globalchange  > 气候减缓与适应
DOI: 10.1029/2018JA025284
Scopus记录号: 2-s2.0-85052366809
论文题名:
Longitudinal Dependence of Whistler Mode Electromagnetic Waves in the Earth's Inner Magnetosphere
作者: Záhlava J.; Němec F.; Santolík O.; Kolmašova I.; Hospodarsky G.B.; Parrot M.; Kurth W.S.; Bortnik J.; Kletzing C.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:8
起始页码: 6562
结束页码: 6575
语种: 英语
英文关键词: DEMETER ; Van Allen Probes ; whistler waves
英文摘要: We use the measurements performed by the DEMETER (2004–010) and the Van Allen Probes (2012–016, still operating) spacecraft to investigate the longitudinal dependence of the intensity of whistler mode waves in the Earth's inner magnetosphere. We show that a significant longitudinal dependence is observed inside the plasmasphere on the nightside, primarily in the frequency range 400 Hz to 2 kHz. On the other hand, almost no longitudinal dependence is observed on the dayside. The obtained results are compared to the lightning occurrence rate provided by the Optical Transient Detector/Lightning Imaging Sensor mission normalized by a factor accounting for the ionospheric attenuation. The agreement between the two dependencies indicates that lightning-generated electromagnetic waves may be responsible for of the observed effect, thus substantially affecting the overall wave intensity in the given frequency range. Finally, we show that the longitudinal dependence is most pronounced for waves with oblique wave of normal angles. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113468
Appears in Collections:气候减缓与适应

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作者单位: Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic; Department of Space Physics, Institute of Atmospheric Physics, The Czech Academy of Sciences, Prague, Czech Republic; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; LPC2E/CNRS, Orléans, France; Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States

Recommended Citation:
Záhlava J.,Němec F.,Santolík O.,et al. Longitudinal Dependence of Whistler Mode Electromagnetic Waves in the Earth's Inner Magnetosphere[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(8)
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