Results 91 to 100 of about 1,155 (215)

Wave‐Based Quantification of Ion Composition in the Earth's Magnetosphere‐Ionosphere‐Coupling Region

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Ion composition critically determines the basic kinetic characteristics of plasma and affects energy transmission of the magnetosphere. However, it exhibits significant variations with altitude, latitude, local time, longitude, and also with geomagnetic and solar activity.
Zhijie Qin, Hui Zhu, Zhihai Ouyang, Huicong Chen, Zhenghao She   +4 more
wiley   +1 more source

Global Effects of Chorus and Hiss Waves on Trapped Energetic Electrons at Jupiter

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Unlike Earth, where whistler‐mode chorus is generally observed outside the plasmasphere and hiss is predominantly confined within it, Jupiter's magnetosphere frequently hosts both wave modes simultaneously. Using Juno observations, we present a global survey of whistler‐mode waves at Jupiter, demonstrating that both chorus and hiss are ...
W. Li, Q. Ma, W. S. Kurth, G. B. Hospodarsky, S. J. Bolton   +4 more
wiley   +1 more source

A Computationally Efficient Method for Deriving Instantaneous F2 Layer Peak Parameters From Climatological Maps and TEC Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract International Reference Ionosphere (IRI) and the Ionosphere‐Plasmasphere (IRI‐Plas) models describe monthly median ionospheric conditions. IRI‐Plas, unlike IRI, allows one to include instantaneous Total Electron Content observations (TEC) to adjust the median predictions. The standard IRI‐Plas generates monthly medians of foF2m, hmF2m and TECm
T. L. Gulyaeva, F. Arikan, M. Hernández‐Pajares, I. Stanislawska, A. M. Padokhin   +4 more
wiley   +1 more source

A new solar windâ driven global dynamic plasmapause model: 2. Model and validation [PDF]

, 2017
A new solar windâ driven global dynamic plasmapause (NSWâ GDP) model has been constructed based on the largest currently available database containing 49,119 plasmapause crossing locations and 3957 plasmapause profiles (corresponding to 48,899 ...
Liemohn, Mike W., Fei He, Roxanne M. Katus, Nakano, Shinya, Lin, Rui‐lin, Xiao‐Xin Zhang, Mike W. Liemohn, Katus, Roxanne M., Mei‐Ching Fok, He, Fei, Zhang, Xiao Xin, Lin, Rui Lin, Rui‐Lin Lin, Fok, Mei Ching, Dennis L. Gallagher, Gallagher, Dennis L., Zhang, Xiao‐xin, Fok, Mei‐ching, Shinya Nakano   +18 more
core   +1 more source

Hiss Wave Evolution During Substorms Based on Van Allen Probes Observations

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Hiss waves frequently occur in the plasmasphere or plumes, playing a key role in energetic electron loss in the Earth's inner magnetosphere. While previous studies have linked hiss wave enhancements in the outer plasmasphere (just inside the plasmapause) to electron injections during substorms, their evolution across various substorm phases ...
Xiao‐Chen Shen, Wen Li, Qianli Ma, Nigel P. Meredith, Xiangning Chu, Murong Qin, Luisa Capannolo, Sheng Huang   +7 more
wiley   +1 more source

Observations of the ionospheric projection of the plasmapause

Geophysical Research Letters, 2008
We demonstrate a method for extracting the ionospheric projection of the plasmapause (PP) from DMSP measurements of the H+ density in the topside ionosphere. The results agree well with PP locations derived from images of the plasmasphere acquired by the IMAGE spacecraft during a 72‐day period in 2001.
P. C. Anderson, W. R. Johnston, J. Goldstein   +2 more
openaire   +1 more source

Abrupt Disappearance of Plasmaspheric Hiss Inside the Magnetic Dip

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract 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, which was driven by the injection of energetic protons.
Yan Zhuang, Chao Yue, Shan Wang, Haimeng Li, Sibo Xu, Xu‐Zhi Zhou, Qiu‐Gang Zong   +6 more
wiley   +1 more source

Identifying the Magnetospheric Drivers of Giant Undulations: Global Modeling of the Evolving Inner Magnetosphere and Its Auroral Manifestations

Geophysical Research Letters
We present the first global geospace simulation to reproduce auroral giant undulations (GUs). To identify their magnetospheric drivers, we employ the MAGE (Multiscale Atmosphere‐Geospace Environment) model in a case study of a geomagnetic storm for which
K. A. Sorathia, M. Shumko, A. Sciola, A. Michael, V. G. Merkin, B. Gallardo‐Lacourt, M. G. Henderson, D. Lin, S. Bao, J. Garretson, A. Y. Ukhorskiy   +10 more
doaj   +1 more source

Whistler wave intensity enhancement at plasmapause

, 2001
72-76Energy enhancement of a VLF wave propagating through a plasmapause is studied considering different plasmapause locations. It is found that a wave will get ≈ 3 dB more intensity when passing through plasmapause.
Singh, D P, Singh, U P, Prakash, Ram
core  

Sub-oval proton aurora spots: Mapping relatively to the plasmapause

, 2016
Sub-oval proton auroras discovered by the IMAGE spacecraft correlate with EMIC waves (geomagnetic pulsations of the Pc1 range). This means that a common source of the waves and proton precipitation is the ion-cyclotron (IC) instability developing in the ...
Frey, H., Pierrard, V., Yahnina, T.A., Yahnin, A.G.   +3 more
core   +1 more source