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  Simultaneous Observations of Localized and Global Drift Resonance

Hao, Y. X., Zhao, X. X., Zong, Q., Zhou, X., Rankin, R., Chen, X. R., et al. (2020). Simultaneous Observations of Localized and Global Drift Resonance. Geophysical Research Letters, 47(17): e2020GL088019. doi:10.1029/2020GL088019.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-0C01-B Version Permalink: http://hdl.handle.net/21.11116/0000-0007-0C02-A
Genre: Journal Article

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 Creators:
Hao, Y. X.1, Author
Zhao, X. X., Author
Zong, Q.‐G., Author
Zhou, X.‐Z., Author
Rankin, R., Author
Chen, X. R., Author
Liu, Y., Author
Fu, S. Y., Author
Blake, J. B., Author
Reeves, G. D., Author
Claudepierre, S. G., Author
Affiliations:
1Max Planck Institute for Solar System Research, Max Planck Society, Justus-von-Liebig-Weg 3, 37077 Göttingen, DE, ou_1125546              

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 Abstract: In this study, we present Van Allen Probe observations showing that seed (hundreds of keV) and core ( urn:x-wiley:grl:media:grl60711:grl60711-math-0001 1 MeV) electrons can resonate with ultra‐low‐frequency (ULF) wave modes with distinctive m values simultaneously. An unusual electron energy spectrogram with double‐banded resonant structure was recorded by energetic particle, composition, and thermal plasma (ECT)‐magnetic electron ion spectrometer (MagEIS) and, meanwhile, boomerang stripes in pitch angle spectrogram appeared at the lower energy band. A localized drift resonance with m = 10 wave component was responsible for the resonant band peaked at ∼200 keV while a global drift resonance with m = 3 component gave rise to the upper band resonance peaked at ∼1 MeV. Time‐Of‐Flight on boomerang stripes suggested that the localized drift resonance with ∼200 keV electrons was confined within the plasmaspheric plume. Electron flux modulations were reproduced by numerical simulations in good consistency with the observations, supporting the scenario that localized and global drift resonance could coexist in the outer belt electron dynamics simultaneously.

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Language(s): eng - English
 Dates: 2020
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1029/2020GL088019
 Degree: -

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Title: Geophysical Research Letters
  Abbreviation : GRL
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Geophysical Union / Wiley
Pages: - Volume / Issue: 47 (17) Sequence Number: e2020GL088019 Start / End Page: - Identifier: ISSN: 0094-8276
CoNE: https://pure.mpg.de/cone/journals/resource/954925465217