F-region nightglow emissions of atomic oxygen. II - Analysis of 6300 angstrom and electron density data
F-region nightglow emissions of atomic oxygen - analysis of 6300 angstrom and electron density data
ATMOSPHERIC EMISSION↗
SEARCH · Search NASA
Results for “F LAYER”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Recombination Coefficient of the Nighttime F-region from Incoherent Scatter Measurements Scientific Report No. 279
Recombination coefficient of nighttime F-region from incoherent scatter measurements
RECOMBINATION COEFFICIENT↗
Equatorial geomagnetic anomaly and its associated current system.
Equatorial F-region electron density distribution is natural steady state distribution for charged fluids as shown by momentum transport equation for charged gaseous fluids
TRANSPORT EQUATION↗
Photo electron energy distribution in the F region.
Photoelectron energy distribution in F region
ELECTRON ENERGY↗
F-region nightglow emissions of atomic oxygen. I - Theory.
Nightglow emission from atomic oxygen caused by dissociative recombination in F region
AIRGLOW↗
Nighttime variations of F-region electron density profiles at Puerto Rico. II - An attempt to separate the effects of temperature variation and drift velocity.
Temporal variations in temperature and drift velocity in ionosphere determined from nighttime variations of F-region electron density profiles at Puerto Rico
IONOSPHERIC ELECTRON DENSITY↗
Electron densities and temperatures in the F- region from backscatter measurements at Arecibo.
Diurnal variation in electron densities and temperatures in F region above Puerto-Rico, using backscatter measurements
ELECTRON TEMPERATURE↗
Ionospheric electron content at temperate latitudes during the declining phase of the sunspot cycle.
Ionospheric electron content at temperature latitudes during declining phase of sunspot cycle determined by observation of Faraday effect
F LAYER↗
Ionospheric rarefaction following rocket transit.
Decrease in electron density of ionospheric F region following passage of powered rocket
ROCKET FLIGHT↗
A theoretical model for the magnetic declination effect in the ionospheric F region
Theoretical model for geomagnetic anomaly in ionospheric F region
IONOSPHERE↗
Ground-based studies of the F region in the vicinity of the midlatitude trough.
Oblique echo presence during winter nights on auroral and subauroral latitudes ionograms, analyzing electron number density of nighttime F region in midlatitude trough vicinity
IONOSPHERIC ELECTRON DENSITY↗
A theoretical model for the magnetic declination effect in the ionospheric F region.
Latitudinal and vertical current components effects included in longitudinal current system supporting steady state distribution in geomagnetic anomaly
IONOSPHERIC CURRENT↗
Direct measurements bearing on the question of the nighttime heating mechanism in the ionosphere.
Electron temperature and density in F region analyzed for nighttime heating, using Langmuir probe measurements
ELECTRON TEMPERATURE↗
F-region irregularities studied by scintillation of signals.
F region irregularities studied by scintillation of radio signals from earth satellites
IONOSPHERIC IRREGULARITY↗
The cooling of ionospheric electrons by inelastic collisions with O/3P/
F 2 layer heating by photoelectrons reconsidered in terms of electron inelastic collisions effect on temperature
Whitten, R. C.↗
Calculations for an equatorial F2-region solar eclipse
Solar eclipse effects on equatorial F 2 layer by transient solutions of time dependent continuity equation, calculating electron concentrations
Hanson, W. B.↗
The midlatitude ionospheric response to fluctuations in solar activity under low geomagnetic activity conditions
The ionospheric response, which is the sensitivity and delay of the electron content to the 270 day fluctuations of solar radiation has been theoretically analyzed. In the context of the present work the sensitivity is defined as the magnitude of the electron content fluctuation for a given change in solar flux, and the delay is defined as the timeshift of the response of the electron content to fluctuations in solar flux. Both the model in which the action of neutral winds on the F-2 layer is disregarded and that in which the wind effect is included as part of a positive feedback mechanism, are studied. It is shown that the neutral winds play a dominant role in the mentioned ionospheric response. The computed delays decrease with increasing solar activity in both models.
Bendito, J. L.↗
The partially aligned gradient instability in the ionosphere
Ionization irregularities which are almost but not exactly aligned along the magnetic field may grow much more rapidly than purely aligned irregularities in the presence of a background gradient of ionization and current flow. The stability of these irregularities is considered, taking into account the finite thickness of the gradient and shear in the ion motion. It is shown in particular that the normal E region of the ionosphere is usually stable, whereas sporadic E is often unstable, and this may limit the compression of metallic ions to form such layers. The F region may sometimes be unstable. Temperate zone conditions are considered throughout.
Whitehead, J. D.↗