Q ~- @ e Case. For operational use a 10 2 dose is a handy dividing point between "dangercus® and "harmless® levwals. .. dose index of the ordar of 10 is therefore perhape the most important of the family of lines, in index— of 10 is however established at rather lcte times — it is camleted for - the 90,000 t& Level at approximately 23 hours — and its extreme point may be a considerable distance fram the origin. Consequently it is in general desirable to makes appropriate corrections for time end espace changes in the tnd structure, The method devised is based on the same general aseumpticns es for the statie case and is arvain simple encugh to permit the preparation of a - plot. im a short time, The ecaplieation hero was that @ complete weather analysis of the entire area could not de made every few hours by the lim- ted crew at the Eniwetok Weather Central, Ccmsequently it ws necessary to have a forecastor present to make appropriate corrections as tho alot devaloped, aE by o simle application the conmtrituticn at te the sum. = “ ‘ To take . The mechanies of locating the 10 2 pcints (defore any adjustments) emoagh. The dose index equation (3) gives the dose e ne ‘Yor 1Omegatons. For a prodieted yield different fram 10 negatons Ck® MY Write @ dose equation « r