Vertical ionospheric sounding measurements

Technical Report · Fri Aug 28 04:00:00 EDT 1964

OSTI ID:5413138

Utlaut, W F; Gautier, T N

This report presents data on the ionospheric perturbations resulting from the five 1962 high-altitude nuclear detonations, Star Fish, Check Mate, Blue Gill, King Fish, and Tight Rope, as obtained with sweep-frequency vertical-incidence ionosondes operated at the Islands of Maui, Tern (French Frigate Shoals), Midway, Wake (Star Fish only), Canton, Tutuila (American Samoa), and Tongatapu. The ionosondes at Midway and Tongataupu had a frequency range of 1 to 25 mc. At the other stations the range was 0.25 to 20 mc. The objective was to obtain information on the immediate and delayed effects on the ionosphere, including radio-wave absorption and changes in electron density, at various distances and directions from the detonations. Beginning a few minutes before detonation, each ionosonde was operated continuously until about H + 2 hours, when the interval between ionograms was increased to five minutes for several more hours. Otherwise, ionograms were made at 15-minute intervals.

• Research Organization: National Bureau of Standards, Boulder, CO (USA). Central Radio Propagation Lab.
• OSTI ID: 5413138
• Report Number(s): AD-353599/4/XAB
• Country of Publication: United States
• Language: English

Related Subjects

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
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INFORMATION
IONOSPHERIC EFFECTS
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