Results 41 to 50 of about 714 (187)
Abstract Strong Thermal Emission Velocity Enhancement (STEVE) is a nightsky optical phenomenon of great research interest in recent years. STEVE is recognized to be co‐located with a latitudinally narrow channel of fast westward ion drifts, also known as “subauroral ion drifts” (SAID).
Jun Liang +7 more
wiley +1 more source
Scientific goals of optical instruments of the National Heliogeophysical Complex
Studies of the upper atmosphere have to be performed using optical photometric and spectrometric means. Modern devices allow precise photometry of the glow of the night atmosphere — airglow — with high temporal spatial and spectral resolution.
Vasilyev R.V. +11 more
doaj +1 more source
Application of tomographic inversion in studying airglow in the mesopause region [PDF]
It is pointed out that observations of periodic nightglow structures give excellent information on atmospheric gravity waves in the mesosphere and lower thermosphere.
T. Nygrén +3 more
doaj +1 more source
Aerial and Space‐Borne Seismology on Venus: Viability and Design Implications for Future Missions
Abstract Venus' evolution remains a mystery because of the lack of in situ geophysical data to constrain its interior structure. Recently‐selected planetary missions VERITAS (NASA), DAVINCI+ (NASA), and EnVision (ESA) will investigate the planet's interior, surface, and atmospheric chemistry.
Quentin Brissaud +9 more
wiley +1 more source
Within substorm activations during two superstorms (2000 and 2003) from the observations at mid-latitude geomagnetic observatories, we study short-period irregular geomagnetic pulsations and airglow in the 557.7 nm and 630.0 nm atomic oxygen emission ...
Yu. Yu. Klibanova +5 more
doaj +1 more source
Abstract Capturing global ionospheric response during extreme geomagnetic storms remains a major observational challenge. During 10–11 May, 2024 superstorm, we investigate the height‐dependent response of the F‐region using multi‐constellation GNSS‐POD limb‐sounding measurements from COSMIC‐2, Spire, PlanetiQ, and FengYun‐3 satellites. Approximately 12,
Nimalan Swarnalingam +3 more
wiley +1 more source
Simultaneous Measurements of Variations in the Artificial Airglow and the Total Electron Content of the Ionosphere Caused by Powerful Radio Waves of "Sura'' Facility [PDF]
The results of simultaneous observations of variations in the artificial airglow in the red line of the optical spectrum of atomic oxygen (630 nm) and the total electron content (TEC) of the ionosphere measured along the propagation paths of the ...
D.A. Kogogin +3 more
doaj
Seasonal variations of O2 atmospheric and OH(6−2) airglowand temperature at mid-latitudes from SATI observations [PDF]
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
Abstract Medium‐Scale Traveling Ionospheric Disturbances (MSTIDs) are prominent wave‐like structures in the ionosphere, with complex generation mechanisms involving both atmospheric gravity waves (GWs) and electrodynamic instabilities such as the Perkins instability (PI).
Jing Liu +4 more
wiley +1 more source
Abstract The vertical shear of horizontal neutral winds plays an important role in forming dense metallic layers in the E region. Previous studies suggest that metal ion layers may inhibit equatorial plasma bubble (EPB) development by enhancing E‐region Pedersen conductivity.
Minjing Li +3 more
wiley +1 more source

