JOHNSTON ATOLL F&SNO. 01114 USER SCIENTIFIC TITLE Deep Ocean Wave Sensor, Type! STRUCTURE /FACILITY NO. DRL (Tamarin) SCIENTIFIC STATION NO. None BoD x None FOD FUNDING AGENCY AEC ($000) PRE-GO Prior Cost POST-GO Estimate ENGR PROC CONST TOTAL FURN Included in F&S No. 05027 TO BE DETERMINED PRIOR YEARS ENGINEERING None required. PROCUREMENT An AEC furnished 8 x 8 x 10-ft. transportainer stocked with Type I equipment and spare parts is located at Defense Research Laboratory (DRL), Santa Barbara, California. POST-GO PROCUREMENT To be accomplished. CONSTRUCTION The AEC furnished Type I wave sensor equipped installations are to be located over a wide geographic area of the Pacific Ocean. The primary objective is to measure and record the amplitude and time of arrival of long period waves over a predetermined period and to coordinate this data with that collected at Type Il and TypelIII Tamarin sites. The equipment will be emplaced, after initial surveys by DRL personnel, at three deep ocean Sites between JA, Palmyra, Canton and Wake. The Type I recording instruments will be put afloat in a small surface follower buoy, which replaces the skiff formerly used at Type sites. The three Type I systems will be replaced with a new system as funds become _available. The present system includes a taut wire instrument buoy system that is moored in deep ocean. The submerged instrumented buoy is connected to electrical conductors within a polypropylene line to a surface follower buoy that contains the recorders, batteries, and necessary timing devices. Each installation contains a differential sensor, data logging system, and an ar- mored cable connecting the implanted wave sensing transducer with the completely self-contained data logging system. All devices will be installed by DRL personnel from aU. S. Navy ATF vessel that is to be outfitted and partially loaded in the Pearl Harbor Naval Shipyard. The remainder of the equipment will be loaded at Johnston Atoll. 1-89 ae VOL I April 1969