Accession Number : ADA136396

Title :   Phenomenology of Structured Plasma in the Ionosphere.

Descriptive Note : Technical rept.,

Corporate Author : SRI INTERNATIONAL MENLO PARK CA

Personal Author(s) : Vickrey,J F ; Cousins,M D ; Tsunoda,R T ; Walker,N B ; Livingston,R C

PDF Url : ADA136396

Report Date : 01 Mar 1983

Pagination or Media Count : 100

Abstract : This report summarizes the results of the past year's efforts at SRI International to investigate experimentally and theoretically the processes that control the evolution of plasma structure in the natural and the nuclear environments. Important new results include a description of the anisotropy of large-scale and scintillation-producing plasma density irregularities at high latitudes and its convection domination, the refinement of a method to extract true irregularity drifts from spaced-receiver measurements, the first experimental observations of the formation of image striations, a model of image formation that shows the process (in agreement with observations) to be highly scale-size selective, and evidence that the previously puzzling seasonal patterns of equatorial spread-F occurrence are a result of the seasonal changes in the time of sunset in the conjugate E layers.

Descriptors :   *Scintillation, *Striations, *Ionosphere, *Plasmas(Physics), Electron Density, F Region, High Latitudes, Anisotropy, Equatorial Regions, Ionospheric models, Nuclear explosions, Convection, E region, Coupling(Interaction), Low altitude, Aurorae, Sunset, Drift

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE