| 联合测高重力异常与ETOPO5海深数据求解南海海深模型 |
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| 引用本文： | 聂琳娟,吴云孙,金涛勇,超能芳. 联合测高重力异常与ETOPO5海深数据求解南海海深模型[J]. 湖北民族学院学报(自然科学版), 2011, 0(2) |
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| 作者姓名： | 聂琳娟 吴云孙 金涛勇 超能芳 |
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| 作者单位： | 武汉大学测绘学院;湖北水利水电职业技术学院; |
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| 基金项目： | 国家自然科学基金项目(41074014); 湖北省高等学校青年教师深入企业行动计划项目(XD2010461) |
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| 摘 要： | 利用卫星测高重力异常,基于非补偿板块模型,反演了南海海域海底地形.考虑向下延拓容易导致的高频分量剧烈震荡,引入统计学中的统计相关理论,采用线性回归模型,对得到的海深模型进行了新的计算,反演结果与LDEO船测深数据相比较,两者之差的RMS为253.3m,较ETOPO5海深模型精度和分辨率均有明显的提高.
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| 关 键 词： | 卫星测高 ETOPO5 重力异常 海底地形 |
Solution of the Ocean Depth Model for the South China Sea by Combining Gravity Altimetry and ETOPO5 Deep-sea Data |
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| NIE Lin-juan,,WU Yun-sun,JIN Tao-yong,CHAO Neng-fang .School of Geodesy , Geomatics,Wuhan University,Wuhan ,China,.Hubei Water Resources Technical College,Wuhan ,China). Solution of the Ocean Depth Model for the South China Sea by Combining Gravity Altimetry and ETOPO5 Deep-sea Data[J]. Journal of Hubei Institute for Nationalities(Natural Sciences), 2011, 0(2) |
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| Authors: | NIE Lin-juan WU Yun-sun JIN Tao-yong CHAO Neng-fang .School of Geodesy Geomatics Wuhan University Wuhan China .Hubei Water Resources Technical College Wuhan China) |
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| Affiliation: | NIE Lin-juan1,2,WU Yun-sun1,JIN Tao-yong1,CHAO Neng-fang1 1.School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China,2.Hubei Water Resources Technical College,Wuhan 430070,China) |
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| Abstract: | Based on the uncompensated plate model,the ocean depth model for the South China Sea is predicted with the recovered gravity anomalies from satellite altimeter data.Because of the downward continuation problem,the high frequency components of the resulting ocean depth appear highly oscillatory,therefore,according to stochastic correlation theory,a regression model is adopted to reprocess the results computed by Watts model,and a better effect is achieved. |
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| Keywords: | satellite altimetry ETOPO5 gravity anomalies submarine topography |
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