Diffuse and Pulsating Aurora
Diffuse and Pulsating Aurora
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DOI：
10.1007/s11214-019-0629-3
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发表时间：
2020-01
影响因子：
10.3
通讯作者：
Y. Nishimura;M. Lessard;Y. Katoh;Y. Miyoshi;E. Grono;N. Partamies;Nithin Sivadas;K. Hosokawa;M. Fukizawa;M. Samara;R. Michell;R. Kataoka;T. Sakanoi;D. Whiter;S. Oyama;Y. Ogawa;S. Kurita
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文献类型：
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作者：
Y. Nishimura;M. Lessard;Y. Katoh;Y. Miyoshi;E. Grono;N. Partamies;Nithin Sivadas;K. Hosokawa;M. Fukizawa;M. Samara;R. Michell;R. Kataoka;T. Sakanoi;D. Whiter;S. Oyama;Y. Ogawa;S. Kurita
本章回顾了扩散极光和脉动极光的基本性质和最新进展。扩散和脉动极光经常发生在封闭的场线上，并涉及波粒相互作用产生的高能电子沉淀。在总结了定义，大尺度形态，脉动类型和驱动过程，我们回顾了观测技术，发生，持续时间，高度，演变，小尺度结构，快速调制，与高能降水，ECH波的作用，反射和二次电子，电离层动力学和波粒相互作用的模拟。最后，我们讨论了扩散和脉动极光的开放性问题。
This chapter reviews fundamental properties and recent advances of diffuse and pulsating aurora. Diffuse and pulsating aurora often occurs on closed field lines and involves energetic electron precipitation by wave-particle interaction. After summarizing the definition, large-scale morphology, types of pulsation, and driving processes, we review observation techniques, occurrence, duration, altitude, evolution, small-scale structures, fast modulation, relation to high-energy precipitation, the role of ECH waves, reflected and secondary electrons, ionosphere dynamics, and simulation of wave-particle interaction. Finally we discuss open questions of diffuse and pulsating aurora.