| 厦门电离层垂测仪电子浓度剖面最优插值同化的初步建立 |
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| 引用本文： | 王勇,林兆祥,余涛.厦门电离层垂测仪电子浓度剖面最优插值同化的初步建立[J].空间科学学报,2011,31(6):771-777. |
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| 作者姓名： | 王勇 林兆祥 余涛 |
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| 作者单位： | 1.中南民族大学电信学院 武汉, 430074 |
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| 基金项目： | 国家自然科学基金项目资助(40974094) |
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| 摘 要： | 最优插值(Optimal Interpolation, OI)同化是一种利用最小二乘法使分析误差方差极小化的方法. 提出并建立了一种电离层一维剖面最优插值的同化方法. 借鉴及参考气象的同化方法, 基于最优插值方法, 采用厦门电离层垂测仪2009年6至8月观测数据和一维电离层理论模式(IGGCAS1D)背景值来构建误差协方差, 并进行同化试验和分析预报. 结果表明方法可靠, 没有出现同化时背景数据与观测数据偏离较大的问题, 同化后所得结果与观测数据符合较好.
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| 关 键 词： | 最优插值同化 垂测仪 同化试验 分析预报 |
| 收稿时间： | 2011-01-14 |
An OI-based Assimilation Method of Vertical Ionospheric Electron Density Profile Over Xiamen |
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| WANG Yong LIN Zhaoxiang YU Tao.An OI-based Assimilation Method of Vertical Ionospheric Electron Density Profile Over Xiamen[J].Chinese Journal of Space Science,2011,31(6):771-777. |
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| Authors: | WANG Yong LIN Zhaoxiang YU Tao |
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| Institution: | 1.College of Electronics and Information Engineering, South-Central University for Nationalities, Wuhan 4300742.National Center for Space Weather, Beijing 100081 |
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| Abstract: | By comparing the development of data assimilation in meteorology,Optimal Interpolation (OI) assimilation in one-dimension ionosphere is introduced.01 assimilation is a method that minimizes error variance of analysis by non-linear least-squares.Based on IGGCAS1D(Institute of Geology and Geophysics,Chinese Academy of Sciences 1 Dimension) model and Xiamen digital ionosondc observations,OI assimilation has been validated by simulation experiments.The detailed information of observations is that,11:00 UT 15 Ju... |
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| Keywords: | Optimal Interpolation(OI) assimilation Ionosonde Assimilation experiments Residual prediction |
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