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warmer months, June through October. Exceptions to this 

 general distribution do occur, as in March when the water was 

 cooler offshore, and in June when it was cool nearshore. These 

 differences can be ascribed to particular weather conditions 

 that existed at the time of the temperature survey. Obviously, 

 digressions from the general patterns may have occurred during 

 other times of the year, but were not sampled during this sur- 

 vey. These differences that occur from time to time through- 

 out the year indicate the close relationship between the water 

 distribution and the immediate meteorologic conditions, in 

 addition to the annual cycle. Nevertheless, the biannual 

 patterns are too regular to dismiss lightly and it is certain 

 that the two-season distribution is real. 



The location of the major portion of warm and cold water 

 determines the basic direction of water motion that is con- 

 sequently established. This is especially true within three 

 miles of shore where temperature slopes are better developed 

 than farther offshore. Thus, a general southerly flow exists 

 in the winter and a northerly flow in the summer. The tempera- 

 tures from the data taken in April, May, and September indicate 

 no north or south component, and such periods could well have 

 occurred in other months. However, during most of the year a 

 water motion parallel to the eastern shore of the bay is present 

 and material carried shoreward must necessarily follow a devious 

 path, either to the north or south. 



In all months there are parts of the bay where no iso- 

 thermal slopes are developed. There is no apparent regular 

 distribution of these flat thermal surfaces, except that they 



