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Alternative TitleInversion Algorithms and Precision Analysis of ROPP
王大钊; 白伟华; 孙越强; 孟祥广; 王冬伟; 李伟
Source Publication空间科学学报
Keyword无线电掩星 折射率 大气参数
Abstract介绍了ROPP反演软件中无线电掩星反演的算法与精度分析.采用COSMIC卫星2008年1月1日全天的附加相位数据,反演得到折射率、温度、压强与湿度等参数,并与CDAAC相应结果进行对比.实验结果表明,在30 km高度以下,折射率、压强和湿度的相对误差在2%以内,温度误差不超过2K.
Other AbstractThe unique combination of global coverage, high precision, high vertical resolution, long-term stability and all-weather viewing of radio occultation will enhance the data sets of numerical weather prediction and improve the precision of Numeric Weather Prediction (NWP). And data assimilation requires preprocessing of the raw radio signals into the bending angles and refractivity. Then the atmospheric parameters such as temperature, pressure and humidity can be retrieved through data variational assimilation. The procedures for processing of radio occultation data, especially several important steps are introduced. And comparative analysis between these results and those from CDAAC shows that below the altitude of 30 km, the relative errors of refractivity, pressure and humidity are within 2% and the deviation of temperature is below 2K. The results are also compared with the data from ERA-interim model of ECMWF and similar conclusion is obtained.
Indexed ByCSCD
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Document Type期刊论文
Recommended Citation
GB/T 7714
王大钊,白伟华,孙越强,等. ROPP反演软件算法及其精度分析[J]. 空间科学学报,2015,35(3):350-355.
APA 王大钊,白伟华,孙越强,孟祥广,王冬伟,&李伟.(2015).ROPP反演软件算法及其精度分析.空间科学学报,35(3),350-355.
MLA 王大钊,et al."ROPP反演软件算法及其精度分析".空间科学学报 35.3(2015):350-355.
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