Results 11 to 20 of about 4,801 (223)

Ultrafast Kelvin waves in the MLT airglow and wind, and their interaction with the atmospheric tides [PDF]

Annales Geophysicae, 2018
Airglow and wind measurements from the Brazilian equatorial region were used to investigate the presence and the effects of the 3–4-day ultrafast Kelvin waves in the MLT.
F. Egito, R. A. Buriti, A. Fragoso Medeiros, H. Takahashi   +3 more
doaj   +4 more sources

Airglow and Aurorae at Dome A, Antarctica [PDF]

Publications of the Astronomical Society of the Pacific, 2012
Despite the absence of artificial light pollution at Antarctic plateau sites such as Dome A, other factors such as airglow, aurorae, and extended periods of twilight have the potential to adversely affect optical observations. We present a statistical analysis of the airglow and aurorae at Dome A using spectroscopic data from Nigel, an optical/near-IR ...
Sims, Geoff, Ashley, Michael C. B., Cui, Xiangqun, Everett, Jon R., Feng, LongLong, Gong, Xuefei, Hengst, Shane, Hu, Zhongwen, Lawrence, Jon S., Luong-van, Daniel M., Moore, Anna M., Riddle, Reed, Shang, Zhaohui, Storey, John W. V., Tothill, Nick, Travouillon, Tony, Wang, Lifan, Yang, Huigen, Yang, Ji, Zhou, Xu, Zhu, Zhenxi   +20 more
openaire   +3 more sources

Space-Based Limb-Imaging Spectrometer for Atmospheric O₂ Airglow Detection

Atmosphere
This paper presents a space-based limb-imaging spectrometer (LIS) for detecting atmospheric O2 airglow; it scans the atmosphere with a vertical range of 10–100 km and has a vertical resolution of 2 km. The LIS’s detection performance needs to be examined
Minjie Zhao, Haijin Zhou, Yu Jiang, Shuhua Huang, Xin Zhao, Yi Zeng, Jun Chen, Fenglei Liu, Xiaohan Qiu, Quan Zhang, Lei Zhu, Shimei Wang, Kai Zhan, Ge Yan, Fuqi Si   +14 more
doaj   +2 more sources

Quasi 6‐Day Wave Variability in the Thermosphere and Ionosphere: Observations and Modeling

Earth and Space Science
Satellite observations of the upper mesosphere and lower thermosphere from TIMED‐SABER and ICON‐MIGHTI reveal a clear Quasi 6‐Day Wave (Q6DW) event in the winds and temperatures in this region.
Oluwafisayo P. Owolabi, Scott L. England, Yen‐Jung Wu   +2 more
doaj   +2 more sources

The Impacts of Zonal and Meridional Winds on the Observed Occurrence Rate of Equatorial Plasma Bubbles

Geophysical Research Letters
Post‐sunset equatorial plasma bubble (EPB) formation is believe to be influenced by factors including thermospheric neutral winds. This study characterizes pre‐sunset neutral winds observed by ICON on EPB occurrences observed by GOLD over the east ...
V. J. Adkins, S. L. England, A. W. Stephan   +2 more
doaj   +2 more sources

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., Leyser, T. B., Kosch, M. J., Blagoveshchenskaya, N. F., Kornienko, V. A.   +4 more
core   +4 more sources

On the location and structure of the artificial 630-nm airglow patch over Sura facility [PDF]

, 2007
International audienceResults are presented of the artificial optical emission of the atomic oxygen red line (the radiation of level O(1D) with a wavelength of 630 nm) from the HF-pumped ionosphere, obtained in September 2004 at the SURA heating facility
Atroshenko, M. A., Grach, S. M., Kotov, P. V., M. A. Atroshenko, Yashnov, V. A., Kosch, M. J., Sergeev, E. N., M. J. Kosch, S. M. Grach, P. V. Kotov, E. N. Sergeev, V. A. Yashnov   +11 more
core   +2 more sources

The first coordinated observations of mid-latitude E-region quasi-periodic radar echoes and lower thermospheric 557.7-nm airglow [PDF]

Annales Geophysicae, 2005
We present the first coordinated observations of quasi-periodic (QP) radar echoes from sporadic-E (Es) field-aligned irregularities (FAIs), OI 557.7-nm airglow, and neutral winds in a common volume over Shigaraki, Japan (34.9° N, 136.1° E) on the ...
T. Ogawa, Y. Otsuka, F. Onoma, K. Shiokawa, M. Yamamoto   +4 more
doaj   +1 more source

Computing uncertainties in ionosphere‐airglow models: II. The Martian airglow [PDF]

Journal of Geophysical Research: Space Physics, 2012
One of the objectives of spectrometers onboard space missions is to retrieve atmospheric parameters (notably density, composition and temperature). To fulfill this objective, comparisons between observations and model results are necessary. Knowledge of these model uncertainties is therefore necessary, although usually not considered, to estimate the ...
Gronoff, Guillaume, Simon Wedlund, Cyril, Mertens, Christopher J., Barthélemy, Mathieu, Lillis, Robert J., Witasse, Olivier   +5 more
openaire   +2 more sources

Simulation and analysis of radiant intensity for critical [PDF]

E3S Web of Conferences
Atmospheric oxygen A-band (759-767nm) airglow has strong radiation intensity in the visible band, and the global atmospheric temperature field can be obtained based on the oxygen A-spectrum line.
Li Shaoze, Si Fuqi
doaj   +1 more source