潮汐模型对利用卫星测高数据研究海平面变化的影响

许军; 暴景阳; 刘雁春

潮汐模型对利用卫星测高数据研究海平面变化的影响

¹ 大连舰艇学院海洋与测绘科学系,大连市解放路667号,116018;² 国家海洋局第一海洋研究所,青岛市高新园区仙霞岭路6号,266061

基金项目: 地球空间环境与大地测量教育部重点实验室开放研究基金资助项目(03-04-061469990324233-04-03);国家测绘局测绘科技发展基金资助项目(2001-01-02(214151926))

详细信息

作者简介:
许军,硕士生。现主要从事卫星测高数据的处理及应用。

中图分类号: P228.42;P229.2
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- 文章访问数: 1164
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出版历程
- 收稿日期: 2006-03-09
- 修回日期: 2006-03-09
- 发布日期: 2006-06-04

Influence of Tide Model on Mean Sea Level Variation Using Altimetry Data

¹ Department of Hydrography and Cartography,Dalian Naval Academy,667 Jiefang Road,Dalian 116018,China; ² First Institute of Oceanography,State Oceanic Administration,6 Xianxialing Road,Qingdao 266061,China

Funds: 地球空间环境与大地测量教育部重点实验室开放研究基金资助项目(03-04-061469990324233-04-03);国家测绘局测绘科技发展基金资助项目(2001-01-02(214151926))

摘要

摘要: 利用T/P测高数据反演了中国近海及西北太平洋海域的潮汐参数,构造了CSR3.0、FES95.2和T/P反演的海潮模型改正下的海面高时间序列,通过海面高变化曲线及功率谱的比较确定了利用测高数据发现的海平面季节内变化主要是潮汐模型误差的贡献。
- 卫星测高 /
- 海平面变化 /
- 潮汐模型 /
- 潮汐混叠
Abstract: Variations of sea surface height in the Yellow Sea, East China Sea,South China Sea and Northwest Pacific have been obtained from TOPEX/Poseidon altimetry data corrected by CSR3.0,FES95.2 and the tide model established by authors respectively.It is shown by spectral analyses that sea level variations corrected by CSR3.0 and FES95.2 contain major components which are dominated by the annual and alias periods of principal tides constituent under T/P sampling.Nevertheless,sea level variations corrected by the tide model established by authors represent characteristic of non-tidal effects which means that tidal and non-tidal variations have been segregated correctly.And Fourier analysis shows that power spectral density is in proportion to deviation of CSR3.0 and FES95.2 compared with the tide model established by authors,which verifies the tidal aliasing is the mechanism of major components.In shallow area where the precision of the global tide models is lower,such as the seas adjacent to China,error of the tide models is higher than the real rule of variations of sea surface height in magnitude.Thus particular attention should be paid to the precision of the tide model in calculating variations of sea surface height.
- satellite altimetry /
- variation of sea surface height /
- tide model /
- tidal aliasing

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文章访问数: 1164
HTML全文浏览量: 96
PDF下载量: 417
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潮汐模型对利用卫星测高数据研究海平面变化的影响

作者简介: 许军,硕士生。现主要从事卫星测高数据的处理及应用。

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出版历程

Influence of Tide Model on Mean Sea Level Variation Using Altimetry Data

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出版历程

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作者简介:
许军,硕士生。现主要从事卫星测高数据的处理及应用。