27 



laboratories — U.S. Navy Underwater Sound Labo- 

 atory (USNUSL) and the U.S. Navy Electronics 

 Laboratory (NEL). Its program is directed pri- 

 marily toward determining environmental factors 

 which are important in underwater acoustics, 

 electromagnetic radiation, and subsurface hydro- 

 dynamics. BtiShips has been active for many years 

 in the special problems of the Arctic, and has an 

 active interest in air-sea-ice interaction. 



Proposed FY 1967 Program 



Bureau of Ships will continue to support a 

 broad program in oceanography. Both USNUSL 

 and NEL will conduct investigations at sea using 

 AGOR's and submarines. Computer and other 

 analyses will be conducted at shore facilities of 

 sound transmission loss, and bottom reflectivity 

 characteristics, especially as they affect modern 

 long range sonar. Close cooperation will be main- 

 tained between NEL, USNUSL, and the Lamont 

 Geological Observatory (Columbia University) 

 in determining acoustical characteristics of the 

 ocean bottom. The effects of internal waves, 

 bubbles, and gas content on the propagation 

 characteristics of surface waters will be investigated 

 from an oceanographic tower at NEL. Also at 

 NEL, a new approach to the use of oceanographic 

 data in acoustic studies, "Oceanometrics" will be 

 further developed. This project combines fea- 

 tures of acoustical theory, electronic know-how, 

 statistical theory, and oceanographic information 

 in determining the acoustic variability of ocean 

 regions. The NEL Arctic Research Pool will con- 

 tinue to be used by investigators to simulate 

 Arctic conditions in research into the formation 

 of sea ice. Field stations on Cape Prince of Wales, 

 Alaska, and in the Canadian archipelago will 

 provide NEL with related environmental data. 



In addition to acoustically-oriented research, 

 USNUSL and NEL will study the electromagnetic 

 properties of the surface layers of the sea using 

 undersea vehicles. The Bureau will continue to 

 support a project at the Naval Research Labo- 

 ratory on surface effects resulting from the 

 passage of a submarine. 



Investigations of high-frequency surface noise 

 spectra will be made at the University of Miami. 

 Additional research will go forward at the five 

 other BuShips laboratories: 



Mine Defense Laboratory — Measurement of pres- 

 sure wave spectra in shallow water. 



David Taylor Model fi«,sz« — Determination of 

 wave spectra for sea-keeping model studies in 

 tanks. 



Radiological Defense Laftoratoo'— In\estigations of 

 the structure of radiological background in the sea. 



Applied Science Laborarory — Study of micro- 

 organisms affecting corrosion. 



Marine Engineering La6o?"fltor'y— Investigations of 

 sea water imder high pressure. 



Bureau of Naval Weapons 



FY 1965-1906,000 

 FY 1966-1906,000 

 FY 1967-1910,000 



Background 



The Bureau's continuing program in ocean- 

 ography is directed toward achieving a better 

 understanding of the effects of the marine en- 

 vironment on the performance of naval weapon 

 systems. Since many of these systems are equipped 

 with acoustic devices, the relationships and effects 

 of ocean properties and of the sea bottom on the 

 behavior of underwater sound must be studied. 

 Other weapon systems require a broader under- 

 standing of the magnetic and gravitational fields 

 at the bottom of the ocean, and the exchange of 

 energy across the air-sea interface. 



Proposed FY 1967 Program 



In FY 1967 BuWeps laboratories will use new 

 oceanographic research ships for experiments 

 important to system design and development and 

 to predict systems performance. Laboratories 

 will continue to study the behavior of underwater 

 sound in relation to the physical and chemical 

 properties of the ocean. Of particular concern 

 will be the nature and degree of variability of 

 such behavior, both horizontally and with depth, 

 and the extent to which it affects the performance 

 of naval systems. 



