Results 51 to 60 of about 4,801 (223)

Ionospheric Mechanisms Leading to Plasma‐Bubble Zonal Drift Reversal and Deformation During the 12 November 2025 Geomagnetic Storm

open access: yesSpace Weather, Volume 24, Issue 10, October 2026.
Abstract We present a multi‐instrument analysis of the ionospheric response to the intense geomagnetic storm of 12 November 2025 over the American sector, with emphasis on the longitudinally asymmetric deformation, latitudinal expansion, and zonal drift reversal of equatorial plasma bubbles (EPBs).
G. A. S. Picanço   +15 more
wiley   +1 more source

Chorus Wave‐Induced Ionospheric Variability

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Electron microbursts are short‐lived but intense electron precipitation and constitute a significant source of electron losses into the ionosphere and lower atmosphere. They are primarily produced by wave‐particle interaction with chorus waves in the magnetosphere.
Lunjin Chen   +5 more
wiley   +1 more source

A latitude survey of the night airglow [PDF]

open access: yes, 1964
Shipboard observations of night airglow and aurora using four-color turret ...
Davis, T. N., Smith, L. L.
core  

Long-lived meteor trails

open access: yesSolar-Terrestrial Physics, 2019
The paper presents data on long-lived (~20–40 min) meteor trails. We describe a group of soliton-type meteor trails expanding at transonic speeds. Radio sounding data evidences that the latter include ~7–8 min ionization trails.
Mikhalev A.V.   +8 more
doaj   +1 more source

The Daily Atmospheric Ionospheric Limb Imager (DAILI) CubeSat Experiment

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The Daily Atmospheric Ionospheric Limb Imager (DAILI) (Daily Atmospheric and Ionospheric Limb Imager) mission utilized a 6U CubeSat, deployed at about 410 km altitude in a 51‐degree orbit, to make simultaneous daytime limb measurements in two colors; at 630 nm to measure the OI (630 nm) redline and at 765 nm to measure the O2 ${\mathrm{O}}_{2}$
James H. Hecht   +15 more
wiley   +1 more source

Analyse von Turbulenz in Airglow-Imager-Daten mithilfe künstlicher Intelligenz

open access: yes, 2021
Trotz ihrer großen Bedeutung ist es eine Herausforderung, Schwerewellen in der UMLT (upper mesosphere / lower thermosphere) zu messen. Eine der wenigen Moglichkeiten bietet die OH*-Airglow-Schicht in einer Höhe von etwa 87 km.
Welscher, Andreas
core  

Simultaneous Measurements of Variations in the Artificial Airglow and the Total Electron Content of the Ionosphere Caused by Powerful Radio Waves of "Sura'' Facility [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2016
The results of simultaneous observations of variations in the artificial airglow in the red line of the optical spectrum of atomic oxygen (630 nm) and the total electron content (TEC) of the ionosphere measured along the propagation paths of the ...
D.A. Kogogin   +3 more
doaj  

Acoustic Wave Signatures of Earthquake Rupture Dynamics in the Upper Atmosphere

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract We perform three‐dimensional coupled earthquake‐atmosphere numerical simulations that integrate dynamic rupture, seismic wave propagation, and a compressible nonlinear atmospheric model to investigate how earthquake source parameters influence acoustic wave (AW) characteristics at 100–300 km altitude in the thermosphere.
Y. Kaneko   +5 more
wiley   +1 more source

Disentangling Stellar and Airglow Emission Lines from HST-COS Spectra [PDF]

open access: yes, 2023
H I Ly$\alpha$ (1215.67 \r{A}) and the O I triplet (1302.17, 1304.86, and 1306.03 \r{A}) are bright far-ultraviolet (FUV) emission lines that trace the stellar chromosphere.
France, Kevin   +3 more
core   +1 more source

The Impacts of Tropospheric Gravity Wave‐Generated MSTIDs on Skywaves at Mid‐latitude North American Sector Observed and Modeled Using SuperDARN HF Radars

open access: yesRadio Science, Volume 61, Issue 9, September 2026.
Abstract Trans‐ionospheric high frequency (HF: 3–30 MHz) response to atmospheric gravity waves (GWs) is studied in the middle‐latitude ionosphere in relation to thunderstorm activity. SuperDARN HF radar observations are compared against the model simulations to quantify the impact of GW‐generated medium‐scale traveling ionospheric disturbances (MSTID ...
S. Chakraborty   +5 more
wiley   +1 more source

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