Area-dosage Relationships and Time of Tracer Arrival in the Green Glow Program
William P. Elliott
Jan 1961 · Geophyics Research Directorate, Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force
Ebook
25
Pages
About this ebook
An empirical relationship between the area in which a given dosage is equalled or exceeded and the value of the dosage itself are developed using Green Glow data. It is found that the logarithm of the area is nearly a linear function of the logarithm of the dosage divided by the source strength and multiplied by a representative wind speed. These results differ only slightly from similar results obtained from Prairie Grass data. Observations of the time of first arrival of the tracer near ground level at distances of 8 and 16 miles from the source indicate that the tracer material which first arrives has travelled with a wind speed greater than the surface wind (about 15 ft). It would be necessary to have wind speed measurements between 50 and 100 ft above ground in order to estimate the time of first arrival at these distances even though the source is no higher than 15 ft.
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