STATUS OF GLOBAL FALLOUT PREDICTIONS 379 Table 1—GLOBAL "Sr INVENTORY, MEGACURIES May ~Stratosphere Northern hemisphere To 21 km 21 to 30 km Southern hemisphere To 21 km 21 to 30 km Troposphere — Total in atmosphere To 30 km Worldwide deposition Estimated local fallout Total ’ Cumulative production 1960 1961 May April January January 0.25 0.25 0.22 0,12 1.11 0.13 4,51 1.21 2.7 0.7 0.25 0.19 0.26 0.21 0.42 0.4 0.12 0.05 0.10 0.2 0.03 0.03 0.16 0.32 0.3 1.0 4.3 2.6 0.8 4.5 2.5 1.7 5.1 2.5 6.6 5.8 2.4 4.3 7.9 2.4 7.9 7.8 9.3 14.8 14.6 8.8 8.5 11.1 19.1 18.6 1962 1963 1964 Table 2—GLOBAL EXCESS 44C INVENTORY,* 1027 ATOMS November 1960 May to June 1961 2.0 2.4 March to April 1963 July 1963 December to January 1964 14,2 14.8 13.4 Stratosphere Northern hemisphere To 21 km 21 to 30 km Southern hemisphere To 21 km 21 to 30 km . : 1.2 1.7 Total Cumulative production 6.5 4.6 (1.5) (1.3) . (1.3) 2.3 4.1 (1.9) 10.5 11.8 24.5 28.4 28.1 19.1 48.3 12,1 13.4 16.2 21,4 25.3 60.4 «68.5 69.4" 24.3 24.3 91.7 91.7 91.7 §.1 1.7 6.0 (0.9) Totalin atmosphere ~ : To 30 km’ 16.3 . Oceanic uptake 1.7 6.2 55.1 *Parentheses denote estimates where there were no observations. 3.5 51.5