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| 多源数据推求的西太平洋区域海面动力地形比较分析 | |
| 引用本文： | 张子占,马海青,陆洋.多源数据推求的西太平洋区域海面动力地形比较分析[J].海洋测绘,2007,27(5):4-7. |
| 作者姓名： | 张子占 马海青 陆洋 |
| 作者单位： | 1. 中国科学院,测量与地球物理研究所,湖北,武汉,430077;中国科学院研究生院,北京,100049 2. 山东省莘县职业中等专业学校,山东,莘县,252400 3. 中国科学院,测量与地球物理研究所,湖北,武汉,430077 |
| 基金项目： | 国家自然科学基金 , 国家高技术研究发展计划(863计划) |
| 摘 要： | 简述利用空间大地测量观测数据和海洋水文数据推求海面动力地形的方法。基于EGM96重力场模型和卫星重力恢复的重力场模型GL04C,联合卫星测高平均海面高模型分别推算西太平洋海域的平均海面动力地形,并与根据海洋水文数据推算之结果进行比较分析。结果表明:卫星重力场模型GL04C更好地表现了海面地形的细节特征。卫星重力和卫星测高的联合应用将成为确定海面动力地形的有效途径之一。 |
| 关 键 词： | 卫星重力 卫星测高 海洋水文 海面动力地形 |
| 文章编号： | 1671-3044（2007）05-0004-04 |
| 修稿时间： | 2007-04-17 |
Comparative Analysis of the Dynamic Ocean Topography Over theWestern Pacific Derived From Multi-Source Data |
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| ZHANG Zi-zhan,MA Hai-qing,LU Yang.Comparative Analysis of the Dynamic Ocean Topography Over theWestern Pacific Derived From Multi-Source Data[J].Hydrographic Surveying and Charting,2007,27(5):4-7. | |
| Authors: | ZHANG Zi-zhan MA Hai-qing LU Yang |
| Institution: | 1. Key Laboratory of Dynamic Geodesy ,Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan , Hubei ,430077 ; 2.Graduate School of the Chinese Academy of Sciences, Beijing, 100049 ; 3. Shenxian Vocational School, Shenxian, Shandong ,252400 |
| Abstract: | Methods for estimating the dynamic ocean topography(DOT) using space geodesy observational data and ocean hydrological data were presented briefly.Combining a sea surface height model(KMSS04),two mean DOT models over the western Pacific are calculated separately based on the EGM96 gravity field model and GL04C model recovered from satellite gravimetry data.Comparisons of these two DOT models derived from altimetry and geoid with a DOT model from WOA01 data show that the DOT model from EIGEN-GL04C displays more details than the others.Joint applications of satellite gravity and satellite altimetry will be one of the most important approaches to determine the DOT. |
| Keywords: | satellite gravity satellite altimetry ocean hydrology dynamic ocean topography |
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