Results 81 to 90 of about 14,504 (230)

Observations of High‐Resolution Two‐Dimensional Ionospheric Flow Dynamics Associated With Poleward Boundary Intensifications

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Poleward boundary intensifications (PBIs) are one of the most common auroral disturbances and have been shown to play a key role in substorm dynamics. PBIs are commonly interpreted as the ionospheric signature of magnetotail reconnection, providing insight into X‐line evolution.
Katherine Davidson, Yukitoshi Nishimura, Larry Lyons, Eric Donovan, Vassilis Angelopoulos, Nozomu Nishitani   +5 more
wiley   +1 more source

Traveling Ionospheric Disturbances at Mars

Geophysical Research Letters, 2019
AbstractWe report the first extraterrestrial observation of traveling ionospheric disturbances (TIDs) in the ionosphere of Mars (below ≈160 km) by NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft. TIDs are ionospheric waves manifesting as an oscillation in density, velocity, and composition of ionospheric plasma.
Glyn Collinson, James McFadden, David Mitchell, Joseph Grebowsky, Mehdi Benna, Jared Espley, Bruce Jakosky   +6 more
openaire   +1 more source

First Quantitative Results on the Response of Green and Red Line Dayglow Emissions to Solar Flares of Different Magnitudes

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Flares originate from the impulsive release of magnetic energy in the solar atmosphere. The rise in X‐ray flux enhances ionization/electron content in the upper atmosphere, modifying the photochemical and dynamical processes that govern the ionosphere‐thermosphere behavior.
Komal, Duggirala Pallamraju
wiley   +1 more source

Impact of Non‐Classical Gravity‐Wave Dynamics on Middle‐Atmosphere Mean Flow and Solar Tides

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Conventional gravity‐wave (GW) parameterizations neglect three aspects of GW dynamics. Instead of momentum and entropy fluxes they use Eliassen‐Palm fluxes, thereby neglecting the possibility that resolved flow are not in geostrophic and hydrostatic balance.
T. Kühner, G. S. Völker, U. Achatz
wiley   +1 more source

Preliminary results of the ionospheric high-frequency Doppler shift monitor for the Phase II of Chinese Meridian Project

地球与行星物理论评
The Phase II of Chinese Meridian Project plans to construct ionospheric Doppler sounding arrays around Mohe, Beijing, Wuhan, and Shenzhen. Each array consists of one transmitter station and three stations equipped with the ionospheric high-frequency ...
Yongqiang Hao, Guofeng Dai, Donghe Zhang, Zuo Xiao   +3 more
doaj   +1 more source

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

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract 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. By analyzing over 64,000 high‐resolution plume hiss wave segments from the Van Allen Probes
Zhiyong Wu, Zhenpeng Su, Huinan Zheng, Yuming Wang   +3 more
wiley   +1 more source

Additional flight delays and magnetospheric-ionospheric disturbances during solar storms. [PDF]

Sci Rep, 2023
Wang Y, Xu XH, Wei FS, Feng XS, Bo MH, Tang HW, Wang DS, Bian L, Wang BY, Zhang WY, Huang YS, Li Z, Guo JP, Zuo PB, Jiang CW, Xu XJ, Zhou ZL, Zou P.   +17 more
europepmc   +1 more source

Pengaruh penginapan ke atas disiplin pelajar di Universiti Tun Hussein Onn Malaysia [PDF]

, 2008
Kajian pengaruh penginapan ke atas disiplin pelajar di Universiti Tun Hussein Onn Malaysia (UTHM) ini memfokuskan kepada tiga objektif iaitu mengenal pasti tahap kriteria penginapan dari aspek fizikal dan bukan fizikal yang memberi kesan terhadap ...
Yaacob, Mohd Asmedi
core  

Nonlinear Gyrokinetic Simulation of the Magnetosphere‐Ionosphere Feedback Coupling

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract A nonlinear gyrokinetic simulation is applied to the magnetosphere‐ionosphere (M‐I) coupling system to investigate spontaneous growth of auroral structures and electron acceleration self‐consistently. Perturbations of electron density, potential and field‐aligned current in the auroral ionosphere develop through the feedback instability ...
T.‐H. Watanabe, K. Fujita, S. Maeyama
wiley   +1 more source

Traveling Ionospheric Disturbances in the Vicinity of Storm-Enhanced Density at Midlatitudes. [PDF]

J Geophys Res Space Phys, 2022
Zhang SR, Nishimura Y, Erickson PJ, Aa E, Kil H, Deng Y, Thomas EG, Rideout W, Coster AJ, Kerr R, Kerr R, Vierinen J.   +11 more
europepmc   +1 more source