1, srogram Six - DOD (USK) ~ 2. roject 6.7a - Underwater Pressures across the lagoon and in Deep water. 3. Une Phase. le To make & limited nu.ber of peek weter pressure measurements along e line from ground zero through the center of the lagoon. In addition, the pressure tine history of the underwater shock wave, in the deep weter immediately cutside of the reef northwest of the shot island, will te obtained. 5e One Shot (i.1KL) 6. «A minimuw of four pressure meesuring oud recording systems will be noored below the surfice of the deep water immediatel; adjacent to the Scrizps Institute vessels will retrievg te " Aa reef northwest of Llugeleb. = 4 = records end unite 7. hecovery when radiolegical conditio.s permit. 8, wot applicable. "9, a " 10, * # ll. Freferably with M+ 4. One monitor per ship - instrumentation and representative film bedges. honitors will be assbgued to ezech ship. 12. Lfforts should be meade to keep ships free of conteminetimg currents. aes.