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DOI | 10.1002/2017GL074743 |
Aspect dependence of Langmuir parametric instability excitation observed by EISCAT | |
Wang, Xiang; Zhou, Chen | |
2017-09-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:18 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Recent studies of X-mode wave heating experiments observed by EISCAT (European Incoherent Scatter Scientific Association UHF radar indicate that parametric instability (PI) can be excited unexpectedly. In this paper, we reinvestigate the ionospheric heating experiment on 21 and 22 October 2012 in details. The observed HF-enhanced ion lines (HFILs) and HF-enhanced plasma lines (HFPLs) observed during the experiments present dependence on the heating incidence angles. The observational evidence and numerical calculation that the parallel electric field of X-mode heating wave can exceed the PI excitation threshold at certain angles indicate the decisive role of parallel electric field for the PI excitation. The excited HFPLs and HFILs during X-mode heating cycles also present the evidence for the non-Maxwellian distribution of the electrons in the heated region. |
英文关键词 | aspect dependence parametric instability extraordinary polarized EM wave EISCAT |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413148100002 |
WOS关键词 | IONOSPHERIC MODIFICATION ; ELECTROMAGNETIC-WAVE ; 1ST OBSERVATIONS ; PLASMA ; TURBULENCE ; ENHANCEMENTS ; AIRGLOW |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/26892 |
专题 | 气候变化 |
作者单位 | Wuhan Univ, Sch Elect Informat, Dept Space Phys, Wuhan, Hubei, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Xiang,Zhou, Chen. Aspect dependence of Langmuir parametric instability excitation observed by EISCAT[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(18). |
APA | Wang, Xiang,&Zhou, Chen.(2017).Aspect dependence of Langmuir parametric instability excitation observed by EISCAT.GEOPHYSICAL RESEARCH LETTERS,44(18). |
MLA | Wang, Xiang,et al."Aspect dependence of Langmuir parametric instability excitation observed by EISCAT".GEOPHYSICAL RESEARCH LETTERS 44.18(2017). |
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