Phase and amplitude scintillations due to electrojet irregularities

Details Phase and amplitude scintillations due to electrojet irregularities Phase and amplitude scintillations due to electrojet irregularities

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jatp...53..379b&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 53, May 1991, p. 379-387.

Computer Science

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Electrojets, Electromagnetic Noise, Ionospheric Propagation, Radar Measurement, Rocket Sounding, Synchronous Satellites, Very High Frequencies, Amplitude Distribution Analysis, Fresnel Region, Irregularities, Magnetohydrodynamic Stability, Phase Shift, Power Spectra, Scintillation

Scientific paper

Features of the power spectra of weak amplitude and phase scintillations on a VHF signal, transmitted from a geostationary satellite and recorded at an equatorial station, are found to be in good agreement with theory. Irregularity drift speeds transverse to the signal path were extracted from the first few pronounced Fresnel minima in the power spectra. For some data intervals, a low frequency peak, associated with an irregularity wavelength greater than the Fresnel dimension, could be identified in the phase spectrum. The dominant wavelength of the large scale waves is found to be greater than 1.5 km.

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