es s ETORecere Clee 0018933 \ CHAPTER IV CONCLUSIONS AND RECOMMENDATIONS 4.1 CONCLUSIONS The failure of the rocket sampling program made it necessary to rely almost exclusively upon the technigue of relative enrichment of volatile material in an isolated portion of the cloud for the measurement of fallout partition. This technique is an unproved one which includes some rather bold assumptions, and a number of experimental difficulties. It should be born in mind that if was not possible to sample at altitudes as high as desirable, and differences in cloud height with energy release and their subsequent effects upon fallout partition were not clearly defined. However, with these reservations it is concluded that the technique generated a reasonably consistent body of data which was interpretable in the fashion expected. The pattern of progressive enrichment of volatile material in an isolated portion of the cloud was displayed in Walnut on a rather long time scale. However, if progressive enrichment occurred in Koa and Oak, it was on a time scale short compared to two hours. Since the program for early sampling by rockets was not successful, no data exist for these shots to demonstrate a time-dependent effect in the direction of enrichment. 1. The results suggest that for megaton range weapons detonated at the ocean surface, around one-fourth of the sr7? and one-third of the C5137 formed will be dispersed over distances greater than 4,000 miles. 2. Corresponding figures for a coral land surface or reef are around one- fifth for sr? and one-half for Cst37,