waters gives information concerning the ocean that is otherwise 

 difficult to obtain. 



Recent developments in techniques for study of fluorescent dyes indicate 

 that diffusion studies of materials at depths in the ocean will soon 

 be feasible. Along with carefully controlled introduction of nuclear 

 materials, diffusion tests will help to explain oceanic phenomena as 

 well as improve the prediction of effects of accidental or deliberate 

 loss of nuclear devices into the ocean. 



Studies of circulation and mixing processes in coastal waters and 

 estuaries provide information of value to nuclear operations in these 

 waters, and they may add substantive information to our understanding 

 of such processes as upwelling and fishery production. 



■k9- 



