Results 61 to 70 of about 12,606 (256)

AURORA AND AIRGLOW [PDF]

open access: yesNature, 1970
Atmospheric Emissions Edited by Billy M. McCormac and Anders Omholt. (Proceedings of the NATO Advanced Study Institute held at the Agricultural College of Norway, As, Norway, July 29–August 9, 1968.) Pp. xi + 563. (Van Nostrand Reinhold: New York and London, November 1969.) 234s.
openaire   +2 more sources

Seasonal variations of O2 atmospheric and OH(6−2) airglowand temperature at mid-latitudes from SATI observations [PDF]

open access: yesAnnales Geophysicae, 2004
More than 3 years of airglow observations with a Spectral Airglow Temperature Imager (SATI) installed at the Sierra Nevada Observatory (37.06°N, 3.38°W) at 2900m height have been analyzed.
M. J. López-González   +10 more
doaj   +1 more source

Observations of Diffuse Ultraviolet Emission from Draco

open access: yes, 2010
We have studied small scale (2 arcmin) spatial variation of the diffuse UV radiation using a set of 11 GALEX deep observations in the constellation of Draco.
Boffi   +28 more
core   +1 more source

Longitudinal Variability of Pre‐Midnight Equatorial Plasma Bubbles Under Disturbed Geomagnetic Conditions

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Equatorial plasma bubbles (EPBs) pose significant challenges to trans‐ionospheric radio communication and navigation systems. Because of their disruptive effects, evaluating and predicting them is key for the development of space systems. The influence of geomagnetic activity on EPBs remains unclear, partly due to limited low‐latitude neutral ...
Gilda de Lourdes González   +6 more
wiley   +1 more source

Mountain Waves and Thermal Tides of the Venusian Atmosphere Analyzed Through Thermal Infrared Images and Radio Occultation

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Thermal infrared imaging by Longwave Infrared Camera (LIR) aboard JAXA's Venus orbiter Akatsuki has revealed horizontal structures of large‐scale topographic gravity waves (mountain waves) and thermal tides in the Venusian atmosphere. For quantitative analysis of these waves, we developed a radiative transfer model for an atmosphere perturbed ...
Z. Guo   +5 more
wiley   +1 more source

Statistics and variability of the altitude of elves

open access: yesGeophysical Research Letters, 2016
From June 2008 to January 2016 nearly 800 elves have been recorded by a low‐light camera in northeastern Spain. Elves occur in this region mainly over the lower topped cold air mass maritime thunderstorms, peaking from November to January.
Oscar A. van derVelde, Joan Montanyà
doaj   +1 more source

PALACE v1.0: Paranal Airglow Line And Continuum Emission model [PDF]

open access: yesGeoscientific Model Development
Below about 2.3 µm, the nighttime emission of the Earth's atmosphere is dominated by non-thermal radiation. Excluding aurorae, the emission is caused by chemical reaction chains that are driven by the daytime photolysis and photoionisation of ...
S. Noll   +7 more
doaj   +1 more source

Regional Medium‐Scale Traveling Ionospheric Disturbance Propagation Model Based on BDS GEO Satellites

open access: yesSpace Weather, Volume 24, Issue 1, January 2026.
Abstract Accurate modeling of traveling ionospheric disturbances (TIDs) is essential for characterizing their spatiotemporal variations and mitigating their effects on Global Navigation Satellite System (GNSS) precise positioning. This study develops a regional medium‐scale TID (MSTID) propagation model using BeiDou geostationary orbit (GEO) total ...
Dengkui Mei   +5 more
wiley   +1 more source

Freshly Generated Super Sunrise Plasma Bubbles During the Geomagnetic Storm on November 5–6, 2023

open access: yesSpace Weather, Volume 24, Issue 1, January 2026.
Abstract During the geomagnetic storm on November 5–6, 2023, freshly generated super sunrise equatorial plasma bubbles (EPBs) and associated irregularities over the 80°–140°E sector were observed combining ground‐based and space observations from GNSS, ionosondes, HF Doppler records, and several satellite missions (COSMIC2, Swarm, and DMSP).
Ke Li   +7 more
wiley   +1 more source

Upper atmosphere research at the Instituto Nacional de Pesquisas Espaciais of Brazil [PDF]

open access: yesGeofísica Internacional, 2004
Upper atmosphere research at the Instituto Nacional de Pesquisas Espaciais of Brazil is concentrated in the areas of photochemistry and dynamics of the mesopause and lower thermosphere, middle atmosphere climatology, and stratospheric aerosols.
D. M. Simonich   +5 more
doaj  

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