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DOI | 10.1029/2021GL092902 |
A comparative study on the distributions of incoherent and coherent plasmaspheric hiss | |
Zhaoguo He; Jiang Yu; Kun Li; Nigang Liu; Zewen Chen; Jun Cui | |
2021-03-22 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | We perform a comparative study on the distributions of incoherent and coherent plasmaspheric hiss, based on the Van Allen Probe data. The statistics show that incoherent hiss ( ∼10–20 pT) is widely distributed in dayside plasmasphere, with peak frequencies below 500 Hz; intense coherent hiss (amplitudes up to 80 pT) occurs in outer plasmasphere of L > 4 (L denotes the L‐shell.), whose frequency increases with ambient magnetic field significantly. The Poynting flux analysis indicates that incoherent hiss generally propagates omni‐directionally inside the plasmasphere, with features of external sources; the coherent hiss propagates away from the equatorial region in outer plasmasphere and has a reversed direction in inner plasmasphere, indicating two different wave sources by local generation and ducted lightning generated whistler (LGW) respectively. This comparative study helps us to better understand the origination of plasmaspheric hiss. This article is protected by copyright. All rights reserved. |
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/321038 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Zhaoguo He,Jiang Yu,Kun Li,et al. A comparative study on the distributions of incoherent and coherent plasmaspheric hiss[J]. Geophysical Research Letters,2021. |
APA | Zhaoguo He,Jiang Yu,Kun Li,Nigang Liu,Zewen Chen,&Jun Cui.(2021).A comparative study on the distributions of incoherent and coherent plasmaspheric hiss.Geophysical Research Letters. |
MLA | Zhaoguo He,et al."A comparative study on the distributions of incoherent and coherent plasmaspheric hiss".Geophysical Research Letters (2021). |
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