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DOI | 10.1029/2020GL087837 |
Parallel Electrostatic Waves Associated with Turbulent Plasma Mixing in the Kelvin‐Helmholtz Instability | |
F. D. Wilder; S. J. Schwartz; R. E. Ergun; S. Eriksson; N. Ahmadi; A. Chasapis; D. L. Newman; J. L. Burch; R. B. Torbert; R. J. Strangeway; B. L. Giles | |
2020-06-20 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | The Kelvin‐Helmholtz Instability (KHI) is thought to be an important driver of mass and momentum transfer from the solar wind to the Earth's magnetosphere. We present observations from NASA's Magnetospheric Multi‐scale mission of ion acoustic‐like waves associated with turbulence during the KHI interval on 8 September 2015. These parallel electrostatic waves are non‐linear, can have amplitudes in excess of 100 mV/m, and may be associated with a field‐aligned potential drop. We perform a survey of all vortices in the 8 September 2015 event, investigating the occurrence of electrostatic waves below the ion plasma frequency. We find that they tend to occur in the turbulent region in the middle of the KHI vortices, independent of the presence of compressed or intermittent currents. This suggests that the waves occur in the presence of plasma mixing in the vortex region, and that they may play a part in the overall turbulent dissipation process. |
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/276606 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | F. D. Wilder,S. J. Schwartz,R. E. Ergun,等. Parallel Electrostatic Waves Associated with Turbulent Plasma Mixing in the Kelvin‐Helmholtz Instability[J]. Geophysical Research Letters,2020. |
APA | F. D. Wilder.,S. J. Schwartz.,R. E. Ergun.,S. Eriksson.,N. Ahmadi.,...&B. L. Giles.(2020).Parallel Electrostatic Waves Associated with Turbulent Plasma Mixing in the Kelvin‐Helmholtz Instability.Geophysical Research Letters. |
MLA | F. D. Wilder,et al."Parallel Electrostatic Waves Associated with Turbulent Plasma Mixing in the Kelvin‐Helmholtz Instability".Geophysical Research Letters (2020). |
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