Role of Low-Frequency Boundary Waves in the Dynamics of the Dayside Magnetopause and the Inner Magnetosphere
Role of Low-Frequency Boundary Waves in the Dynamics of the Dayside Magnetopause and the Inner Magnetosphere
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DOI：
10.1002/9781119055006.ch13
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发表时间：
2014-09
影响因子：
--
通讯作者：
K. Hwang;D. Sibeck
中科院分区：
文献类型：
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作者：
K. Hwang;D. Sibeck
本章回顾了低频波在磁层顶和内磁层动力学中的作用，重点关注那些经常同时或相继发生在这两个区域的波。作者根据提出的能够将外边界波（上游弓激波起源或磁层顶振荡）与内磁层波联系起来的机制来组织本章：全局模式； KH 波/涡流；太阳风或弓激波起源的扰动；以及重新连接/FTE 驱动的流程。与本章讨论的腔和波导模式的情况一样，由于难以分离各种内部和外部 FLR 触发器，并且难以正确确定基频，因此 KH 驱动的全局模式及其与 FLR 的耦合的检测相当困难。本章解释了弓激波处理或磁鞘中产生的低频波如何影响磁层顶和内磁层。
This chapter reviews the role of the low‐frequency waves in the dynamics of the magnetopause and the inner magnetosphere, focusing on those waves often simultaneously or subsequently occurring in the two regions. The authors organize the chapter in terms of proposed mechanisms capable of linking outer boundary waves (upstream bow shock‐origin or magnetopause oscillations) to inner magnetospheric waves: global modes; KH waves/vortices; solar wind or bow‐shock‐origin perturbations; and reconnection/FTE‐driven processes. As in the case of cavity and waveguide modes discussed in the chapter, the detection of KH‐driven global mode and its coupling to FLRs is rather evasive due to the difficulty in separating various internal and external FLR triggers, together with the difficulty in correctly determining fundamental frequencies. The chapter explains how low‐frequency waves processed by the bow shock or generated in the magnetosheath impact the magnetopause and the inner magnetosphere.