题名: Inferring electromagnetic ion cyclotron wave intensity from low altitude POES proton flux measurements: A detailed case study with conjugate Van Allen Probes observations 作者: Zhang, Yang Shi, Run Ni, Binbin Gu, Xudong Zhang, Xianguo Zuo, Pingbing Fu, Song Xiang, Zheng Wang, Qi Cao, Xing Zou, Zhengyang 作者部门: 空间环境部
通讯作者: Shi, Run (runshi@whu.edu.cn)
刊名: Advances in Space Research
ISSN号: 0273-1177
出版日期: 2017
收录类别: EI
英文摘要: Electromagnetic ion cyclotron (EMIC) waves play an important role in the magnetospheric particle dynamics and can lead to resonant pitch-angle scattering and ultimate precipitation of ring current protons. Commonly, the statistics of in situ EMIC wave measurements is adopted for quantitative investigation of wave-particle interaction processes, which however becomes questionable for detailed case studies especially during geomagnetic storms and substorms. Here we establish a novel technique to infer EMIC wave amplitudes from low-altitude proton measurements onboard the Polar Operational Environmental Satellites (POES). The detailed procedure is elaborated regarding how to infer the EMIC wave intensity for one specific time point. We then test the technique with a case study comparing the inferred root-mean-square (RMS) EMIC wave amplitude with the conjugate Van Allen Probes EMFISIS wave measurements. Our results suggest that the developed technique can reasonably estimate EMIC wave intensities from low-altitude POES proton flux data, thereby providing a useful tool to construct a data-based, near-real-time, dynamic model of the global distribution of EMIC waves once the proton flux measurements from multiple POES satellites are available for any specific time period. © 2017 COSPAR. 语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/5731
Appears in Collections: 空间环境部_期刊论文
File Name/ File Size
Content Type
Version
Access
License
2017591568-1576.pdf （1489KB） 期刊论文 作者接受稿 限制开放 View 联系获取全文
