A radial standing Pc5-6 wave and its energy coupling with field line resonance within the dusk-sector magnetosphere
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
Global ultra-low frequency (ULF) oscillations are believed to play a significant role in the mass, energy, and momentum transport within the Earth's magnetosphere. In this letter, we observe a ∼1.2 mHz radial standing wave in the dusk-sector magnetosphere accompanied by the field line resonance (FLR) on 16 July 2017. The frequency estimation from the simple box model also confirms the radial standing wave. The essential characteristics of FLR are concurrently identified at the dusk-sector magnetosphere and the conjugated ground location. Further, the radial standing wave dissipates energy into upper atmosphere to enhance the local aurora by coupling itself to the FLR. The magnetospheric dominant 1.2/1.1 mHz ULF waves plausibly correspond well with the discrete ∼1 mHz magnetosheath ion dynamic pressure/velocity oscillation, suggesting this radial standing wave and FLR in the flank magnetosphere may be triggered by the solar-wind and/or magnetosheath dynamic pressure/velocity fluctuations.
Date Issued
2023-10
Date Acceptance
2023-09-21
Citation
JGR: Space Physics, 2023, 128 (10)
ISSN
2169-9402
Publisher
American Geophysical Union
Journal / Book Title
JGR: Space Physics
Volume
128
Issue
10
Copyright Statement
© 2023. American Geophysical Union. All Rights Reserved. An edited version of this paper was published by AGU. Published 2023 American Geophysical Union. Zhou, Y.-J., He, F., Zhang, X.-X., Archer, M. O., Lin, Y., Ma, H., et al. (2023). A radial standing Pc5-6 wave and its energy coupling with field line resonance within the dusk-sector magnetosphere. Journal of Geophysical Research: Space Physics, 128, e2023JA031835. https://doi.org/10.1029/2023JA031835
Sponsor
Engineering & Physical Science Research Council (EPSRC)
UKRI
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001075772200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Grant Number
EP/T01735X/1
EP/T01735X/1
Subjects
Astronomy & Astrophysics
CAVITY
DRIVEN
EXCITATION
field line resonance (FLR)
INSTABILITY
INSTRUMENT
MAGNETOPAUSE
Magnetosheath Fluctuation
MODES
OSCILLATIONS
PERIOD MAGNETIC PULSATIONS
Physical Sciences
Science & Technology
standing wave
ULF PULSATIONS
ultra-low frequency (ULF) wave
Publication Status
Published
Article Number
e2023JA031835
Date Publish Online
2023-09-28