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Nonstorm time dynamics of electron radiation belts observed by the Van Allen Probes
Su, Zhenpeng; Xiao, Fuliang; Zheng, Huinan; He, Zhaoguo; Zhu, Hui; Zhang, Min; Shen, Chao; Wang, Yuming; Wang, Shui; Kletzing, C. A.; Kurth, W. S.; Hospodarsky, G. B.; Spence, H. E.; Reeves, G. D.; Funsten, H. O.; Blake, J. B.; Baker, D. N.; Su, ZP (reprint author), Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China.
Department空间环境部
Source PublicationGEOPHYSICAL RESEARCH LETTERS
2014
Volume41Issue:2Pages:229-235
ISSN0094-8276
Language英语
KeywordElectron Radiation Belt Relativistic Electron Acceleration Wave-particle Interaction Chorus Wave Van Allen Probes Quasi-linear Simulation
AbstractStorm time electron radiation belt dynamics have been widely investigated for many years. Here we present a rarely reported nonstorm time event of electron radiation belt evolution observed by the Van Allen Probes during 21-24 February 2013. Within 2 days, a new belt centering around L=5.8 formed and gradually merged with the original outer belt, with the enhancement of relativistic electron fluxes by a factor of up to 50. Strong chorus waves (with power spectral density up to 10(-4)nT(2)/Hz) occurred in the region L>5. Taking into account the local acceleration driven by these chorus waves, the two-dimensional STEERB can approximately reproduce the observed energy spectrums at the center of the new belt. These results clearly illustrate the complexity of electron radiation belt behaviors and the importance of chorus-driven local acceleration even during the nonstorm times. Key Points A rarely reported nonstorm time event of RB reformation observed by RBSP Formation of a new belt near the outer boundary of the original outer belt Importance of chorus-driven local acceleration: observation and simulation
Indexed BySCI ; EI
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/122/2735
Collection空间科学部
Corresponding AuthorSu, ZP (reprint author), Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China.
Recommended Citation
GB/T 7714
Su, Zhenpeng,Xiao, Fuliang,Zheng, Huinan,et al. Nonstorm time dynamics of electron radiation belts observed by the Van Allen Probes[J]. GEOPHYSICAL RESEARCH LETTERS,2014,41(2):229-235.
APA Su, Zhenpeng.,Xiao, Fuliang.,Zheng, Huinan.,He, Zhaoguo.,Zhu, Hui.,...&Su, ZP .(2014).Nonstorm time dynamics of electron radiation belts observed by the Van Allen Probes.GEOPHYSICAL RESEARCH LETTERS,41(2),229-235.
MLA Su, Zhenpeng,et al."Nonstorm time dynamics of electron radiation belts observed by the Van Allen Probes".GEOPHYSICAL RESEARCH LETTERS 41.2(2014):229-235.
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