Results 21 to 30 of about 4,801 (223)

The observation of chemiluminescent NiO* emissions in the laboratory and in the night airglow [PDF]

Atmospheric Chemistry and Physics, 2011
The recent finding of an orange spectral feature in OSIRIS/Odin spectra of the night airglow near 87 km has raised interest in the origin of the emission.
W. F. J. Evans, R. L. Gattinger, A. L. Broadfoot, E. J. Llewellyn   +3 more
doaj   +1 more source

FIRST RESULTS FROM MESOSPHERIC AIRGLOW OBSERVATIONS AT 7.5° S

Brazilian Journal of Geophysics, 2001
The Cariri Airglow Observatory has been in operation since November, 1997. This observatory has a multi-filter photometer to measure the airglow emission intensities in the frequencies of OI557.7 nm, OI630.0 nm, NaD, OH(6,2) band ...
R. A. Buriti, H. Takahashi, D. Gobbi
doaj   +1 more source

All-Sky Imager Observations of the Latitudinal Extent and Zonal Motion of Magnetically Conjugate 630.0 nm Airglow Depletions

Atmosphere, 2020
630.0 nm all-sky imaging data are used to detect airglow depletions associated with equatorial spread F. Pairs of imagers located at geomagnetically conjugate locations in the American sector at low and mid-latitudes provide information on the occurrence
Carlos Martinis, Dustin Hickey, Joei Wroten, Jeffrey Baumgardner, Rebecca Macinnis, Caity Sullivan, Santiago Padilla   +6 more
doaj   +1 more source

Midlatitudinal Special Airglow Structures Generated by the Interaction Between Propagating Medium‐Scale Traveling Ionospheric Disturbance and Nighttime Plasma Density Enhancement at Magnetically Quiet Time

Geophysical Research Letters, 2019
This paper reports a special midlatitudinal medium‐scale traveling ionospheric disturbance (MSTID) event, accompanied by a poleward surge of airglow depletion/enhancement and a bifurcation of depletion during the magnetically quiet period.
Longchang Sun, Jiyao Xu, Chao Xiong, Yajun Zhu, Wei Yuan, Lianhuan Hu, Weijun Liu, Gang Chen   +7 more
doaj   +1 more source

A simulation study of 630 nm and 557.7 nm airglow variations due to dissociative recombination and thermal electrons by high-power HF heating

Earth and Planetary Physics, 2017
One of the important effects of the ionospheric modification by high-power waves is the airglow enhancement. Both the thermal electrons and the dissociation recombination contribute to generate the airglow emissions during HF heating.
Tong Dang, JiuHou Lei, XianKang Dou, WeiXing Wan   +3 more
doaj   +1 more source

Studying a Long-Lasting Meteor Trail from Stereo Images and Radar Data

Atmosphere, 2021
Unique observation of a long-lasting meteor trail of about half an hour duration is described. The trail resulted from a burning meteor from the Leonid storm flux in the middle latitudes over eastern Siberia.
Roman V. Vasilyev, Tatyana E. Syrenova, Alexander B. Beletsky, Maxim F. Artamonov, Eugeny G. Merzlyakov, Aleksey V. Podlesny, Mark V. Cedric   +6 more
doaj   +1 more source

Extraction of Quasi-Monochromatic Gravity Waves from an Airglow Imager Network

Atmosphere, 2020
An algorithm has been developed to isolate the gravity waves (GWs) of different scales from airglow images. Based on the discrete wavelet transform, the images are decomposed and then reconstructed in a series of mutually orthogonal spaces, each of which
Chang Lai, Wei Li, Jiyao Xu, Xiao Liu, Wei Yuan, Jia Yue, Qinzeng Li   +6 more
doaj   +1 more source

Automated Detection and Tracking of Equatorial Plasma Bubbles Utilizing Global‐Scale Observations of the Limb and Disk (GOLD) 135.6 nm Data

Earth and Space Science, 2023
Equatorial plasma bubbles (EPBs) are regions of depleted plasma within the ionosphere that form during post‐sunset hours near the magnetic equator. EPBs tend to align with local geomagnetic field lines, extend hundreds of kilometers along geomagnetic ...
V. J. Adkins, S. L. England
doaj   +1 more source

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, Sheng-Yang Gu, Zhenlin Yang, Cong Huang, Na Li, Guoyuan Hu, Xiankang Dou   +6 more
doaj   +1 more source

The global O₂ airglow field as seen by the MATS satellite: strong equatorial maximum and planetary wave influence [PDF]

Atmospheric Chemistry and Physics
The Mesospheric Airglow/Aerosol Tomography and Spectroscopy (MATS) satellite was launched in November 2022, carrying as its main instrument a limb-viewing telescope with six spectral channels designed to image atmospheric O2 airglow and noctilucent ...
B. Linder, L. Krasauskas, L. Megner, D. P. Murtagh   +3 more
doaj   +1 more source