Physics
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jatp...43..437o&link_type=abstract
(International Symposium on Equatorial Aeronomy - I, 6th, Aguadilla, PR, July 17-23, 1980.) Journal of Atmospheric and Terrestri
Physics
173
Equatorial Atmosphere, Ionospheric Disturbances, Ionospheric Drift, Magnetohydrodynamic Stability, Spread F, Atmospheric Models, Elementary Particle Interactions, Ionospheric Currents, Plasma Density, Plasma Drift, Taylor Instability
Scientific paper
A review is presented of the equatorial spread-F (ESF) theories which use plasma mechanisms as a basis, with attention given to linear and nonlinear theories. It was first suggested by Martyn (1959) that ESF was a manifestation of the E x B gradient drift instability. However, since most ESF phenomena could not be explained by the linear theory, several nonlinear theories have been proposed. Haerendel (1972, 1974) suggested that the range wavelengths observed during ESF were due to a hierarchy of multistep processes. Hudson et al. (1973) suggested that the smallest scale irregularities, i.e., those observed by coherent backscatter radar techniques, were due to a two step process. Simulation studies are also reviewed: Scannapieco and Ossakow (1976) performed the first numerical simulation of the long wavelength collisional Rayleigh-Taylor (R-T) instability mechanism in the nighttime equatorial F-region ionosphere, showing that the R-T instability generated irregularities and plasma bubbles on the bottomside of the nighttime F-region. The basic physical picture of the ESF is presented, and remaining problem areas are summarized.
No associations
LandOfFree
Spread-F theories - A review does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spread-F theories - A review, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spread-F theories - A review will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-994249