Introduction to Solar Terrestrial Relations pp 247-256 | Cite as
Irregularities in the Ionospheric Electron Density Distribution Causing Radio Wave Scintillation
Abstract
Shortly after the discovery of discrete sources of cosmic radio noise it was found that the strength of the sources was variable. First, it was believed that the sources varied, but Smith, Little and Maxwell found that there was no correlation between the fluctuations recorded at two points on the ground separated by a distance of the order at 100 km. From this observation it could be concluded that the fluctuations originate in the medium through which the radio waves propagate. The effect is similar to the scintillation of stars in the visible frequencies. Scintillations have been observed at radio wavelengths varying between 20 m and 8 mm in the radiation coming from the sun, Cygnus, Cassiopeia, Taurus, Virgo and Centaurus and also in transmissions from artifical satellites.
Keywords
Drift Velocity Faraday Rotation Auroral Zone Scintillation Index Ionospheric IrregularityPreview
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References
- Aarons, J.: 1963, ‘Low-angle scintillations of discrete sources’, Radioastronomical and satellite studies of the atmosphere (ed. by J. Aarons ), North Holland Publishing Co., pp. 65–90.Google Scholar
- Harrower, G. A.: 1963, ‘Theoretical considerations in the interpretation of radio star scintillation observations’, Radioastronomical and satellite studies of the atmosphere (ed. by J. Aarons ), North Holland Publishing Co., pp. 38–64.Google Scholar
- Liszka, L.: 1963, Arkiv for geofysik 4, 227–246.Google Scholar
- Little, C. G., Reid, G. C., Stiltner, E., and Meritt, R. P.: 1962, J. Geophys. Res. 67 , 1763–84.ADSCrossRefGoogle Scholar
- Phillips, G. J. and Spencer, M.: 1955, Phys. Soc. B. 68 , 481–492.ADSCrossRefGoogle Scholar
- Ratcliffe, J. A.: 1956, Rep. Progr. Phys. 19 , 188–267.ADSCrossRefGoogle Scholar