at-sea days, while 10 laboratories were accommodated on 19 cruises 

 during 482 at-sea days in the Pacific. NAVOCEANO continued to 

 maintain and improve the capability of these ships to collect a wide 

 range of oceanographic, geophysical, and acoustic data. The 

 program is expected to continue at the same level in FY '74. 



In FY '73, special environmental surveys in coastal, inshore, and 

 river areas were carried out, one in Europe with two NATO navies 

 participating, another in the Pacific area with an Asian country 

 participating, and a third by the U.S. alone in Asia during operation 

 ENDSWEEP. The purpose of these surveyw was to acquire onsite 

 data directly applicable to predicting the effectiveness of mining and 

 inshore USW operations. Joint surveys are carried out under 

 bilateral navy-to-navy agreements and involve the use of host navy 

 ships and facilities. Nearshore water and bottom physical, electrical, 

 and acoustic characteristics are examined. These data provide the 

 environmental data input required by Allied technical publications. 

 In FY '74 operations continue with two NATO and one Asian nation. 



NAVOCEANO continued to use its deep-towed survey/search 

 system TELEPROBE in FY '73. Surveys include sidescan sonar data, 

 bottom photography, and bathymetry along with measurements of 

 conventional oceanographic data. Three of these surveys were 

 completed in west coast submarine trial areas by the end of 

 December 1973. Surveys are planned for additional west coast 

 submarine trial areas in late FY '74 and FY '75. 



During FY '73 a total of 68 new, updated, or revised oceanographic 

 publications and special charts were produced that provide 

 environmental, acoustical, and climatological information in 

 support of various fleet activities. A new publication, the Marine 

 Environmental Planning guide, is being prepared to provide 

 information for movement prediction of accidental oil spills and 

 guidance for dredging spoil disposal and to assist in establishing a 

 scientific basis for policy decisions regarding sewage and garbage 

 dumping from Navy ships in high traffic areas. During FY '74, 39 

 specialized publications and charts have been published to date. 

 Oceanographic contributions to various naval activity manuals, 

 publications, and charts will continue in FY '75. 



Environmental Prediction 



The Navy is responsible for providing oceanographic prediction 

 services for all DOD requirements. To execute this responsibility, 

 the Navy operates a full-service, wide-range ocean prediction 

 system. The core of this system is the Fleet Numerical Weather 

 Central (FNWC) located at Monterey, Calif. Dissemination of 

 products from the main computer processing component of FNWC is 

 provided by the Naval Environmental Data Network (NEDN) 



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