FOREITORD 



Effective thermal structure predictions for the Anti- 

 submarine Warfare Environmental Prediction Services (ASWEPS) 

 of the U.S. Naval Oceanographic Office require knowledge of 

 heat transfer processes. To investigate such processes, the 

 Oceanographic Office conducted a series of l6 experiments 

 in the Atlantic and Pacific Oceans between I958 and I965. 

 The processes governing the daily and annual cycle of tem- 

 peratiore in the upper layers of the ocean were measured 

 during these experiments. The results of an experiment in 

 September 1959 at Ocean Weather Station ECHO (35°N, 480w) 

 are discussed in this report. Diurnal temperature changes 

 recorded during this experiment have been analyzed by the 

 author in Technical Report No. 132. 



0. D. WATERS, JR. C/ 



Rear Admiral, U.S. Navy 



Commander 



U.S. Naval Oceanographic Office 



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