Data assimilation retrieval of electron density profiles from radio occultation measurements | |
Yue, Xinan1; Schreiner, William S.1; Lin, Yu-Cheng1; Rocken, Christian1; Kuo, Ying-Hwa1; Zhao, Biqiang2 | |
刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
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2011-03-23 | |
卷号 | 116 |
ISSN号 | 0148-0227 |
DOI | 10.1029/2010JA015980 |
文献子类 | Article |
英文摘要 | In this paper, the Kalman filter is used to retrieve the electron density profile along the tangent points by assimilating the slant total electron content data observed during a radio occultation (RO) event into an empirical background model. The RO data observed by COSMIC satellites on day of year 266 in 2009 are selected to do both the simulation work and the real data retrieval test. The results show that the data assimilation technique can improve the electron density retrieval in comparison with the Abel inversion. It is less influenced by the ionospheric inhomogeneity than the Abel method. Some pseudo-large-scale features made by the Abel retrieval, such as the plasma cave underneath the equatorial ionization anomaly region and the three peaks along the latitude direction in the E layer, disappear in the data assimilation retrieval results. Independent validation by ground-based ionosonde observations confirms the improvement of data assimilation retrieval below the F(2) peak. In addition, some potential research on RO data assimilation is also discussed. |
WOS关键词 | IONOSPHERIC MODEL ; ABEL INVERSION ; GPS ; SYSTEM ; IMPROVEMENT ; VALIDATION ; CHAMP ; IRI |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000288872800004 |
资助机构 | U.S. Air Force via the National Science Foundation(AGS-0918398/CSA AGS-0961147) ; U.S. Air Force via the National Science Foundation(AGS-0918398/CSA AGS-0961147) ; National Science Foundation of China(40904037) ; National Science Foundation of China(40904037) ; SOA Key Laboratory for Polar Science in China(KP2008009) ; SOA Key Laboratory for Polar Science in China(KP2008009) ; U.S. Air Force via the National Science Foundation(AGS-0918398/CSA AGS-0961147) ; U.S. Air Force via the National Science Foundation(AGS-0918398/CSA AGS-0961147) ; National Science Foundation of China(40904037) ; National Science Foundation of China(40904037) ; SOA Key Laboratory for Polar Science in China(KP2008009) ; SOA Key Laboratory for Polar Science in China(KP2008009) ; U.S. Air Force via the National Science Foundation(AGS-0918398/CSA AGS-0961147) ; U.S. Air Force via the National Science Foundation(AGS-0918398/CSA AGS-0961147) ; National Science Foundation of China(40904037) ; National Science Foundation of China(40904037) ; SOA Key Laboratory for Polar Science in China(KP2008009) ; SOA Key Laboratory for Polar Science in China(KP2008009) ; U.S. Air Force via the National Science Foundation(AGS-0918398/CSA AGS-0961147) ; U.S. Air Force via the National Science Foundation(AGS-0918398/CSA AGS-0961147) ; National Science Foundation of China(40904037) ; National Science Foundation of China(40904037) ; SOA Key Laboratory for Polar Science in China(KP2008009) ; SOA Key Laboratory for Polar Science in China(KP2008009) |
内容类型 | 期刊论文 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/73890] ![]() |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Yue, Xinan |
作者单位 | 1.Univ Corp Atmospher Res, COSMIC Program Off, Boulder, CO 80307 USA 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Yue, Xinan,Schreiner, William S.,Lin, Yu-Cheng,et al. Data assimilation retrieval of electron density profiles from radio occultation measurements[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2011,116. |
APA | Yue, Xinan,Schreiner, William S.,Lin, Yu-Cheng,Rocken, Christian,Kuo, Ying-Hwa,&Zhao, Biqiang.(2011).Data assimilation retrieval of electron density profiles from radio occultation measurements.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,116. |
MLA | Yue, Xinan,et al."Data assimilation retrieval of electron density profiles from radio occultation measurements".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116(2011). |
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