THEORETICAL STUDIES OF IONOSPHERIC WAVE MOTION.
Abstract
Work reported concerns theoretical study of wave propagation in a vertically inhomogeneous medium consisting of electron-ion plasma and neutral gas, with special reference to the ionosphere. General system equations developed on a previous project are used as a basis for this work. The work consists of four separate but related studies of various aspects of wave propagation in this type of medium. Section I is a summary of the project work. Remaining sections are reports on individual studies. Section 2 reports a study of wave propagation in a compressible, inhomogeneous, lossy electron plasma. Coupling between electroacoustic and electromagnetic waves is studied through WKB methods with numerical results showing the variation of coupling effects as frequency is varied. Section 3 is a study of approaches to simplification of the equation system through physical arguments to jestify neglect of certain effects. Section 4 is an analytical-numerical approach to solution of the general equations. The state-transition matrix for the general system is found and illustrative numerical results for certain ionospheric parameter regimes are shown. Section 5 deals with use of the method of characteristics to solve problems of wave propagation in a plasma medium. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1969
- Accession Number
- AD0708181
Entities
People
- Harold R. Raemer
- John C. Field
- Yash Pal Verma
Organizations
- Northeastern University