Results 21 to 30 of about 960 (194)

Exohiss wave enhancement following substorm electron injection in the dayside magnetosphere [PDF]

Earth and Planetary Physics, 2018
Exohiss is a low-frequency structureless whistler-mode emission potentially contributing to the precipitation loss of radiation belt electrons outside the plasmasphere.
ZhongLei Gao, ZhenPeng Su, FuLiang Xiao, HuiNan Zheng, YuMing Wang, Shui Wang, H. E. Spence, G. D. Reeves, D. N. Baker, J. B. Blake, H. O. Funsten   +10 more
doaj   +2 more sources

Correlation Between Radiation Enhancements at Aviation Altitudes and Energetic Precipitating Electrons

Space Weather
The campaign of Automated Radiation Measurements for Aerospace Safety (ARMAS) has revealed that relativistic electron precipitation (REP) from the radiation belts can significantly enhance the radiation environment at aviation altitudes, in addition to ...
Wei Xu, Haotian Xu, Xudong Gu, Binbin Ni, Jingyuan Feng, Joshua Pettit, Hilde Nesse, W. Kent Tobiska, Wen Cheng, Wenchen Ma, Yudi Pan, Jacob Bortnik   +11 more
doaj   +2 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

Origins of plasmaspheric hiss [PDF]

Journal of Geophysical Research: Space Physics, 2006
Plasmaspheric hiss is an electromagnetic wave emission responsible for electron loss from the radiation belts, particularly in the slot region (2 < L < 3). There are two leading theories for the origin of plasmaspheric hiss: in situ amplification of wave turbulence in space and lightning‐generated whistlers.
Meredith, Nigel P., Horne, Richard B., Clilverd, Mark A., Horsfall, David, Thorne, Richard M., Anderson, Roger R.   +5 more
openaire   +2 more sources

Statistical Investigation of the Frequency Dependence of the Chorus Source Mechanism of Plasmaspheric Hiss

Geophysical Research Letters, 2021
We use data from eight satellites to statistically examine the role of chorus as a potential source of plasmaspheric hiss. We find that the strong equatorial (|λm| 
Nigel P. Meredith, Jacob Bortnik, Richard B. Horne, Wen Li, Xiao‐Chen Shen   +4 more
doaj   +1 more source

Determining Plasmaspheric Densities from Observations of Plasmaspheric Hiss [PDF]

Journal of Geophysical Research: Space Physics, 2018
AbstractA new method of inferring electron plasma densities inside of the plasmasphere is presented. Utilizing observations of the electric and magnetic field wave power associated with plasmaspheric hiss, coupled with the cold plasma dispersion relation, permits calculation of the plasma density.
D. P. Hartley, C. A. Kletzing, S. De Pascuale, W. S. Kurth, O. Santolík   +4 more
openaire   +1 more source

Deep learning model of hiss waves in the plasmasphere and plumes and their effects on radiation belt electrons

Frontiers in Astronomy and Space Sciences, 2023
Hiss waves play an important role in removing energetic electrons from Earth’s radiation belts by precipitating them into the upper atmosphere. Compared to plasmaspheric hiss that has been studied extensively, the evolution and effects of plume hiss are ...
Sheng Huang, Wen Li, Qianli Ma, Qianli Ma, Xiao-Chen Shen, Luisa Capannolo, Miroslav Hanzelka, Miroslav Hanzelka, Xiangning Chu, Donglai Ma, Jacob Bortnik, Simon Wing   +11 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

Plasmaspheric Hiss: Coherent and Intense [PDF]

Journal of Geophysical Research: Space Physics, 2018
AbstractIntense ~300‐Hz to 1.0‐kHz plasmaspheric hiss was studied using Polar plasma wave data. It is found that the waves are coherent in all local time sectors with the wave coherency occurring in approximately three‐ to five‐wave cycle packets. The plasmaspheric hiss in the dawn and local noon time sector are found to be substorm (AE*) and storm ...
Bruce T. Tsurutani, Sang A. Park, Barbara J. Falkowski, Gurbax S. Lakhina, Jolene S. Pickett, Jacob Bortnik, George Hospodarsky, Ondrej Santolik, Michel Parrot, Pierre Henri, Rajkumar Hajra   +10 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