Results 41 to 50 of about 3,254 (234)
Inversion of Wind and Temperature from Low SNR FPI Interferograms
Remote Sensing, 2023 The temperature and wind in the middle and upper atmosphere can be obtained by recording the Doppler shift and broadening of the airglow emission, which is reflected by the interference ring from a ground-based Fabry–Perot interferometer (FPI) system ...
Yafei Wei +6 more
doaj +1 more source
Eos, Transactions American Geophysical Union, 1971 The past 4 years have seen the continuation of considerable activity in airglow research. Patterns of changing emphasis are becoming clear, observations are tending to become more selective, and changes in technique have led to regular observations of dayglow, line widths in the nightglow, and observations in the middle and far ultraviolet, detection ...
openaire +1 more source
Green Emissions of Atomic Oxygen at Sprite Tops Explained
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract Green emissions from excited Oxygen in Sprite Tops (GhOSTs) are due to the 557 nm photons emitted from atomic oxygen (O) $(\mathrm{O})$ excited to the 1S state. In this work we compare the possible contribution of various mechanisms for excitation of O(S1) $\mathrm{O}({}^{1}S)$ under application of a lightning‐induced electric field to the ...
Brandon Smith +2 more
wiley +1 more source
AGU Advances, Volume 7, Issue 3, June 2026.Abstract Strong Thermal Emission Velocity Enhancement (STEVE) is a nightsky optical phenomenon of great research interest in recent years. STEVE is recognized to be co‐located with a latitudinally narrow channel of fast westward ion drifts, also known as “subauroral ion drifts” (SAID).
Jun Liang +7 more
wiley +1 more source
HF pump-induced electron heating and artificial airglow at high latitudes: Aspect angle dependence [PDF]
, 2002 Large electron temperature increases (~3000 K) in the ionospheric F-region, produced by powerful HF wave injection, were measured using the EISCAT incoherent scatter radar near Tromsø, Norway, on 7 October 1999.
Rietveld, M. T. +4 more
core
Observations of artificial and natural optical emissions at the HAARP facility [PDF]
, 2008 Extensive optical observations have been carried out at the High Frequency Active Auroral Research Program (HAARP) ionospheric heating facility since it began operations in 1999.
T. Pedersen +13 more
core +1 more source
PALACE v1.0: Paranal Airglow Line And Continuum Emission model [PDF]
Geoscientific Model DevelopmentBelow about 2.3 µm, the nighttime emission of the Earth's atmosphere is dominated by non-thermal radiation. Excluding aurorae, the emission is caused by chemical reaction chains that are driven by the daytime photolysis and photoionisation of ...
S. Noll +7 more
doaj +1 more source
Aerial and Space‐Borne Seismology on Venus: Viability and Design Implications for Future Missions
Earth and Space Science, Volume 13, Issue 6, June 2026.Abstract Venus' evolution remains a mystery because of the lack of in situ geophysical data to constrain its interior structure. Recently‐selected planetary missions VERITAS (NASA), DAVINCI+ (NASA), and EnVision (ESA) will investigate the planet's interior, surface, and atmospheric chemistry.
Quentin Brissaud +9 more
wiley +1 more source
Solar-Terrestrial Physics, 2018 Seasonal and interannual variations in the [OI] 630 nm atmospheric emission are studied from observations of airglow in Eastern Siberia. Among features of seasonal variation in this emission are a pronounced summer maximum, an autumn minimum, and a ...
Mikhalev A.V.
doaj +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.Abstract Capturing global ionospheric response during extreme geomagnetic storms remains a major observational challenge. During 10–11 May, 2024 superstorm, we investigate the height‐dependent response of the F‐region using multi‐constellation GNSS‐POD limb‐sounding measurements from COSMIC‐2, Spire, PlanetiQ, and FengYun‐3 satellites. Approximately 12,
Nimalan Swarnalingam +3 more
wiley +1 more source