Results 51 to 60 of about 2,277 (215)

Earthward Propagated Auroral Kilometric Radiation: Observations From Polar

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Auroral Kilometric Radiation (AKR), the strongest natural radio emission from Earth's magnetosphere, has been primarily observed in space. It is generally understood to propagate anti‐Earthward and be detected at large radial distances, while Earthward‐directed waves are thought to be blocked by the ionosphere. Surprisingly, AKR‐like emissions
Olha Melnychenko, Siyuan Wu, Daniel K. Whiter, Baptiste Cecconi, Claire Baskvetich   +4 more
wiley   +1 more source

The Drag of Ionosphere Plasma Drifts on Thermospheric Zonal Winds During the 10–12 May 2024 Superstorm

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The observations from GRACE‐FO and DMSP satellites are utilized to analyze the ion‐neutral interaction near dusk during the 10–12 May 2024 super‐storm. The horizontal plasma convection dragged the anti‐sunward wind in the polar cap and sunward winds around the auroral and subauroral regions during whole storm times.
Ruilong Zhang, Libo Liu, Wenbo Li, Rongjin Du, Yuzhou Wang, Yiding Chen, Huijun Le   +6 more
wiley   +1 more source

Argon-ion contamination of the plasmasphere [PDF]

, 1979
This paper applies present observational and analytic knowledge on effects of plasma beam interaction wth the magnetosphere to the plasmasphere contamination problem of the argon ion engine exhaust expected to be deposited in the magnetosphere during the
Schulz, M., Chiu, Y. T., Luhmann, J. G., Cornwall, J. M.   +3 more
core   +1 more source

Long-Term Variations of Plasmaspheric Total Electron Content from Topside GPS Observations on LEO Satellites

Remote Sensing, 2021
The plasmasphere is located above the ionosphere with low-energy plasma, which is an important component of the solar-terrestrial space environment. As the link between the ionosphere and the magnetosphere, the plasmasphere plays an important role in the
Shuanggen Jin, Chao Gao, Liangliang Yuan, Peng Guo, Andres Calabia, Haibing Ruan, Peng Luo   +6 more
doaj   +1 more source

First Observation of the Second Harmonic of Upper Band Chorus Waves Linking to Slow Z‐Mode

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The Z‐mode, comprising fast and slow branches, is a ubiquitous electromagnetic wave in planetary magnetospheres. While fast Z‐mode generation is attributed to electron cyclotron maser instability, the slow Z‐mode mechanism remains unresolved.
Si Liu, Zhonglei Gao, Yaxiong Zhou, Hongming Yang, Fuliang Xiao, Archie James Johnston, Lixian Yang   +6 more
wiley   +1 more source

Monitoring Space Weather: Using Automated, Accurate Neural Network Based Whistler Segmentation for Whistler Inversion

Space Weather, 2022
It is challenging, yet important, to measure the—ever‐changing—cold electron density in the plasmasphere. The cold electron density inside and outside of the plasmapause is a key parameter for radiation belt dynamics.
Bálint Ármin Pataki, János Lichtenberger, Mark Clilverd, Gergely Máthé, Péter Steinbach, Szilárd Pásztor, Lilla Murár‐Juhász, Dávid Koronczay, Orsolya Ferencz, István Csabai   +9 more
doaj   +1 more source

Revealing the Formation of the <20 MeV Inner Proton Radiation Belt at L ∼ 2 During the 10–11 May 2024 Superstorm

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract A new proton radiation belt was identified during the geomagnetic superstorm of 10–11 May 2024. To investigate its origin, we use an MHD‐test particle simulation to model solar energetic proton (SEP) trapping and the evolution of the initial trapped proton population during the storm.
Murong Qin, Mary K. Hudson, Miles Engel, Brian T. Kress, Zhao Li, Maulik Patel, Wen Li, Kevin Pham, William R. Johnston, Xinlin Li, Shawn Young   +10 more
wiley   +1 more source

Spatial Distribution and Plasmaspheric Ducting of Auroral Kilometric Radiation Revealed by Wind, Polar, and Arase

AGU Advances
Auroral Kilometric Radiation (AKR), the dominant radio emission from Earth, has been extensively studied, though previous analyses were constrained by limited spacecraft coverage.
Siyuan Wu, Daniel K. Whiter, Sai Zhang, Ulrich Taubenschuss, Philippe Zarka, Georg Fischer, Laurent Lamy, Shengyi Ye, James Waters, Baptiste Cecconi, Ping Li, Caitriona M. Jackman, Alexandra R. Fogg, Claire Baskevitch, Yoshiya Kasahara, Yasumasa Kasaba   +15 more
doaj   +1 more source

A Statistical Model of Inner Magnetospheric Electron Density: Van Allen Probes Observations

Space Weather, 2022
Based on electron density observations between September 2012 and July 2019 from the Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) on board the Van Allen Probes (VAPs) spacecraft, this paper makes a statistical ...
Jing‐Tian Lv, Xiao‐Xin Zhang, Fei He, Rui‐Lin Lin   +3 more
doaj   +1 more source

Modeling of the cold electron plasma density for radiation belt physics

Frontiers in Astronomy and Space Sciences, 2023
This review focusses strictly on existing plasma density models, including ionospheric source models, empirical density models, physics-based and machine-learning density models.
J.-F. Ripoll, J.-F. Ripoll, V. Pierrard, V. Pierrard, G. S. Cunningham, X. Chu, K. A. Sorathia, D. P. Hartley, S. A. Thaller, V. G. Merkin, G. L. Delzanno, S. De Pascuale, A. Y. Ukhorskiy   +12 more
doaj   +1 more source