considerable eyuinment. Of the buoys recovered fallout data were obtained from only 20 on Shots 1 and 2, vata were obtained on the currents in the vicinity of the two atolls. These data alone with similar data from IVY are included in . ppendix H, 2363-1 shot The array planned for the first shot is shown in Figs. 2.5 and 2.6, This was considered to be a reasonable effort based upon rehearsal experience, Heavy seas prevented plac.ment of all except the portion shown in Fi;. £.0. This attempt to sample the fallout was unsuccessful beeause the pri:ary fullout occurred in another sector. This failure indicated the importance of huving a 360° array around ground zero. Rededee Shot 2 The originz1 plan for shot 2 called for a complete 360° array sinilur to thet planned for Shot 1. A portion cf this plan was executed tvice tut in ezch case the shot was deferred for un indefinite period. The buoys placed cn these cecasions vere lest. «an alternate clan which re.juir:d less time to implement was dev>loped for use in case notice of the siiot date was given too near shot time to permit laying the -riginal urray. This ulternu.te plen was used for Uhot 2. Pededed See Fig. 2.7. cChot 4 The buoy urray and cetuils of the operation plan for Shot 4 nme given in Appendix a. This plun was successfully carried out on the basis of a firm schedule for the fourth test. However the effort was nullificd by a very lat: deferment of the shot. here r ccvered, Cnly 7 of the 26 buoys when the shot finally did occur no buoys were in the orlinury fLllout zone, Keledek thot 5 Buovs were lid in two separate attempts to d cument fallout on Shot §, The first array vas cinilar to that employed for Shot 2 (Fig. 2.7). The cecond was intended to aument the first follovin, a ei-hr dela; of the test. Further deferment . ullified this effort, also. Participation by projcct personnel in the water samplin.: procrum was effected lor Shots 5 and 6, elcewhere,. 230305 wtesults of this field work huve been reported Shot 6 our buoys were planted from the chips assimned to Project 6.4, covceneing i-hr prior to the shot. il:avy seas prevented recovery of any units. 31