0.8 @ 0.7 FRACTION OF Sr?91IN CLOUD FWATER SURFACE (~58,000') 0.5 | XY / SA! 0.4 | | 28 26.000" L + XQ ma oa 0.3 aon | 0.1 | WALNUT 0.6 0.2 1 VALUE COMPUTED USING 6.5 HR Mo®® TO Kr88 RATIO : , { | | A 1 LL piShe suerate : i | | ! / VY | 2 4 | LAND SURFACE (60,000 yoy rtp bo | 6 8 | | Hf 10 12 14 16 1® 20 22 24 26 28 TIME SINCE DETONATION (HR) Figure 3.2 Fraction of total Sr® formed that remainsaloft at various times. 49