) Project 31.1 = Micrebaregraph - W, A, Custafoen The purpose of tale project was te measure winds in osone layer ef the atmosphere, This was accomplished by measuring at several sites the arrival times of the shock weve reflected frem the escne laver. Five sites were operated: Ujelang, Wethe, Rongerik, Bikini, and Eniwetok, At each site two stations were eperated about one mile apart. The differ- ance in arrival times gives the angle of incidence of the shock and infor mation from several stations may be combined te give the winds. CaPED) cect snot resorta ware cbtatned fron al» tatime bat no temperature and wind vectors are yet evallable. BEST AVAILABLE COPY