globalchange  > 气候减缓与适应
DOI: 10.1029/2017JA025123
Scopus记录号: 2-s2.0-85050278580
论文题名:
Poloidal Mode Wave-Particle Interactions Inferred From Van Allen Probes and CARISMA Ground-Based Observations
作者: Wang C.; Rankin R.; Wang Y.; Zong Q.-G.; Zhou X.; Takahashi K.; Marchand R.; Degeling A.W.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:6
起始页码: 4652
结束页码: 4667
语种: 英语
英文关键词: drift resonant ; test particle simulation ; ULF wave
英文摘要: Ultralow-frequency wave and test particle models are used to investigate the pitch angle and energy dependence of ion differential fluxes measured by the Van Allen Probes spacecraft on 6 October 2012. Analysis of the satellite data reveals modulations in differential flux resulting from drift resonance between H+ ions and fundamental mode poloidal Alfvén waves detected near the magnetic equator at L ∼ 5.7. Results obtained from simulations reproduce important features of the observations, including a substantial enhancement of the differential flux between ∼20 and 40° pitch angle for ion energies between ∼90 and 220 keV and an absence of flux modulations at 90°. The numerical results confirm predictions of drift-bounce resonance theory and show good quantitative agreement with observations of modulations in differential flux produced by ultralow-frequency waves. ©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/113748
Appears in Collections:气候减缓与适应

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作者单位: Department of Physics, University of Alberta, Edmonton, AB, Canada; Institute of Space Physics and Applied Technology, Peking University, Beijing, China; The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States; Institute of Space Science and Physics, Shandong University, Weihai, China

Recommended Citation:
Wang C.,Rankin R.,Wang Y.,et al. Poloidal Mode Wave-Particle Interactions Inferred From Van Allen Probes and CARISMA Ground-Based Observations[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(6)
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