Results 21 to 30 of about 835 (185)

Evolution of Radiation Belt Electron Pitch Angle Distribution Due to Combined Scattering by Plasmaspheric Hiss and Magnetosonic Waves

Geophysical Research Letters, 2019
AbstractBoth magnetosonic (MS) waves and plasmaspheric hiss can resonantly scatter outer radiation belt electrons, leading to various electron pitch angle distribution. Based on electron diffusion coefficients calculations and 2‐D Fokker‐Planck diffusion simulations, we perform a parametric study to quantitatively investigate the net electron ...
Man Hua, Binbin Ni, Wen Li, Xudong Gu, Song Fu, Run Shi, Zheng Xiang, Xing Cao, Wenxun Zhang, Yingjie Guo   +9 more
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Simultaneous disappearances of plasmaspheric hiss, exohiss, and chorus waves triggered by a sudden decrease in solar wind dynamic pressure

Geophysical Research Letters, 2017
AbstractMagnetospheric whistler mode waves are of great importance in the radiation belt electron dynamics. Here on the basis of the analysis of a rare event with the simultaneous disappearances of whistler mode plasmaspheric hiss, exohiss, and chorus triggered by a sudden decrease in the solar wind dynamic pressure, we provide evidences for the ...
Nigang Liu, Zhenpeng Su, Zhonglei Gao, Huinan Zheng, Yuming Wang, Shui Wang, H. E. Spence, G. D. Reeves, D. N. Baker, J. B. Blake, H. O. Funsten, J. R. Wygant   +11 more
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Internal source of plasmaspheric hiss on Earth

地球与行星物理论评, 2022
Plasmasphere is an upward extension of the ionosphere at low and middle latitudes along the closed magnetic field lines rooted in the Earth, where the trapped whistler-mode waves in the frequency range from tens to thousands of Hertz are named as ...
Zhenpeng Su, Nigang Liu, Zhaoguo He, Zhiyong Wu   +3 more
doaj   +1 more source

Determining the Temporal and Spatial Coherence of Plasmaspheric Hiss Waves in the Magnetosphere [PDF]

Journal of Geophysical Research: Space Physics, 2021
AbstractPlasmaspheric hiss is one of the most important plasma waves in the Earth's magnetosphere to contribute to radiation belt dynamics by pitch‐angle scattering energetic electrons via wave‐particle interactions. There is growing evidence that the temporal and spatial variability of wave‐particle interactions are important factors in the ...
Shuai Zhang, I. Jonathan Rae, Clare E. J. Watt, Alexander W. Degeling, Anmin Tian, Quanqi Shi, Xiao‐Chen Shen, Andy W. Smith, Mengmeng Wang   +8 more
openaire   +3 more sources

The Study on Modeling of Global Plasmaspheric Hiss Amplitude Based on Deep Learning Algorithm

Space Weather, 2023
Plasmaspheric hiss waves make great significance on the loss of electrons in the Earth's radiation belts. The prediction and reconstruction for global evolution plasmaspheric hiss are critical to investigate the dynamic process of radiation belt. In this
Rongxin Tang, Zhenghan Wang, Haimeng Li, Zhou Chen, Zhihai Ouyang, Xiaohua Deng   +5 more
doaj   +1 more source

Frequency‐Dependent Responses of Plasmaspheric Hiss to the Impact of an Interplanetary Shock

Geophysical Research Letters, 2021
Plasmaspheric hiss waves are essential for the pitch‐angle scattering and precipitation of energetic electrons and interplanetary shocks may affect these waves.
Haobo Fu, Chao Yue, Qianli Ma, Ning Kang, Jacob Bortnik, Qiu‐gang Zong, Xu‐zhi Zhou   +6 more
doaj   +1 more source

Unique Banded Structures of Plasmaspheric Hiss Waves in the Earth's Magnetosphere

Journal of Geophysical Research: Space Physics, 2023
AbstractPlasmaspheric hiss is an electromagnetic wave mode that occurs ubiquitously in the high‐density plasmasphere and contributes crucially to the dynamic behavior of the Earth's Van Allen radiation belts. While plasmaspheric hiss is commonly considered to be a broadband emission with frequencies from ∼100 Hz to several kHz, here we report Van Allen
Binbin Ni, Danny Summers, Zheng Xiang, Xiankang Dou, Bruce T. Tsurutani, Nigel P. Meredith, Junhu Dong, Lunjin Chen, Geoffrey D. Reeves, Xu Liu, Xin Tao, Xudong Gu, Xin Ma, Juan Yi, Song Fu, Wei Xu   +15 more
openaire   +4 more sources

Observations of Radiation Belt Losses Due to Cyclotron Wave-Particle Interactions [PDF]

, 2020
Electron loss to the atmosphere plays a critical role in driving dynamics of the Earths Van Allen radiation belts and slot region. This is a review of atmospheric loss of radiation belt electrons caused by plasma wave scattering via Doppler-shifted ...
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Nonlinear wave growth theory of coherent hiss emissions in the plasmasphere [PDF]

Journal of Geophysical Research: Space Physics, 2015
AbstractRecent observations of plasmaspheric hiss emissions by the Van Allen Probes show that broadband hiss emissions in the plasmasphere comprise short‐time coherent elements with rising and falling tone frequencies. Based on nonlinear wave growth theory of whistler mode chorus emissions, we have examined the applicability of the nonlinear theory to ...
Omura, Yoshiharu, Nakamura, Satoko, Kletzing, Craig A., Summers, Danny, Hikishima, Mitsuru   +4 more
openaire   +1 more source

Early-Time Non-Equilibrium Pitch Angle Diffusion of Electrons by Whistler-Mode Hiss in a Plasmaspheric Plume Associated with BARREL Precipitation

Frontiers in Astronomy and Space Sciences, 2021
In August 2015, the Balloon Array for Radiation belt Relativistic Electron Losses (BARREL) observed precipitation of energetic (<200 keV) electrons magnetically conjugate to a region of dense cold plasma as measured by the twin Van Allen Probes ...
R. M. Millan, J.-F. Ripoll, J.-F. Ripoll, O. Santolík, O. Santolík, W. S. Kurth   +5 more
doaj   +1 more source