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Diffuse and Pulsating Aurora
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DOI：10.1007/s11214-019-0629-3.png)
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Abstract
En 中文
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.
Keywords:
Pulsating aurora
Diffuse aurora
Wave-particle interaction
Whistler-mode chorus
Energetic electron precipitation
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