2.10 Project Number: Sponsor: ONR=USN Project Officer: 2.10 1.6 Title: Water Wave Studies PerformingAgency: Dr. R. R. Revelle Seripps Institu- tion of Oceanography Objective o (1) obtain measurements of the water wave characteristics, (2) determingif possible the wave forming and dissipating mechanism for waves f mmed by a detonation close to the water surface. Since the-wave produces a passing change of water pressure, the wave height as ‘well as other characteristics of the wave can be determined by measuring the subsurface pressure variation with time. Four pressure~time sensitive heads will be placed on coral heads within the Bikini lagoon. Recorders will be installed in skiffs anchored above the pressure heads. “Distances of the stations from ground zero will change for each shot, however, the closest station will be approximtely = nautical miles and the | miles from ground zero. 20 to 30 ft of water off Rninmagiand Enyu. Distance wave recorders will be located at La Jolla and eeanside, Calif., Midway, Wake, Guam, and Eniwetok Islands. moj Two other gages will be”“used«~Open cans will be fastened to existing poles on three islands in (He-Bikini Atoll to indicate the maximm inundation and feasibility tésts will be made on water shock oat vs time gages installed at the bottdém-of ve lagoon. 2.10.3 Remarks c | Principal participation will be innShots-Bravo, Union, Yankee, Nectar, Romeo and Koon. The distant island stations will participate on all shots. 2.11 Project Mumber: Sponsor: AFSWP Project Officer: 2.11.1 1.7 Title: close-in Ground Acee leratipns PerformingAgency? Sandia Dr. J. M. Harding Corporation Objective To determine the amount of blast energy transmitted radially outward through the earth's surface. 24 ~