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A comparison of Neutral Atom Detector Unit neutral atom image inversion with a comprehensive ring current model
Tang, C. L.; Lu, L.; McKenna-Lawlor, S.; Barabash, S.; Liu, Z. X.; Fok, M. C.; Li, Z. Y.; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationJournal of Geophysical Research-Space Physics
2008
Volume113Issue:A7Pages:A07S32
ISSN0148-0227
Language英语
KeywordMagnetic-field Plasma Sheet Distributions Simulation Substorms Ena
AbstractWe present energetic neutral atom (ENA) images in the energy range 45 to 50 keV for H and 92 to 138 keV for O measured by the Neutral Atom Detector Unit (NUADU) onboard Double Star TC-2 during a geomagnetic storm on 8 May 2005. We compare the ion fluxes deduced from inversion of the NUADU image with those calculated using the Comprehensive Ring Current Model (CRCM). This comparison shows that the two approaches are consistent when used to derive the configuration of the corresponding global ion distribution and the peak ion fluxes. The deduced peak ion flux is located in the premidnight sector at 1540 UT, while the deduced ion peak flux is located in the midnight sector at 1610 UT. There are strong ion fluxes in the region between L = 2 and L = 4 which form a closed loop configuration. The ion peak flux is about 2.2 x 10(6)/cm(2)/sr/keV/s. The deduced ion distribution agrees well with the NUADU measurement. The agreement between the inverted ion distributions and the CRCM results give us confidence in applying our ENA imaging and modeling techniques to the study of the evolution of the inner magnetosphere plasma distribution and the global dynamics of the ring current during magnetic storms.
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/122/1106
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Tang, C. L.,Lu, L.,McKenna-Lawlor, S.,et al. A comparison of Neutral Atom Detector Unit neutral atom image inversion with a comprehensive ring current model[J]. Journal of Geophysical Research-Space Physics,2008,113(A7):A07S32.
APA Tang, C. L..,Lu, L..,McKenna-Lawlor, S..,Barabash, S..,Liu, Z. X..,...&北京8701信箱.(2008).A comparison of Neutral Atom Detector Unit neutral atom image inversion with a comprehensive ring current model.Journal of Geophysical Research-Space Physics,113(A7),A07S32.
MLA Tang, C. L.,et al."A comparison of Neutral Atom Detector Unit neutral atom image inversion with a comprehensive ring current model".Journal of Geophysical Research-Space Physics 113.A7(2008):A07S32.
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