but we have some non-Navy customers, too. The terminals shown are 

 all connected to digitally controlled automatic X-Y plotters, which 

 provide hard-copy map analyses and prognoses. 



The KEDN is Interconnected with the U.S. Air Force automated 

 weather network (Fig. 13). Meteorological data is collected in 

 England and Japan and sent at high speeds to Tinker Air Force Base 

 and subsequently to Monterey. Over 90^ of the data used in Monterey's 

 analyses comes via the AWN circuit. 



I move now from organization, mission, and method of operations 

 to some of our products and services. First, let's examine things 

 relating primarily to meteorology. 



A variety of analyses and prognostic weather charts is constant- 

 ly generated to provide the operating forces with a three-dimensional 

 hemisphere picture of the atmosphere from surface to 100,000 feet. 

 These basic charts are used in the conventional way by forecasters 

 to provide necessary services to the Fleet. 



Supplementing the basic material are a number of specifically 

 tailored products and services; the Naval Weather Service moves 

 more and more in the direction of providing tailored services. 

 Among others, these tailored services include: 



High winds and high seas warnings 



Hurricane and typhoon forecasts 



Short-term ice forecasts 



Enroute weather forecasts for individual ships and forces 



Surf forecasts for amphibious operations (Fig. l^l-) 



These include a variety of parameters --height, type, 

 and period of breakers; width of surf zone; littoral 

 currents. 



Aviation forecasts --route winds at flight altitude and 

 ditch headings (Fig. 15). FLEWEACEN Pearl runs a 

 tropical program, covering the whole Pacific, from 

 which 100,000 military and civilian clearances a 

 month are made. 



Ballistic winds and density — for accurate firing of guns 

 and missiles (Fig. l6). 



Refractive index- -for determination of radar propagation 

 conditions in the atmosphere. 



Undeivay replenishment forecasts--these forecasts provide 

 a measure of the anticipated difficulty of replenishing 

 one ship from another while underway (Fig. 17). 



Optimum track ship routing 



This service, developed by the Naval Oceanographic 

 Office, integrates anticipated sea and weather conditions 

 with ship characteristics and operating constraints to 

 select a safe least-time track for a given ship voyage. 

 FHEWEACEN Alameda routed 5328 ships in 1968. 



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