Positive Ion Composition Measurements in the Lower Ionosphere During the 12 November 1966 Solar Eclipse

Positive Ion Composition Measurements in the Lower Ionosphere During the 12 November 1966 Solar Eclipse PDF

Author: Rocco S. Narcisi

Publisher:

Published: 1970

Total Pages: 22

ISBN-13:

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Positive ion composition measurements in the D and E regions were performed on three rocket flights during the 1966 solar eclipse program conducted at Cassino, Brazil. The E region results showed that, at totality, NO+ and O2+ decreased in density while the ratio NO+/O2 increased. Long-lived meteoric ions appeared to be unaffected during the short period of the eclipse. A submerged layer of meteoric ions became prominent at totality when the molecular ion densities were smallest and produced a sporadic E layer. The D region results indicated that the decay in the water cluster ions at totality was probably less than a factor of four in the vicinity of 80 km. This work represents part of a continuing Air Force program to study lower ionospheric processes which affect communications. (Author).

Ionospheric Research in Support of Atmospheric Ionozation Effects

Ionospheric Research in Support of Atmospheric Ionozation Effects PDF

Author: George J. Gassmann

Publisher:

Published: 1968

Total Pages: 64

ISBN-13:

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For the specific goal to control or predict man-made ionization effects the Defense Department has stimulated research in some areas and particularly in ionospheric physics. The results are reviewed with the implication that most of them are significant only within the larger pool of knowledge being produced by basic research. The review covers recent results gained by means of rockets and satellites on various atmospheric parameters and on the various particle inputs. Further, it reports on conjugate phenomena, on geographical features of particle influx and of electric fields and on progress in radio propagation measuring techniques. Finally, it reviews the observed effects on the ionosphere during the coordinated 12 November 1966 solar eclipse expedition. (Author).

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