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An observation-based GCR model of heavy nuclei: Measurements from CRIS onboard ACE spacecraft
L.-L. Zhao; G. Qin; 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
2013
Volume118Issue:5Pages:1837-1848
ISSN2169-9402
Language英语
KeywordCosmic Ray Heavy Nuclei Ace/cris Gcr Model
AbstractWe present an observation-based elemental Galactic Cosmic Ray (GCR) heavy nuclei spectra model, based on ACE/CRIS measurements. Then we extrapolate the spectra model to the lower energy range of ACE/SIS instrument. In addition, we compare the modeling results with both the CRIS and SIS measurements. The flux of lower energetic particles measured by SIS are despiked since there are Solar Energetic Particle (SEP) events. The good agreement between the modeling and the observation results, especially for the solar minimum, indicates the validity of our model in the energy range 30–500 MeV/nuc. Compared with two GCR radiation environment models, CRÈME96/Nymmik model and Badhwar & O'Neill model, our model can provide an improved fit to the GCRs spectra measured by ACE. Furthermore, our model is a phenomenological one, without consideration of the physical process during GCRs' propagating through the heliosphere. Therefore, it is more straightforward and applicable in practice. Finally, the model can reproduce and predict the GCR spectra in the past and future, respectively, based on the strong correlation between the model parameters and solar activity indicated by sunspot number.
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/122/1530
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
L.-L. Zhao,G. Qin,北京8701信箱. An observation-based GCR model of heavy nuclei: Measurements from CRIS onboard ACE spacecraft[J]. Journal of Geophysical Research: Space Physics,2013,118(5):1837-1848.
APA L.-L. Zhao,G. Qin,&北京8701信箱.(2013).An observation-based GCR model of heavy nuclei: Measurements from CRIS onboard ACE spacecraft.Journal of Geophysical Research: Space Physics,118(5),1837-1848.
MLA L.-L. Zhao,et al."An observation-based GCR model of heavy nuclei: Measurements from CRIS onboard ACE spacecraft".Journal of Geophysical Research: Space Physics 118.5(2013):1837-1848.
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