GSTDTAP  > 气候变化
DOI10.1029/2021GL092850
Evidence of Small Scale Plasma Irregularity Effects on Whistler Mode Chorus Propagation
Poorya Hosseini; Oleksiy Agapitov; Vijay Harid; Mark Goł; kowski
2021-02-16
发表期刊Geophysical Research Letters
出版年2021
英文摘要

The impact of randomly distributed field‐aligned density irregularities on whistler‐mode wave propagation is investigated using full‐wave simulations and multi‐point spacecraft observations. The irregularities are modeled as randomized density perturbations between 1‐10% of the nominal background density value with scales of ∼10‐60 km transverse and ∼50‐500 km along the background magnetic field. The density irregularities affect whistler wave propagation and lead to spatial modulation of wave average power density accompanied by spreading of the wave normal angle distribution. Wave power variation is shown to statistically increase with the depth of density irregularities. The simulation results are in good agreement with the observed correlations of chorus power and variation of the plasma density from multi‐point observations by the four MMS spacecraft. The change in fundamental wave properties from scattering from these irregularities affects the efficiency of wave‐particle interactions in the radiation belts and needs to be incorporated into large‐scale energetic‐particle flux models.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/315678
专题气候变化
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GB/T 7714
Poorya Hosseini,Oleksiy Agapitov,Vijay Harid,et al. Evidence of Small Scale Plasma Irregularity Effects on Whistler Mode Chorus Propagation[J]. Geophysical Research Letters,2021.
APA Poorya Hosseini,Oleksiy Agapitov,Vijay Harid,Mark Goł,&kowski.(2021).Evidence of Small Scale Plasma Irregularity Effects on Whistler Mode Chorus Propagation.Geophysical Research Letters.
MLA Poorya Hosseini,et al."Evidence of Small Scale Plasma Irregularity Effects on Whistler Mode Chorus Propagation".Geophysical Research Letters (2021).
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