodesy.In this paper, we studied the theory and method for influence of ocean loading on station displacement, in the process of deducing the formula, we avoided spreading the loading density of the point to harmonic function, but directly take the gravitational potential of ocean loading as a foundation and introducting the height of ocean tides into this expression, have deduced out the relevant formulas for ocean tide's influence on station displacements.At the same time we have studied some problems of the accuracy of millimeter order to provide reference and bases for theoretical research of space geodesy. |
| |
| Keywords: | ocean tides station displacement loading Love numbers |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
