Geophysical investigations by scattered radio waves
Journal Article
·
· Radio Sci., v. 10, no. 7, pp. 681-691
The application of scattered radio waves to geophysical investigations is reviewed. The occurrence of ground scatter depends on the smoothness of the reflecting layer and limits for the inhomogeneity may be given. Direct backscatter occurs from field-aligned irregularities in the auroral belt and movements may be derived from Doppler shift. The location and temporal movement of the two predominant precipitation belts are observed. Meteor scatter is strongly aspect sensitive and is used for deriving physical properties of the meteorites. The analysis of scattering in transequatorial short wave propagation points to a gravity wave induced system of eastward travelling field-aligned inhomogeneities. Incoherent scatter has proved a successful tool for investigating many important parameters of the ionosphere. Satellite scintillations are helpful in mapping the irregularities of the electron content. They may be used for determining the height of the irregularities by radio wave holography. Scattering of microwaves on the ground is becoming a useful tool for geoexploration. (auth)
- Research Organization:
- Max-Planck-Institut fuer Aeronomie, Lindau, Ger.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-33-001747
- OSTI ID:
- 4140984
- Journal Information:
- Radio Sci., v. 10, no. 7, pp. 681-691, Journal Name: Radio Sci., v. 10, no. 7, pp. 681-691; ISSN RASCA
- Country of Publication:
- United States
- Language:
- English
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