Results 71 to 80 of about 9,625 (210)
Mesoscale Stationary Features in the Dayside Clouds of Venus
Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.Abstract We present new detections of mesoscale stationary features, which are interpreted as gravity waves, on the dayside clouds of Venus. These come from an analysis of images from two instruments onboard different spacecrafts: Visible and InfraRed Thermal Imaging Spectrometer—Mapper (VIRTIS‐M) on Venus Express (VEx) and IR2 on Akatsuki.
J. E. Silva +9 more
wiley +1 more source
HF-induced airglow at magnetic zenith: theoretical considerations [PDF]
Annales Geophysicae, 2005 Observations of airglow at 630nm (red line) and 557.7nm (green line) during HF modification experiments at the High Frequency Active Auroral Research Program (HAARP) heating facility are analyzed.
E. V. Mishin, W. J. Burke, T. Pedersen
doaj +1 more source
Observations of Diffuse Ultraviolet Emission from Draco
, 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
Space Weather, Volume 24, Issue 3, March 2026.Abstract This study investigates the linkage between mesopause gravity waves and equatorial plasma bubbles (EPBs) from 2012 to 2015 using the collocated nightglow measurements, O2 (762 nm) and OI (630 nm), observed by the Visible and near‐Infrared Spectral Imager onboard the International Space Station under the Ionosphere, Mesosphere, upper Atmosphere,
Min‐Yang Chou +5 more
wiley +1 more source
Statistics and variability of the altitude of elves
Geophysical 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
Plasma Conditions Govern the Reversible Transition Between STEVE and Picket Fence Emissions
Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.Abstract On 6 May 2018, a remarkable subauroral optical event exhibiting three phases of evolution (Strong Thermal Emission Velocity Enhancement [STEVE] → Picket Fence → STEVE) and co‐occurrence with a stable auroral red arc was observed over Alberta, Canada.
Jinghan Wang +3 more
wiley +1 more source
, 2001 Far Ultraviolet Spectroscopic Explorer observations are presented for WD0621-376, a DA white dwarf star in the local interstellar medium (LISM) at a distance of about 78 pc.
C. Gry +12 more
core +2 more sources
On the Energy Source of Green Emissions in Ghost
Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.Abstract The understanding on the formation mechanism of ghosts as a new category of transient luminous events and favorable conditions for their occurrence is limited. In this work, we examined six ground‐based observations of ghost events captured by digital SLR cameras.
Xin Huang +7 more
wiley +1 more source
Upper atmosphere research at the Instituto Nacional de Pesquisas Espaciais of Brazil [PDF]
Geofísica 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
First observation of the Venus UV dayglow at limb from SPICAV/VEX
Geophysical Research Letters, 2012 We present the first limb observations of the dayglow emissions by the UV channel of SPICAV aboard Venus Express between October and December 2011. The CO Cameron bands between 180–260 nm and CO2+ doublet at 289 nm are clearly identified for the first ...
Jean‐Yves Chaufray +2 more
doaj +1 more source