Whistler-Mode Chorus Wave Duct Propagation Caused by Ultralow Frequency Wave: Event Analysis and Ray-Tracing Simulation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F25%3A00638621" target="_blank" >RIV/68378289:_____/25:00638621 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/25:10510134
Result on the web
<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL116840" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL116840</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2025GL116840" target="_blank" >10.1029/2025GL116840</a>
Alternative languages
Result language
angličtina
Original language name
Whistler-Mode Chorus Wave Duct Propagation Caused by Ultralow Frequency Wave: Event Analysis and Ray-Tracing Simulation
Original language description
This study presents observational evidence and ray-tracing simulations demonstrating ultra-low frequency (ULF) wave-induced duct propagation of whistler-mode waves. Cluster satellite observation reveals chorus propagating quasi-parallelly at high latitudes and ULF waves. Chorus intensity enhancements correlate with refractive index increases driven by the ULF wave-induced electron density and magnetic field variations. The theoretical maximum wave normal angle for duct propagation agrees with observed angles. The ray-tracing calculations, using observation-based duct models, reproduce ducted propagation, showing the consistent relation between frequencies and wave normal angles with the observation. These findings indicate that ULF waves create ducts guiding chorus waves to high latitudes and modulate chorus intensity in the time scale of the ULF wave period. This ULF wave ducting mechanism may explain chorus wave distribution and ULF wave-modulated electron precipitation/aurora, providing new insights into wave-particle interactions in radiation belts.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/GX25-18095X" target="_blank" >GX25-18095X: Unusual propagation modes of electromagnetic waves in the Solar system</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geophysical Research Letters
ISSN
0094-8276
e-ISSN
1944-8007
Volume of the periodical
52
Issue of the periodical within the volume
17
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
e2025GL116840
UT code for WoS article
001559245500001
EID of the result in the Scopus database
2-s2.0-105015484035