Results 11 to 20 of about 9,625 (210)

Trends in the Airglow Temperatures in the MLT Region—Part 1: Model Simulations

open access: yesAtmosphere, 2020
Airglow intensity-weighted temperature variations induced by the CO2 increase, solar cycle variation (F10.7 as a proxy) and geomagnetic activity (Ap index as a proxy) in the Mesosphere and Lower Thermosphere (MLT) region were simulated to quantitatively ...
Tai-Yin Huang, Michael Vanyo
doaj   +1 more source

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

open access: yesAnnales 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   +4 more
doaj   +1 more source

Simulation and analysis of radiant intensity for critical [PDF]

open access: yesE3S 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

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

open access: yesAtmosphere, 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   +6 more
doaj   +1 more source

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

open access: yesAtmospheric 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   +3 more
doaj   +1 more source

Observations of the Near-infrared Spectrum of the Zodiacal Light with CIBER [PDF]

open access: yes, 2010
Interplanetary dust (IPD) scatters solar radiation which results in the zodiacal light that dominates the celestial diffuse brightness at optical and near-infrared wavelengths.
Battle, J.   +16 more
core   +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

open access: yesEarth 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   +3 more
doaj   +1 more source

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

open access: yesAnnales 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   +3 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

open access: yesGeophysical 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   +7 more
doaj   +1 more source

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

open access: yesJournal 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   +5 more
openaire   +2 more sources

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