Results 81 to 90 of about 7,987 (248)

Latitudinal Discrepancy Between Thermospheric Density and Temperature Associated With Neutral Composition Effect

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract In this study, multi‐source thermospheric observations and TIEGCM simulations were used to explore the latitudinal variations of thermospheric temperature and total mass density at equinoxes. At nighttime, temperature and density exhibit consistent latitudinal patterns, with higher values at high latitudes.
Zhongli Li, Xiaoli Luan, Jiuhou Lei, Dexin Ren   +3 more
wiley   +1 more source

Infrared Radiation in the Thermosphere From 2002 to 2023

Geophysical Research Letters
Twenty‐two years (2002–2023) of infrared radiative cooling rate data derived from the SABER instrument on the NASA TIMED satellite are presented. Global daily and global annual infrared power (Watts, W) emitted by nitric oxide (NO) and carbon dioxide ...
Martin G. Mlynczak, Linda Hunt, Nabil Nowak, B. Thomas Marshall, Christopher J. Mertens   +4 more
doaj   +1 more source

Monthly climatologies of zonal-mean and tidal winds in the thermosphere as observed by ICON/MIGHTI during April 2020-March 2022 [PDF]

, 2023
Yosuke Yamazaki, Brian J. Harding, Lihui Qiu, Claudia Stolle, Tarique Adnan Siddiqui, Yasunobu Miyoshi, Christoph R. Englert, S. England   +7 more
openalex   +1 more source

Physics‐Embedded Deep Learning Reveals the Memory Effect of Ionospheric Electron Density in Response to Solar EUV Forcing

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Precise characterization of the electron density profile is crucial for optimizing high frequency communications. Reconstruction models often assume an instantaneous ionospheric response to solar forcing or using time delays, neglecting the time‐integrated cumulative “memory effect” of plasma dynamics.
Hongwei Gong, Hanxian Fang, Die Duan, Chao Xiao, Jintai Li, Chenghao Li, Hongtao Huang, Ganming Ren, Chuyue Zhou, Han Wu   +9 more
wiley   +1 more source

Vertical damping of gravity waves evaluated from ACS-TGO solar occultation measurements on Mars

Frontiers in Astronomy and Space Sciences
Amplitudes of gravity waves generated in the lower and denser atmospheric layers grow exponentially with height as they propagate to the upper and thinner atmosphere, where they are reduced by various processes.
Ekaterina D. Starichenko, Alexander S. Medvedev, Denis A. Belyaev, Anna A. Fedorova, Alexander Trokhimovskiy, Paul Hartogh, Franck Montmessin, Oleg I. Korablev   +7 more
doaj   +1 more source

Equinoctial asymmetry of a low-latitude ionosphere-thermosphere system and equatorial irregularities: evidence for meridional wind control [PDF]

, 2009
Takashi Maruyama, Susumu Saito, M. Kawamura, Kengo Nozaki, J. Krall, J. D. Huba   +5 more
openalex   +1 more source

First Kinetic 3‐D Simulations of the High‐Latitude Electrojet Spanning an Entire Turbulent Flux Tube

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Radar and rocket observations of the terrestrial ionosphere frequently measure turbulent plasma waves, especially during geospace storms. The non‐linear behavior of these waves remains poorly characterized. This paper presents the first fully kinetic 3‐D particle‐in‐cell simulations of Farley–Buneman (FB) turbulence spanning an entire high ...
Meers Oppenheim, Y. Dimant, R. Koontaweepunya, A. Q. Green, S. Evans   +4 more
wiley   +1 more source

Center for geospace storms graduate student workshop

Frontiers in Astronomy and Space Sciences
The US National Aeronautics and Space Administration (NASA) DRIVE Center for Geospace Storms (CGS) hosted a workshop for graduate students conducting research in geospace science in November 2024.
Amy Keesee, Viacheslav G. Merkin, Michael Wiltberger, Stephen Hale, Eric Winter, Nikhil Rao   +5 more
doaj   +1 more source

GOLD Nighttime Limb Observations: A New Data Set for Investigating the Altitude‐Latitude Structure and Temporal Variability of the Equatorial Ionization Anomaly

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Using NASA's Global‐scale Observations of the Limb and Disk (GOLD)'s Dark Limb Mode (DLM) observations, we provide a multi‐year characterization of nighttime Equatorial Ionization Anomaly (EIA) morphology and variability. From geostationary orbit, GOLD measures OI 135.6 nm limb radiance at ∼33°E and ∼128°W longitudes, yielding routine, time ...
Deepak K. Karan, Fazlul I. Laskar, Saurav Aryal, Richard W. Eastes, J. Scott Evans   +4 more
wiley   +1 more source

Comparison of ICON/MIGHTI and TIMED/TIDI Neutral Wind Measurements in the Lower Thermosphere [PDF]

, 2021
Manbharat Dhadly, Christoph R. Englert, D. P. Drob, J. T. Emmert, R. J. Niciejewski, Kate Zawdie   +5 more
openalex   +1 more source