OPERATION DOMINIC, FISH BOWL SERIES. Project Officer's Report. Project 9.1b. Ionospheric Wind and Diffusion Measurements
Project Officer's rept.
AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MA
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The aim of this project was to measure high-altitude wind velocities and diffusion coefficients in the altitude region between 60 and 150 km. The method involved the ejection of a sodium vapor trail from a Cajun rocket at dust or dawn twilight. The sodium was sunlit, and as a result of emission of resonance radiation, was visible against a darkened background for about 20 minutes. The trail was photographed simultaneously from four different sites, allowing for subsequent triangulation to determine the altitude of various parts of the cloud. A major application of these wind and diffusion data, taken at dusk and dawn following the high-altitude nuclear tests, was to aid in determining the disposition of the nuclear debris.
- Atmospheric Physics