_ 9 APE (ce) Project 1.9 - Water Wave Studies - L. W. Kidd OBJECTIVES AND INSTRUMENTATION Instrumentation was activated to measure water waves resulting from ea (FLATHEAD), A total of ten stations were utilized in the Bikini Lagoon Area to document wave action from this event. Six of these stations ylelded useful data, They were the four shore recording installations, one turtle station (197.04) and one skiff station (196.03), The turtle and skiff station were at ranges 2400 yards and 11,800 yards respectively from ground zero. Two long perioi wave recorders were active at Ailinginae and Eniwetok Atolls to doc = t any long period waves in the open sea resulting from liliso. An inundation survey of islands in the Pikini Atoll to determine the extent of water up-rush and flooding was completed on F # 2, In addition, the distant stations on Wake ani Johnson Islands were active, RESULTS Approximate maximum deep water amplitudes (trough to crest) at the shore recorjing stations in Bikini Lagoon were as follows: Enyu - 2 ft. Biking -1) ft, Airukiiji - 24 ft Chieerete - 2¢ ft. ' As anticipated, the periods of waves from the a (FLATHEAD ) —_—— were considerably less than those from hell too) waves ranged from 1} min to 25 sec. Wave energy dissipation along the COPIES Ig 7 LANL a, ae € Periods of - \ -15- PY . -