Results 151 to 160 of about 5,343,913 (293)

Atmospheric density and pressure inferred from the meteor diffusion coefficient and airglow O2b temperature in the MLT region [PDF]

, 2014
H. Takahashi, Takuji Nakamura, K. Shiokawa, Toshitaka Tsuda, Lourivaldo Mota Lima, D. Gobbi   +5 more
openalex   +1 more source

Automated Detection of Equatorial Plasma Bubbles From the Magnetic Measurements of Macau Science Satellite‐1 Using Machine Learning

Space Weather, Volume 24, Issue 4, April 2026.
Abstract Equatorial plasma bubbles (EPBs) are plasma density depletion structures that produce magnetic field perturbations through the diamagnetic effect and therefore need to be identified and excluded in high‐precision geomagnetic field modeling. Traditional EPB detection methods typically rely on in situ electron density or total electron content ...
Xinyi Rang, Chao Xiong, Yuhao Zheng, Yuyang Huang   +3 more
wiley   +1 more source

Global Energy Circulation During a Solar Wind Density Pulse

Space Weather, Volume 24, Issue 4, April 2026.
Abstract We study the propagation and impacts of a strong density pulse through the magnetosphere during 11:40–12:00 UT near the peak of a geomagnetic storm on 3 February 2022. Using the Space Weather Modeling Framework Geospace global simulation, we show how the energy transport in the magnetosphere is enhanced promptly after the pulse arrival at the ...
Tuija Pulkkinen, Matti Ala‐Lahti, Austin Brenner, Gábor Tóth, Daniel Welling, Timothy Keebler   +5 more
wiley   +1 more source

The Prediction of Short‐Term Atmospheric Density in Lower Thermosphere

Space Weather, Volume 24, Issue 4, April 2026.
Abstract Accurate short‐term prediction of atmospheric density in the lower thermosphere (85–125 km) is essential for precise orbit determination and satellite drag mitigation, particularly during geomagnetic storms. Although physics‐based models such as NRLMSIS 2.1 provide empirical estimates, their effectiveness is limited under extreme space weather.
Zheng Li, Xiang Chen, Hua Zhang, Jingyuan Li, Yanan Sun   +4 more
wiley   +1 more source

Low-frequency lower E-region wind and reflection height measurements as sensor for climate variability [PDF]

Advances in Radio Science, 2008
Measurements of reflection heights of low-frequency (LF) radio waves at oblique incidence and estimates of mesosphere/lower thermosphere (MLT) region horizontal winds applying the D1 spaced receiver method on LF field strength registrations are analyzed ...
C. Jacobi
doaj  

Superposed Epoch Analysis of Extreme Geomagnetic Disturbances at Auroral Zone Latitudes Over a Solar Cycle

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Intense and rapidly changing electrical currents in near‐Earth space produce geomagnetic disturbances (GMDs) with large magnetic field rates of change (dB/dt) and in turn large geomagnetically induced currents (GICs) in nearby power lines and pipelines. This study builds on the work of Engebretson, Yang, et al.
Mark J. Engebretson, Giulia F. Mazza, Erik S. Steinmetz, Vyacheslav A. Pilipenko, Mark B. Moldwin, Martin G. Connors, Shin‐ichi Ohtani, Jesper W. Gjerloev   +7 more
wiley   +1 more source

Trends in the Airglow Temperatures in the MLT Region—Part 3: Ground-Based and SABER Measurements [PDF]

, 2021
Tai‐Yin Huang, Michael Vanyo
openalex   +1 more source

Spatial and Energy Dependence of Energetic Electron Precipitation Originating From Jupiter's Inner and Middle Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Energetic electron precipitation transfers trapped magnetospheric energy into Jupiter's atmosphere, yet its contribution beyond the main auroral oval has to be fully quantified. This study statistically investigates the atmospheric energy input from electrons in the 30 keV–1.2 MeV range using in situ measurements from the Juno spacecraft ...
Domenique Freund, George Clark, Lauren W. Blum, Zhi‐Gu Li   +3 more
wiley   +1 more source

Calculating Quasi‐Linear Diffusion Rates Using Different Methods to Specify the Wave Spectrum

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Quasi‐linear diffusion theory is widely used in radiation belt modeling to describe resonant interactions between charged particles and electromagnetic waves. The diffusion rates depend on the wave spectrum and properties of the background plasma.
J. D. Sadler, R. B. Horne, S. A. Glauert, T. A. Daggitt, J. M. Albert, G. Del Zanna   +5 more
wiley   +1 more source

Characterizing the Role of Storm‐Time High‐Latitude Ionospheric Structures in GPS Position Accuracy in Antarctica: May 2024 Storm

Space Weather, Volume 24, Issue 4, April 2026.
Abstract This study investigates the impact of high‐latitude ionospheric irregularities on global positioning system (GPS) position accuracy during the 10–11 May 2024 geomagnetic storm. Using data from ground‐based GPS receivers and an all‐sky camera in Antarctica, we examined evolution of GPS vertical total electron content, phase fluctuations, and ...
Waqar Younas, Yukitoshi Nishimura, Weixuan Liao, Josh L. Semeter, Sebastijan Mrak, Y. Jade Morton, Keith M. Groves, Tetsuo Motoba, Tim Everett   +8 more
wiley   +1 more source