期刊文献+

用超导重力仪的潮汐观测资料研究海潮模型 预览 被引量:20

Study of the ocean models using tidal gravity observations obtained with superconducting gravimeter
在线阅读 下载PDF
收藏 分享 导出
摘要 系统研究了潮汐观测资料中海潮模型的适应性问题,用基于数值离散褶积积分方法获得的海潮负荷对武昌超导重务仪观测资料作负荷改正。结果说明,海潮负荷改正后的重力场观测残差大大降低了,与理论潮汐参数模型相比,8个主要潮流的平均振幅因子由改正前的1.38%降至0.13%和0.26%。 The suitability problem of the ocean tidal models used in tidal gravity observations are studied systematically in this paper. The ocean loading corrections to observations obtained with superconducting gravimeter at Wuhan station are carried out based on the ocean loading vectors calculated with a discrete numerical integral method. The numerical results show that the observed tidal gravity residuals are reduced significantly after applying to the ocean loading correction. Comparing to the theoretical ones, before and after the loading correction, the average amplitude factors for 8 main waves are reduced from 1.38% to 0.13% (Csr3.0) and 0.26% (Fes95.2) , and the average phase lag for 8 main waves are reduced from -0.485° to -0.27° (Schw80), -0.145° (Csr3.0) and -0.04° (Fes95.2). It demonstrates that those obtained from satellite altimeter technique and finite element methods can be used to eliminate effectively the influence of the ocean loading in gravity observations when using various cotidal maps. It proves the oceanic models obtained with these methods to be more reliable than the others. They can be recommended as the basic information on the ocean loading corrections for the observation study in the geodesy and geophysics.
作者 孙和平 许厚泽 Sun Heping, Hsu Houtze, Luo Shaocong, Xu Jianqiao (Open Laboratory of the Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan, 430077,China)
出处 《测绘学报》 EI CSCD 北大核心 1999年第2期 115-120,共6页 Acta Geodaetica et Cartographica Sinica
基金 国家自然科学基金,中国科学院资助项目,国家攀登计划项目
关键词 重力潮汐信号 海潮模型 超导重力仪 检测 潮汐 Tidal gravity signals, Oceanic models, Superconducting gravimeter detection
  • 相关文献

参考文献3

  • 1Sun H P,Bull Inf Marees Terrestres,1992年,113卷,8271页 被引量:1
  • 2Hsu H T,Marine Geophysical Researches,1984年,7卷,117页 被引量:1
  • 3Sun H P,Proc 13th Int Sympo Earth Tides 被引量:1

同被引文献210

引证文献20

二级引证文献112

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈