Results 11 to 20 of about 162 (141)

Modeling the Leakage of Hiss Waves From the Plasmasphere

Journal of Geophysical Research: Space Physics
Abstract Plasmaspheric hiss waves can cross the plasmasphere boundary layer (PBL) and leak into the plasmatrough, serving as the main source of exohiss waves. However, it remains unclear how the PBL and wave characteristics affect the leakage process of hiss waves. In this study, we conducted a detailed parametric ray tracing study to
Xiangling Ding, Zhaoguo He, Jiang Yu, Jing Wang, Yuguang Ye, Qiugang Zong   +5 more
openaire   +2 more sources

Abrupt Disappearance of Plasmaspheric Hiss Inside the Magnetic Dip

Geophysical Research Letters
Plasmaspheric hiss plays an important role in radiation belt electron dynamics, and its excitation and propagation have long attracted attention. During a substorm, Van Allen Probe B observed the disappearance of plasmaspheric hiss at the magnetic dip ...
Yan Zhuang, Chao Yue, Shan Wang, Haimeng Li, Sibo Xu, Xu‐Zhi Zhou, Qiu‐Gang Zong   +6 more
doaj   +2 more sources

Frequency‐Dependent Latitudinal Distributions of Plasmaspheric Plume Hiss Directionality and Amplitude

Geophysical Research Letters
Plasmaspheric plume hiss plays a crucial role in shaping Earth's electron radiation belts and influencing magnetosphere–ionosphere energy coupling. However, its generation mechanism remains contested between cyclic‐linear and localized‐nonlinear models ...
Zhiyong Wu, Zhenpeng Su, Huinan Zheng, Yuming Wang   +3 more
doaj   +2 more sources

Electron Diffusion by Coexisting Plasmaspheric Hiss and Chorus Waves: Multisatellite Observations and Simulations

Geophysical Research Letters, 2020
AbstractWe report a rare event of intense plasmaspheric hiss and chorus waves simultaneously observed at the same L shell but different magnetic local times by Van Allen Probes and Magnetospheric Multiscale. Based on the measured waves and electron distributions, we calculate the bounce‐averaged diffusion coefficients and subsequently simulate the ...
Jing Yu, Jun Cui, Liuyuan Li
exaly   +2 more sources

Effect of plasma density on diffusion rates due to wave particle interactions with chorus and plasmaspheric hiss: extreme event analysis [PDF]

Annales Geophysicae, 2014
Wave particle interactions play an important role in controlling the dynamics of the radiation belts. The purpose of this study is to estimate how variations in the plasma density can affect diffusion rates resulting from interactions between chorus ...
A. Sicard-Piet, D. Boscher, R. B. Horne, N. P. Meredith, V. Maget   +4 more
doaj   +3 more sources

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 ...
Zhenpeng Su, Daniel Baker, Zhonglei Gao   +2 more
exaly   +3 more sources

Enhanced Radiation at Aviation Altitudes and Plasmaspheric Hiss Waves—A Time Shift Analysis

Journal of Geophysical Research: Space Physics
Abstract Increased radiation levels in Earth's atmosphere can present significant risks to airline pilots, passengers, and commercial space travelers. Recent findings have revealed a strong statistical link between radiation dose rates detected at aviation altitudes (km) and plasmaspheric hiss wave power observed along the same ...
Jacob Bortnik, Homayon Aryan, Piyush Mehta   +2 more
exaly   +2 more sources

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

Multi‐Parameter Chorus and Plasmaspheric Hiss Wave Models [PDF]

Journal of Geophysical Research: Space Physics, 2020
AbstractThe resonant interaction of energetic particles with plasma waves, such as chorus and plasmaspheric hiss waves, plays a direct and crucial role in the acceleration and loss of radiation belt electrons that ultimately affect the dynamics of the radiation belts.
Homayon Aryan, Jacob Bortnik, Nigel P. Meredith, Richard B. Horne, David G. Sibeck, Michael A. Balikhin   +5 more
openaire   +4 more sources

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