CHAPTER 2 CASTLE TESTS The bursts of the Castle series are given in Table 2.1. Castle Test Series Prey Table 2.1. 1 2 3 h 5 6 Code nane Date 1954 Bravo Feb.28 Romeo Mar.26 Koon Union Yankee Nectar Apr. 6 Apr.25 May & May 13 Time GCT 1845 1830 1820 1810 1810 1820 4 x. Total MT (Ot) 15 li 0.11 7 13.5 1.7 = dimension Base T ‘| (1000's of ft. 5 ae AR eo enemage Buret lio. Estimated vertical mushroon 62 1k | 53 ie i 4S 9h 110 72 62 0 ee . With the exception.of the third burst, the Castle series con- The first burst was detonated on ro Sisted of high-yield detonations. Bikini Atoll, the succeeding four from barges in the Bikini lagoon and the last on Eniwetok Atoll. As shown in Table 2.1, most of the radioactive clowls created in the Castle series extended to very great heights, with the mush- observations. For this reason, it has been impossible to prepare adequate mtecrological trajectories to determine the path of the | debris at various levels. The network of upper sir observing stations in the tropics is extremely sparse at best, and wind reports aq room of the cloud well in the stratosphere, and the greater part of the cloud in levels beyond the reach of routine meteorological at levels above 80,000 feet ere virtully nonexistent, with the exception of a fewfrom stations in the Mershell Islands and ary adjacent areas established especially for this test series. Even at these stations, the highest observations rarely extend sbove 100,000 ft.