‘ of the two contour ratios defined in Part I of this study, namely, the mass contour ratio and the fraction-of-device contour ratio. The effect of weapon yield, down- wind 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. of the two contour satios defined in Part I of this study, of burst, fractionation, tcrrain features, instrument response, extraneous debris, and meteorology on the values of the two contour ratios is discussed. Abstract Abstract UNCLASSIFIED of the two contour ratios defined in Part I of this study, namely, the mass contour 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 UNCLASSIFIED 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 zero, induced activities, fraction offission yield, height ratio and the fraction-of-device contour ratio. The effect of weapon yield, down- of burst, fractionation, terrain features, instrument response, extraneous debris, of burst, fractionation, terrain features, instrument response, extraneous debris, mxsgod and meteorology on the values of the two contour ratios is discussed. wind distance from ground zero, induced activities, fraction of fission yield, height and meteorology on the values of the two contourratios is discussed. Abstract Abstract UNCLASSIFIED a IZ UNCLASSIFIED