series which wiH replace the current 70-volume set. These accomplishments 

 are in addition to the hundreds of products, many of which are classified, 

 which flow directly from the survey ships to fleet components. 



Planning for special charts and tables for the worldwide Omega navigation 

 system was completed, and 26 Omega skywave correction tables for seven 

 areas in the North Atlantic and eastern Pacific were published. In addition, 

 numerous charts and tables were published in support of Loran and Loran-C 

 navigation networks covering the Norwegian Sea, North Pacific, U.S. west 

 coast, and Canada. A Radar Navigation Manual, H.O. Pub. 1310, was 

 published in response to the mariner's need for a practical and comprehen- 

 sive radar manual which could be used for rapid referral to various radar 

 techniques and information needed in the performance of ship control and 

 navigational duties. In another new publication effort, the final five volumes 

 of H.O. Pub. 229, Sight Reduction Tables for Marine Navigation, covering 

 latitudes 0° to 75°, were completed. The publication series is used for the 

 solution of celestial observations in the determination of ship's position. And 

 finally, the Navy furnished hydrographic data for almost 200 maps and 

 charts issued by the U.S. Army Topographic Command and the U.S. Air 

 Force Aeronautical Chart and Information Center. 



By Presidential directive, specific functions of all Department of Defense 

 components' mapping and charting activities are being consolidated into a 

 Defense Mapping Agency (DMA) . Details of the DMA organization are 

 still being worked out, but it is planned that all Navy mapping and charting 

 production and distribution activities will be transferred administratively 

 to the new agency about July 1, 1972. Field survey efforts will initially re- 

 main assigned to the services, as will data processing functions normally 

 performed by field survey personnel. Although Navy's operational program 

 will be reduced in scope, the level of service is expected to be maintained 

 through the complementary programs of the DMA. 



Environmental Prediction 



The Navy is responsible for providing oceanographic prediction services 

 for all Department of Defense 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) through interconnected digital computers and on- 

 line communications equipment. The FNWC processes, disseminates, and 

 displays meteorological and oceanographic analyses and forecasts on a hemi- 

 spheric basis to meet defense needs. With these facilities, real-time products 

 are continually updated and tailored to fleet and other defense requirements. 

 The FNWC products are distributed through the NEDN to Fleet Weather 

 Centrals and Facilities strategically located throughout the world. Marine 

 prediction products are tailored to the special needs of the users, with much 

 of the specific Navy support classified because of its application ; however, a 

 large part of the data collection program and data processing techniques 

 contribute to civil needs. Routine services include wave, swell, and surf fore- 

 casts for fleet operations; warnings of significant atmospheric and oceanic 



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