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Iterative inversion of global magnetospheric information from energy neutral atom (ENA) images recorded by the TC-2/NUADU instrument
Lu L(路立); McKenna-Lawlor, S.; Barabash, S.; Balaz, J.; Liu ZX(刘振兴); Shen C(沈超); Cao JB(曹晋宾); Tang, C. L.; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationScience in China Series E-Technological Sciences
2008
Volume51Issue:10Pages:1731-1744
ISSN1006-9321
Language英语
KeywordEnergetic Neutral Atom (Ena) Ring Current Magnetospheric Ions Exospheric Neutral Density Ring Current Ion Distributions
AbstractA method is presented for retrieving the magnetospheric ion distribution from Energetic Neutral Atom (ENA) measurements made by the NUADU instrument on the TC-2 spacecraft. Based on the already well-established method of constrained linear inversion, an iterance technique suitable for the low count ENA measurements has been developed which is tolerant of the noise background. By the iterance technique, it is possible for the first time to simultaneously retrieve the magnetospheric ion distribution and the exospheric neutral density, and further to recover global ENA emissions in three dimensions. The technique is applied to a representative ENA image recorded in energy channel 2 (protons: 50-81 keV) of the NUADU instrument during a major geomagnetic storm and it is, thereby, shown that the retrieval method developed provides a useful tool for extracting ion distribution information from ENA data.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1138
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Lu L,McKenna-Lawlor, S.,Barabash, S.,et al. Iterative inversion of global magnetospheric information from energy neutral atom (ENA) images recorded by the TC-2/NUADU instrument[J]. Science in China Series E-Technological Sciences,2008,51(10):1731-1744.
APA 路立.,McKenna-Lawlor, S..,Barabash, S..,Balaz, J..,刘振兴.,...&北京8701信箱.(2008).Iterative inversion of global magnetospheric information from energy neutral atom (ENA) images recorded by the TC-2/NUADU instrument.Science in China Series E-Technological Sciences,51(10),1731-1744.
MLA 路立,et al."Iterative inversion of global magnetospheric information from energy neutral atom (ENA) images recorded by the TC-2/NUADU instrument".Science in China Series E-Technological Sciences 51.10(2008):1731-1744.
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