Results 71 to 80 of about 7,987 (248)

Model‐Based Analysis of Ionospheric TEC Disturbances Over China and Adjacent Regions During the May 2024 Super Geomagnetic Storm

Space Weather, Volume 24, Issue 8, August 2026.
Abstract This study uses observation data from multi‐constellation (GPS/GLONASS/Galileo/BeiDou) ground‐based Global Navigation Satellite Systems (GNSS) networks and a non‐integrated spherical harmonic function modeling methodology to develop an ionospheric Total Electron Content (TEC) model with high spatiotemporal resolution (1° × 1° in longitude and ...
Heng Xu, Wengeng Huang, Jiayue Yang, Hua Shen, Lei Zhang, Xin Wang   +5 more
wiley   +1 more source

Long-term variations of the upper atmosphere parameters on Rome ionosonde observations and their interpretation

Journal of Space Weather and Space Climate, 2017
A recently proposed self-consistent approach to the analysis of thermospheric and ionospheric long-term trends has been applied to Rome ionosonde summer noontime observations for the (1957–2015) period.
Perrone Loredana, Mikhailov Andrey, Cesaroni Claudio, Alfonsi Lucilla, Santis Angelo De, Pezzopane Michael, Scotto Carlo   +6 more
doaj   +1 more source

Response of Topside Ionospheric Electron Density During Solar Flares Using 2014–2024 Swarm Satellite Measurements

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract This paper presents a global statistical investigation into the topside ionosphere electron density response to X‐class solar flares during geomagnetically quiet conditions (Kp ≤ $\mathit{\le }$ 2) using Swarm satellites (462–511 km) data from 2014 to 2024.
Kenny Palo Monontsi, John Bosco Habarulema, Alessio Pignalberi, Christopher Dzivhuluwani Ndiitwani   +3 more
wiley   +1 more source

New observational capabilities for the thermosphere and ionosphere towards understanding the impacts of the lower atmosphere wave forcing [PDF]

, 2023
Guiping Liu, D. E. Rowland, S. England, R. S. Lieberman, Hanli Liu, Astrid Maute, N. M. Pedatella, Diego Janches   +7 more
openalex   +1 more source

Influence of Explicit Tropospheric VOC Chemistry on the Top‐Of‐Atmosphere Net Radiation Budget: Differences Between Two Preindustrial CESM2 Chemistry Configurations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract The representation of volatile organic compound (VOC) chemistry in earth system models directly impacts aerosol formation. Previous work shows explicitly representing VOC chemistry produces significant impacts on simulated climate compared to an implicit “SOAG scheme” that prescribes a bulk gas‐phase precursor to secondary organic aerosol (SOA)
Noah A. Stanton, Neil F. Tandon
wiley   +1 more source

Resolving thermospheric vertical wind ambiguities and energy processes

Frontiers in Astronomy and Space Sciences
This study applies a generalized vertical coordinate system approach alongside thermodynamic control volume analysis to explore the nuanced interpretations of energy transfer processes associated with vertical motion in the thermosphere.
Jeffrey P. Thayer, Jeffrey P. Thayer, Austin Coleman   +2 more
doaj   +1 more source

Estimating Surface Explosion Yield From Single‐Channel Infrasound Signals at Regional Distances With Random‐Forest Regression

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract When detonated on the Earth's surface, large explosions emit distinctive acoustic signatures that propagate over vast distances with relatively low attenuation in the form of infrasound. Infrasound stations hundreds of kilometers from the impulsive source can record the propagated pressure signal, atmospheric conditions permitting.
S. Awender, D. Fee, A. Witsil
wiley   +1 more source

Solar EUV flux from the triple ionosophere PhotoMeter onboard the Fengyun-3E satellite

Earth and Planetary Physics
The Triple Ionosphere Photometer (TRIPM) is a scientific payload aboard the Fengyun-3E (FY-3E) satellite, which operates in a dawn−dusk orbit. It is primarily designed for nadir observations of airglow emissions at OI 135.6 nm and N2 Lyman-Birge-Hopfield
Fang Jiang, Tian Mao, JinSong Wang, XiuQing Hu, Qian Song, LiPing Fu, Nan Jia, TianFang Wang   +7 more
doaj   +1 more source

Interannual Variability of Mean Winds and the Semidiurnal Tide in the Antarctic Summer Mesosphere‐Lower Thermosphere

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Long‐term observations at southern polar latitudes in the summertime mesosphere–lower thermosphere (MLT) reveal persistent nonmigrating semidiurnal tides, with the zonal wavenumber‐1 (s $s$ = 1) component being particularly dominant. Using nearly two decades of meteor radar wind measurements (80–100 km) from Davis Station (East Antarctica) and
R. A. Vincent, J.‐H. Kim, C. Lee, G. Jee, D. J. Murphy, I. M. Reid   +5 more
wiley   +1 more source

Winds and Tides of the Extended Unified Model in the Mesosphereand Lower Thermosphere Validated with Meteor RadarObservations

, 2021
Matthew J. Griffith, Shaun Martin Dempsey, D. R. Jackson, Tracy Moffat‐Griffin, N. J. Mitchell   +4 more
openalex   +1 more source