108 THE NAVY OCEANOGRAPHIC OPERATIONS PROGRAM 



amounts of data and information. In addition, visitors are welcome 

 to use reference archives at NODC without clearance or charge. 



Magnetic tape systems are designed for selective retrieval for 

 three-dimensional space and time. An IBM 7074 and 1401 are 

 being used at present. Data are available as machine printouts, 

 punched cards, or magnetic tapes. 



The Data Center provides data analysis and evaluation services 

 tailored to the requirements of the requester. Information 

 specialists search libraries to provide bibliographic references, 

 abstracts, and documents. A number of bibliographies of interest 

 to the Navy have been prepared. 



The Data Center publishes a monthly NEWSLETTER which 

 is available to those interested in the marine sciences. Other 

 publications include oceanographic data processing manuals, 

 catalogs of holdings, and some special publications such as data 

 reports, atlases, and progress reports. 



In return for receiving data recorded on standard forms, the 

 Center returns data in the form if machine listings, including 

 computed values when applicable. In addition, the Center enters 

 into agreements to provide data of specific types and for specific 

 areas in return for similar data. One of NODC's major activities 

 is the development of systems for more efficient and rapid pro- 

 cessing, archiving, and retrieval of marine physical, biological, 

 geological, and geophysical data. Systems now in use include 

 those for oceanographic station data, bathythermograph data 

 (analog and digital), and certain marine biological and geo- 

 logical data. Systems are under development for estuarine and 

 nearshore data; for marine chemical, biological, and geological 

 data; and for data on subsurface currents. 



