Effects of irregularity anisotropy on Faraday polarization fluctuations

Journal Article · Wed Nov 01 04:00:00 EST 1989 · Journal of Geophysical Research; (USA)

DOI:https://doi.org/10.1029/JA094iA11p15421· OSTI ID:5838839

Lee, M C; Nghiem, S V; Yoo, C ^[1]

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1. Massachusetts Institute of Technology, Cambridge (USA)

The previous model (Lee et al., 1982) of the Faraday polarization fluctuations (FPF) is extended after taking into anisotropic nature of the commonly observed, rodlike and sheetlike ionospheric irregularities. Striking effects of irregularity anisotropy are found in the longitudinal radio propagation. However, if the wave propagation angle is not small (say, greater than 5{degree}), the effects of irregularity anisotropy on FPF introduced by rodlike irregularities weaken significantly, while those caused by sheetlike irregularities remain prominent. Therefore, under the same ionospheric propagation conditions, sheetlike ionospheric irregularities are more effective than rodlike ionospheric irregularities in causing the FPF of radio waves. It is expected that intense FPF of VHF radio signals can be observed not only near the equatorial anomaly but also in the auroral region.

• OSTI ID: 5838839
• Journal Information: Journal of Geophysical Research; (USA), Journal Name: Journal of Geophysical Research; (USA) Vol. 94:A11; ISSN 0148-0227; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
AURORAL ZONES
CALCULATION METHODS
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
EQUATOR
FARADAY EFFECT
IONOSPHERE
MATHEMATICAL MODELS
PLANETARY IONOSPHERES
PLASMA DENSITY
POLARIZATION
RADIATIONS
RADIOWAVE RADIATION
WAVE PROPAGATION