CTAVATO) Project 2.64 = Fallout Location and Delineation by Aerial Survey ~ R. Graveson ORTECTIVES To survey the gamnz radiation from fallout contaminated ocean areas using an airborne detector. To survey the areas of % e sea, off Piking Atoll, which are con+ wT ws taminated prior te the shet. The information to provide both beck~ round ratiation data, and oceancgrarhic stulice of the mixing of the lagoon water inte the open sea. Three P2V-5 atrorcft were equipped with camma radiation detect ~ vo reeor?l the dose rate arriving through the thin aireraf. skin from a waver surface helow . Cme aireraft was flew over the Pikind Atoll area, and the contavinated area, which was expeate? tc be downwind of the atoll, was to be delineated, Surveys were sehriulod for minue three, and minus ixc. The preeshot surveys were requestel by Program II on Navaje —3 ATSTITS corn.finey- to an area 60 miles ure 19 miles north of cround zore. area wae delinerte?. It was ce The Deday survey was staried late on the afternoon of D-day. The ecuthern boundary of the contaminated The sircraft enersumtere? no airborne ecntaminetion. The D plus 1 survey utilize? two airercft simultaneously. a ountered Q eraft contamination was ao elapsed flight time totaled aprroximately 16 hours for the two. va Total No air- throughout the area of contaminated The contaminate? arca extended arproximately 15° miles frem GZ. _. rar ' oh , “ae -27-