Results 11 to 20 of about 14,994 (266)
Annals of Geophysics, 2021 . An intriguing and rare gravity wave event was recorded on the night of 25 April 2017 using a multi-wavelength all-sky airglow imager over northern Germany.
S. Sarkhel +7 more
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Atmosphere, 2021 Airglow observations, experimentations, and theoretical studies have significantly advanced our understanding of airglow in recent decades [...]
Tai-Yin Huang
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Earth and Planetary Physics, 2021 Observational evidence is insufficient to understand how equatorial plasma bubbles (EPBs) form over low latitudes. The mechanism of plasma-density enhancement (formation of “plasma blobs”) at low latitudes is in dispute.
LongChang Sun +4 more
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The Astrophysical Journal, 2023 H i Ly α (1215.67 Å) and the O i triplet (1302.17, 1304.86, and 1306.03 Å) are bright far-ultraviolet (FUV) emission lines that trace the stellar chromosphere.
Fernando Cruz Aguirre +3 more
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Anais da Academia Brasileira de Ciências, 2023 The thermal dynamics of the upper atmosphere, especially in the mesosphere, have been improving our understanding about the effects of climate change, as well as how the dynamics and general circulation in the upper atmosphere are driven by different ...
JOSÉ VALENTIN BAGESTON +8 more
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Atmosphere, 2022 The conversion of airglow intensity to volume emission rate (VER) is a common method for studying the ionosphere, but the contribution of the intensity conversion process to the uncertainty in estimated electron or ion density is significant.
Yi Duann +6 more
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Global‐Scale Observations and Modeling of Far‐Ultraviolet Airglow During Twilight [PDF]
Journal of Geophysical Research: Space Physics, 2019 The NASA Global‐scale Observations of the Limb and Disk ultraviolet imaging spectrograph performs observations of upper atmosphere airglow from the sunlit disk and limb of the Earth, in order to infer quantities such as the composition and temperature of
S. Solomon +6 more
semanticscholar +1 more source
Variability of the Brunt–Väisälä frequency at the OH∗-airglow layer height at low and midlatitudes
Atmospheric Measurement Techniques, 2020 . Airglow spectrometers, as they are operated within the Network for the Detection of Mesospheric Change (NDMC; https://ndmc.dlr.de, last access: 1 November 2020), for example, allow the derivation of rotational temperatures which are equivalent to the ...
S. Wüst +4 more
semanticscholar +1 more source
Trends in the Airglow Temperatures in the MLT Region—Part 1: Model Simulations
Atmosphere, 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
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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 +4 more
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