Computer Science – Sound
Scientific paper
Dec 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80.4735b&link_type=abstract
Journal of Geophysical Research, vol. 80, Dec. 1, 1975, p. 4735-4737.
Computer Science
Sound
1
Electron Density Profiles, Ionospheric Propagation, Radio Echoes, Spread F, Very High Frequencies, Ionospheric Disturbances, Ionospheric Electron Density, Ionospheric Sounding, Signal Reflection
Scientific paper
Calculations show that weak equatorial spread F observed at VHF wavelengths could be caused by partial reflections from regions containing sharp electron-density gradients. Gradients inferred from rocket and satellite data are sufficient to return signals more than an order of magnitude stronger than incoherent scatter from the same region. Data showing that the echoing regions drift with the ambient ionization and occur only in regions of strong density gradients are also consistent with this hypothesis.
Balsley Ben B.
Farley Donald T.
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