Scattering from F-region irregularities at 4.5 and 7.5 MHz

Details Scattering from F-region irregularities at 4.5 and 7.5 MHz Scattering from F-region irregularities at 4.5 and 7.5 MHz

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jatp...37..769c&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 37, May 1975, p. 769-776. Research supported by the Radio Research Board a

Physics

1

Atmospheric Scattering, Doppler Effect, F Region, Ionospheric Propagation, Radio Scattering, Short Wave Radio Transmission, Continuous Radiation, Critical Frequencies, Frequency Shift, High Frequencies, Ionospheric Disturbances, Midlatitude Atmosphere, Propagation Modes, Radio Reception

Scientific paper

Attention is given to observations from ionosondes and a HF Doppler sounder system operated over a near vertical incidence path. The data show that scattering is responsible for strong signals received by the Doppler system after the F-region critical frequencies have fallen below the equivalent vertical frequency used in the Doppler experiment. The characteristics of the received radio signals imply that in the F-region irregularities exist with sizes equal to half the radio frequency wavelength.

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