Results 81 to 90 of about 3,254 (234)

Study on the Imaging Interference of a Vortex-Light-Modulated Gaussian Beam

Photonics
Combined with vortex light and airglow, some different physical phenomena are presented in this paper. Based on the ground-based airglow imaging interferometer (GBAII) made by our group, a liquid crystal on silicon (LCoS) device on one arm of a wide ...
Yanghe Liu, Yuanhe Tang, Jian Zhou, Cunxia Li, Ningju Hui, Yishan Zhang, Yanlong Wang   +6 more
doaj   +1 more source

Registering upper atmosphere parameters in East Siberia with Fabry–Perot Interferometer KEO Scientific “Arinae”

Solar-Terrestrial Physics, 2017
We describe the Fabry—Perot interfero-meter designed to study Earth’s upper atmosphere. We propose a modification of the existing data processing method for determining the Doppler shift and Doppler widening and also for separating the observed line ...
Vasilyev R.V., Artamonov M.F., Beletsky A.B., Zherebtsov G.A., Medvedeva I.V., Mikhalev A.V., Syrenova T.E.   +6 more
doaj   +1 more source

Observations and Simulation of Thermospheric Composition Changes During the 14 October 2023 Solar Eclipse

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract This study presents a full‐period imaging of the thermospheric composition response to the 14 October 2023 annular solar eclipse, combining GOLD (Global‐scale Observations of the Limb and Disk) far‐ultraviolet observations with solar‐irradiance‐driven WACCM‐X (Whole Atmosphere Community Climate Model with thermosphere–ionosphere extension ...
Yu Jiao, Jing Liu, Xuguang Cai, Joseph M. McInerney, Shuhan Li   +4 more
wiley   +1 more source

Dataset of Quiet Space Weather Periods for Ionospheric Studies

Earth and Space Science, Volume 13, Issue 4, April 2026.
Abstract The ionosphere is a dynamic environment regularly affected from above and from below. This study identifies periods within the years 2000–2023 when the impact from above, driven by space weather, was minimal. The quiet space weather periods have wide usage for two types of ionospheric studies. At first, studies of isolated space weather events
Šimon Mackovjak, Silvia Kostárová, Jaroslav Chum, Carsten Schmidt, Patrick Hannawald, Sabine Wüst, Lisa Küchelbacher, Vladimír Truhlík, Petra Koucká Knížová, Jaroslav Urbář, Lukáš Randuška, Filip Štempel, Ján Kubančák   +12 more
wiley   +1 more source

Origin of [OI] 5577 in the airglow and the aurora

, 1959
The distribution of 5577 zenith intensities at stations in the subauroral zone is found to be unimodal with no discontinuity at the visual threshold.
Roach, Franklin K. ; McCaulley, James W. ; Marovich, Edward
core   +1 more source

OH Airglow for Ionospheric Seismology Applications—From Instrumental Noise Characterization to Rayleigh Waves Detection Threshold

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Airglow layers are powerful tracers of upper‐atmosphere dynamics because of their sensitivity to a broad spectrum of atmospheric wave phenomena. Seismic activity, and in particular Rayleigh waves, constitutes a forcing mechanism capable of generating infrasonic waves in the atmosphere.
P.‐Y. Froissart, P. Lognonné, P. Simoneau, K. Nishida, T. Ohminato   +4 more
wiley   +1 more source

OMTI Spectral Airglow Temperature Imager (SATI) at Shigaraki, Japan

, 2014
Optical Mesosphere Thermosphere Imagers (OMTIs) Spectral Airglow Temperature Imager (SATI) Data. The SATI measures airglow rotational temperature and airglow intensity in the mesopause region at 80-100km altitudes through the OH and O2 airglow emission ...
Kazuo Shiokawa, Yuichi Otsuka, ISEE IUGONET Metadata Management Group   +2 more
core  

High-latitude artificial aurora using the EISCAT high-gain HF facility [PDF]

, 2002
The EISCAT high-frequency (HF) transmitter facility at Ramfjord, Norway, has been used to accelerate F-region electrons sufficiently to excite the oxygen atoms and nitrogen molecules, resulting in optical emissions at 630, 557.7 and 427.8 nm.
Rietveld, M. T., Senior, A., Kavanagh, A. J., Isham, B., Kosch, M. J., McCrea, I. W., Honary, F., Kaila, K., Jussila, J., Holma, H., Hagfors, T.   +10 more
core  

Temporal and latitudinal 5577 Å airglow variations

, 1981
From 32 000 [O1] 5577 Å airglow limb observations made between April 1971 and December 1972 from the ISIS-2 satellite, the major temporal and spatial night airglow features have been identified.
J. S. Murphree, R. D. Elphinstone, L. L. Cogger   +2 more
core   +1 more source

Detection of wave activity in measurements of thermospheric vertical winds and temperatures at subauroral latitudes

Frontiers in Astronomy and Space Sciences
The need for high precision measurements of vertical winds with uncertainties on the scale of 3–5 m s−1 and a temporal cadence of 1–2 min to achieve detection of gravity wave (GW) structure has made it exceedingly difficult to study the response of the ...
Anneliese L. Schmidt, John W. Meriwether, Matthew B. Cooper, Andrew J. Gerrard, Lindsay V. Goodwin, Shun-Rong Zhang, Ying Ye   +6 more
doaj   +1 more source