Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 39, issue 4
Articles | Volume 39, issue 4
https://doi.org/10.5194/angeo-39-613-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-39-613-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 39, issue 4
Regular paper
 | 
06 Jul 2021
Regular paper |  | 06 Jul 2021

Reflection of low-frequency fast magnetosonic waves at the local two-ion cutoff frequency: observation in the plasmasphere

Geng Wang, Mingyu Wu, Guoqiang Wang, Sudong Xiao, Irina Zhelavskaya, Yuri Shprits, Yuanqiang Chen, Zhengyang Zou, Zhonglei Gao, Wen Yi, and Tielong Zhang

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Cited articles

Balikhin, M. A., Shprits, Y. Y., Walker, S. N., Chen, L., Cornilleau-Wehrlin, N., Dandouras, I., Santolik, O., Carr, C., Yearby, K. H., and Weiss, B.: Observations of discrete harmonics emerging from equatorial noise, Nat. Commun., 6, 7703, https://doi.org/10.1038/ncomms8703, 2015. a, b
Boardsen, S. A., Gallagher, D. L., Gurnett, D. A., Peterson, W. K., and Green, J. L.: Funnel-shaped, low-frequency equatorial waves, J. Geophys. Res., 97, 14, https://doi.org/10.1029/92JA00827, 1992. a
Boardsen, S. A., Hospodarsky, G. B., Kletzing, C. A., Engebretson, M. J., Pfaff, R. F., Wygant, J. R., Kurth, W. S., Averkamp, T. F., Bounds, S. R., Green, J. L., and De Pascuale, S.: Survey of the frequency dependent latitudinal distribution of the fast magnetosonic wave mode from Van Allen Probes Electric and Magnetic Field Instrument and Integrated Science waveform receiver plasma wave analysis, J. Geophys. Res., 121, 2902–2921, https://doi.org/10.1002/2015JA021844, 2016. a, b
Bortnik, J. and Thorne, R. M.: Transit time scattering of energetic electrons due to equatorially confined magnetosonic waves, J. Geophys. Res., 115, A07213, https://doi.org/10.1029/2010JA015283, 2010. a
Chen, L. and Thorne, R. M.: Perpendicular propagation of magnetosonic waves, Geophys. Res. Lett., 39, L14102, https://doi.org/10.1029/2012GL052485, 2012. a, b
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We investigate the reflection of magnetosonic (MS) waves at the local two-ion cutoff frequency in the outer plasmasphere, which is rarely reported. The observed wave signals demonstrate the reflection at the local two-ion cutoff frequency. From simulations, the waves with small incident angles are more likely to penetrate the thin layer where the group velocity reduces significantly before reflection. These results may help to predict the global distribution of MS waves.
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