Computer Science – Sound
Scientific paper
Apr 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9..450b&link_type=abstract
Geophysical Research Letters, vol. 9, Apr. 1982, p. 450-453.
Computer Science
Sound
1
Acoustic Sounding, E Region, Ionospheric Electron Density, Ionospheric Propagation, Ionospheric Sounding, Ionospheric Temperature, Doppler Effect, High Frequencies, Propagation Velocity, Radio Wave Refraction, Sound Waves, Vertical Orientation, Wave Reflection
Scientific paper
It is noted that an acoustic wave generated at ground level and propagating vertically through the lower ionosphere produces partial reflections of radio waves transmitted by a vertical sounder. The Doppler effect of the radio wave produced by the acoustic wave motion depends on the properties of the atmosphere and ionosphere. It is shown that this permits a determination of both the neutral-temperature and the electron-density profiles of the lower E region. The accuracy and the advantages offered by this method are discussed, and some experimental results are compared with those of other measurement techniques.
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