Role of ordinary-to extraordinary mode wave coupling in ionospheric heating experiments. Final report, July 1983-August 1985

Technical Report · Tue Mar 01 04:00:00 EST 1988

OSTI ID:6798863

Abali, B; Seliga, T A; Aydin, K

Electromagnetic wave propagation in a plane stratified ionospheric plasma and its possible applications to high-power, high-frequency (HF) experiments are investigated. A theoretical and computational examination of ordinary- to extraordinary-mode wave coupling is made. This coupling occurs when the propagation is in the magnetic meridian, near the critical angle of incidence. The importance of the mode-coupling phenomenon in ionospheric heating experiments is discussed and demonstrated with numerical full wave solutions of the generalized differential equations governing radiowave propagation in a stratified ionosphere. Computational results indicate that mode coupling leads to intense absorption of radiowave energy near the plasma resonance level. The angular shape of the coupling window, in which the coupling is most effective, is found to be approximately circular with its width being a function of the gradient of the electron density.

• Research Organization: Ohio State Univ. Research Foundation, Columbus (USA)
• OSTI ID: 6798863
• Report Number(s): AD-A-195335/5/XAB; AS-S-121
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
DIFFERENTIAL EQUATIONS
DOCUMENT TYPES
EARTH ATMOSPHERE
ELECTRON DENSITY
ENERGY TRANSFER
EQUATIONS
HEAT TRANSFER
HEATING
IONOSPHERE
MATHEMATICS
NUMERICAL ANALYSIS
PLANETARY IONOSPHERES
PROGRESS REPORT
RESONANCE
STRATIFICATION
WAVE PROPAGATION