An observation-based GCR model of heavy nuclei: Measurements from CRIS onboard ACE spacecraft

	An observation-based GCR model of heavy nuclei: Measurements from CRIS onboard ACE spacecraft
	L.-L. Zhao ; G. Qin
刊名	Journal of Geophysical Research: Space Physics
	2013
卷号	118 期号:5 页码:1837-1848
关键词	cosmic ray heavy nuclei ACE/CRIS GCR model
ISSN号	2169-9402
通讯作者	北京8701信箱
中文摘要	We 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.
学科主题	空间物理
语种	英语
内容类型	期刊论文
源URL	[http://ir.cssar.ac.cn/handle/122/1530]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	L.-L. Zhao,G. Qin. 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.(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.