TEMPERATURE 



The thermal regime (fig. 22) ranged from. < 53°F at 

 the bottom to > 71° at the surface. A relatively isothermal 

 warm layer overlay an unusually strong thermocline. 

 Within this region temperature generally decreased evenly 

 from near the surface to the bottom. Two marked vertical 

 oscillations were present. The crest of the first occurred 

 between 1400 and 2200 20 July, and the second between 

 0200 and 1000 21 July. In each case the peak of the oscilla- 

 tion followed high tide (indicated at the surface) by approxi- 

 mately 2 hours. 



x 30 - 



1000 



1400 



1800 



2200 0200 

 TIME (HOURS) 



0600 



1000 



Figure 22. V/ater temperature (°F), Operation II. 



41 



