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DOI | 10.1029/2021GL097143 |
Electromagnetic Ion Cyclotron Harmonic Waves Generated via Nonlinear Wave-Wave couplings | |
Dan Deng; Zhigang Yuan; Shiyong Huang; Zuxiang Xue; Zheng Huang; Xiongdong Yu | |
2022-01-28 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | In this letter, we report an electromagnetic ion cyclotron (EMIC) harmonic event observed by the Van Allen Probe B, whose generation is demonstrated to result from nonlinear wave-wave resonances through the bicoherence analysis. Hybrid simulation shows that the second to sixth harmonics could be excited in sequence after a pump EMIC wave is initially injected, which is in consistent with the observations of EMIC harmonic. It indicates the important role of the second harmonic in the generation of higher harmonics. Finally, the statistical distribution for the amplitude of EMIC second harmonic waves indicates that the energy transfer rate from the fundamental wave to the second harmonic is mainly less than 2%, which might be too low to result in third and other higher harmonics above the observational level. Our results will give some new insights into the excitation of EMIC harmonic waves in the inner magnetosphere. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/346077 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Dan Deng,Zhigang Yuan,Shiyong Huang,et al. Electromagnetic Ion Cyclotron Harmonic Waves Generated via Nonlinear Wave-Wave couplings[J]. Geophysical Research Letters,2022. |
APA | Dan Deng,Zhigang Yuan,Shiyong Huang,Zuxiang Xue,Zheng Huang,&Xiongdong Yu.(2022).Electromagnetic Ion Cyclotron Harmonic Waves Generated via Nonlinear Wave-Wave couplings.Geophysical Research Letters. |
MLA | Dan Deng,et al."Electromagnetic Ion Cyclotron Harmonic Waves Generated via Nonlinear Wave-Wave couplings".Geophysical Research Letters (2022). |
条目包含的文件 | 条目无相关文件。 |
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