The D+ 1 fli.» located the EOB and delineated the co. ainated areas (Figure 3.7). A con- taminated patch was suspected to be northeast of Bikini, based on the control center plots. During the data reduction, a navigational reporting error was discovered which changed the relatively isolated patch from the northeast to a position almost due east of Bikini. TABLE 3.2 Altitude ALTITUDE RADIATION DATA OVER WATER mr/hr* mr/hrt mr/brt ft 1,000 0.41 800 0.52 700 0.12 0.225 600 0.135 0.225 500 0.135 0.29 400 0.175 0.38 300 0.175 0.42 200 0.225 0.62 1.1 2.1 1.4, 1.78 50 2.6, 3.08 * Tewa + 3, 12-01 N, 164-41 E, Top Hat detector in P2V-5. + Tewa + 3, 12-11 N, 165-02 E, Top Hat detector in P2V-5. t Seminole D-day, off Janet, scintameter, TH-3, in helicopter. § Values from repeat runs. oll The D + 2 flights (Figure 3.8) investigated the northeast sector without discovering contamination. The eastern contamination was not suspected until the data-reduction period, so no further examination was scheduled in that sector. The D + 3 flights (Figure 3.9) reconfirmed the hot area. No further flights were scheduled, TABLE 3.3 SUMMARY OF FALLOUT DISTRIBUTION, ZUNI Isodose Area Difference Area mr/hr mi? mi? 165 4,677 8,433 13,653 165 4,512 3,756 5,250 Average Contamination ror/hr mc D+1 1.25 0.25 0.125 0.025 1.25 0.59 0.18 0.06 83 1,065 270 126 1,544 mc at H+ 24 hours D+3 0.75 0.25 757 6,775 757 6,018 1.25 0.50 as low intensities were encountered on this day. The fallout distribution is summarized in Table 3.3. 3793 1,204 DOE ARCHIVES 3.3.3 Shot Flathead. The D-day flight discovered relatively high dose rate just west of Bikini (Figure 3.10). The position immediately adjacent to the reef indicated that this could be lagoon water passing over the reef, rather than faliout. 31 =: This area was not completely mixed, ad