of the two contour ratios defined in Part 1 of this study, namely, the mass contour ratio and the fraction-of-device contour ratio. The effect of weapon yield, downwind distance from ground zerv, induced activities, fraction of fission yield, height of burst, fractionation, terrain features, instrument response, extraneous debris, and meteorology on the values of the two contour ratios is discussed. of the two contour ratios defined in Part [ of this study, namely, the mass contour’ ratio and the fraction-of-device conaour ratio. The effect of weapon yield, downwind distance from ground zero, induced activities, fraction of fission yield, height of burst, fractionation, terrain features, instrument response, extraneous debris, and meteorology on the values of the two contour ratios is discussed. Abstract Abstract UNCLASSIFIED UNCLASSIFIED of the two contour ratios defined in Part I of this study, of the two contour ratios defined in Part I of this study, namely, the mass contour tatio and the fraction-of-device contour ratio. The effect of weapon yield, down- namely, the mass contour ratio and the fraction-of-device contour ratio. The effect of weapon yield, downwind distance from ground zero, induced activities, fraction of fission yield, height wind distance from ground zero, induced activities, fraction of fission yield, height of burst, fractionation, terrain features, instrument response, extraneous debris, of burst, fractionation, terrain features, instrument response, extraneous debris, and meteorology on the values of the two contour ratios is discussed. and meteorology on the values of the two contour ratios is discussed. 3 : = % Abstract UNCLASSIFIED Abstract UNCLASSIFIED W > » ™