Articles | Volume 39, issue 3
Regular paper
18 May 2021
Regular paper |  | 18 May 2021

Attenuation of plasmaspheric hiss associated with the enhanced magnetospheric electric field

Haimeng Li, Wen Li, Qianli Ma, Yukitoshi Nishimura, Zhigang Yuan, Alex J. Boyd, Xiaochen Shen, Rongxin Tang, and Xiaohua Deng

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Subject: Magnetosphere & space plasma physics | Keywords: Wave–particle interactions
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Cited articles

Blake, J. B., Carranza, P. A., and Claudepierre, S. G.: The Magnetic Electron Ion Spectrometer (MagEIS) Instruments Aboard the Radiation Belt Storm Probes (RBSP) Spacecraft, Space Sci. Rev., 179, 383–421,, 2013. 
Bortnik, J., Thorne, R. M., and Meredith, N. P.: The unexpected origin of plasmaspheric hiss from discrete chorus emissions, Nature, 452, 62–66,, 2008. 
Bortnik, J., Li, W., Thorne, R. M., Angelopoulos, V., Bonnell, J., Contel, O. L., and Roux, A.: An observation linking the origin of plasmaspheric hiss to discrete chorus emissions, Science China Technological Sciences, 324, 775–778,, 2009.  
Burch, J. L.: The magnetosphere, in: Upper Atmosphere and Magnetosphere, National Academy of Sciences, Washington, D.C, 42–56,, 1977. 
Chan, K.-W. and Holzer, R. E.: ELF hiss associated with plasma density enhancements in the outer magnetosphere, J. Geophys. Res., 81, 2267–2274,, 1976. 
Short summary
We report an event where hiss wave intensity decreased, associated with the enhanced convection and a substorm. We suggest that the enhanced magnetospheric electric field causes the outward and sunward motion of energetic electrons. This leads to the decrease of energetic electron fluxes on the duskside, which provide free energy for hiss amplification. The study reveals the important role of magnetospheric electric field in the variation of the energetic electron flux and hiss wave intensity.