globalchange  > 科学计划与规划
DOI: 10.1002/2015GL066107
论文题名:
Local time distributions of repetition periods for rising tone lower band chorus waves in the magnetosphere
作者: Shue J.-H.; Hsieh Y.-K.; Tam S.W.Y.; Wang K.; Fu H.S.; Bortnik J.; Tao X.; Hsieh W.-C.; Pi G.
刊名: Geophysical Research Letters
ISSN: 0094-9383
EISSN: 1944-9114
出版年: 2015
卷: 42, 期:20
起始页码: 8294
结束页码: 8301
语种: 英语
英文关键词: chorus ; local time distribution ; repetition period
Scopus关键词: Electromagnetic waves ; Magnetic fields ; Magnetism ; Magnetoplasma ; Magnetosphere ; chorus ; Generation mechanism ; Local time ; Main controlling factors ; repetition period ; Statistical study ; Wave-particle interactions ; Whistler-mode chorus ; Atmospherics ; comparative study ; discrete element method ; electron ; magnetic field ; magnetosphere ; return period ; temperature ; time dependent behavior ; waveform analysis
英文摘要: Whistler mode chorus waves generally occur outside the plasmapause in the magnetosphere. The most striking feature of the waves is their occurrence in discrete elements. One of the parameters that describe the discrete elements is the repetition period (Trp), the time between consecutive elements. The Trp has not been studied statistically before. We use high-resolution waveform data to derive distributions of Trp for different local times. We find that the average Trp for the nightside (0.56 s) and dawnside (0.53 s) are smaller than those for the dayside (0.81 s) and duskside (0.97 s). Through a comparison with the background plasma and magnetic fields, we also find that the total magnetic field and temperature are the main controlling factors that affect the variability of Trp. These results are important for understanding the generation mechanism of chorus and choosing parameters in simulations that model the acceleration and loss of electrons by wave-particle interactions. Key Points First statistical study on repetition period of chorus First local time distributions of the repetition period Main controlling factors of repetition period identified as the total magnetic field and temperature © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946544973&doi=10.1002%2f2015GL066107&partnerID=40&md5=c2537325fec590e3be033aeb2ffe54de
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8998
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Institute of Space Science, National Central University, Jhongli, Taiwan

Recommended Citation:
Shue J.-H.,Hsieh Y.-K.,Tam S.W.Y.,et al. Local time distributions of repetition periods for rising tone lower band chorus waves in the magnetosphere[J]. Geophysical Research Letters,2015-01-01,42(20).
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