Results 201 to 210 of about 92,748 (240)

On the occurrence of equatorial spread-F in the evening hours

Journal of Atmospheric and Terrestrial Physics, 1986
By comparing electron drift velocities at Jicamarca with corresponding ionograms and VHF radio scintillation records at Huancayo it has been shown that the day-to-day variability in the occurrence of equatorial spread-F irregularities in the post-sunset period depends critically on the time of reversal of the Sq electric field.
openaire   +1 more source

Joule dissipation in F-region and equatorial spread-F events

Nature, 1978
The dissipation of turbulent electric fields varying with time, which are associated with spread-F in equatorial regions, has been thought to cause significant heating of the neutral atmospheric gases at F-region altitudes and higher1. The time-varying electric fields have been shown to exist during spread-F at Jicamarca2, and the two phenomena are ...
T. N. RAJARAMAN, J. N. DESAI, S. S. DEGAONKAR, K. D. COLE   +3 more
openaire   +1 more source

Stochastic field theory for the ionospheric fluctuations in Equatorial Spread F

Chaos, Solitons & Fractals, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Materassi, Massimo
openaire   +4 more sources

Three-Dimensional Modeling of Equatorial Spread F

2011
The Naval Research Laboratory (NRL) has recently developed a three-dimensional code to study equatorial spread F (ESF). The code is based on the comprehensive NRL 3D ionosphere model SAMI3 and includes a potential equation to self-consistently solve for the electric field.
J.D. Huba, G. Joyce, J. Krall
openaire   +1 more source

ALTAIR Radar Study of Equatorial Spread F.

1981
Abstract : The results of research on equatorial spread-F (ESF) phenomena obtained by using two backscatter radars, ALTAIR and TRADEX, are summarized. The radar measurements were made in support of three rocket campaigns conducted from the Kwajalein Atoll during the summers of 1977 through 1979.
openaire   +1 more source

Effects of the vertical plasma drift velocity on the generation and evolution of equatorial spread F

, 1999
B. Fejer, L. Scherliess, E. R. Paula
semanticscholar   +1 more source

Comparison of Observed Equatorial Spread-F Statistics between Two Longitudinally Separated Magnetic Equatorial Stations and the IRI-2016 Model during Low and High Solar Activities

Advances in Space Research, 2022
P. Thammavongsy, P. Supnithi, L. Myint, S. Sripathi, K. Hozumi, D. Lakanchanh   +5 more
semanticscholar   +1 more source

On seeding equatorial spread F: Parallel or transverse transport?

Journal of Atmospheric and Solar-Terrestrial Physics, 2013
Abstract There is considerable current interest in how the spawning of equatorial plasma bubbles (EPBs) is affected by the nature of the plasma-seeding process. The process most likely involves an atmospheric gravity-wave and coupling of its wind perturbations to the plasma in the bottomside of the F layer. Neutral-ion coupling can occur either via
openaire   +1 more source

Linear theory and modeling of the Rayleigh‐Taylor instability leading to the occurrence of equatorial spread F

, 1996
P. J. Sultan
semanticscholar   +1 more source

Equatorial Spread-F and F-Layer Heights

Nature, 1960
A. J. LYON, N. J. SKINNER, R. W. WRIGHT
openaire   +1 more source