FOREWORD ' 



Sine© changes that occur in the thermal structure of 

 the oceans have a far reaching effect on various naval 

 operations, any practical technique that can be developed 

 to predict these changes would have considerable oper- 

 ational utility. 



This report represents the results of research con- 

 cerning the effect of weather on the therinal structure of 

 the ocean conducted by the Division of Oceanography up to 

 30 June 1952 under ONR Contract 260005. This project ia 

 being continued by the Hydrographic Office with periodic 

 progress reports to be published at appropriate intervals. 



It is requested that activities receiving this pub- 

 lication forward their comments to the Hydrographic Of- 

 fice, 



KARL P. POEHLMANN 

 Captain, USN 

 Hydrographer 



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